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Linux Analysis Report
most-arm5.elf

Overview

General Information

Sample name:	most-arm5.elf
Analysis ID:	1653737
MD5:	f64bb639d4976d9619142099c36575eb
SHA1:	a1bb9a65cb0290fb92683af20333c11e0b16c4bc
SHA256:	457ac3463c32393c1ca5b86684c1aaa30f883746ca5e42cd5b41d5b0d85fb94e
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	56
Range:	0 - 100

Signatures

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Executes the "rm" command used to delete files or directories

Found strings indicative of a multi-platform dropper

Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable

Sample has stripped symbol table

Uses the "uname" system call to query kernel version information (possible evasion)

Yara signature match

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1653737
Start date and time:	2025-04-01 15:47:11 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 10m 43s
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	defaultlinuxfilecookbook.jbs
Analysis system description:	Ubuntu Linux 20.04 x64 (Kernel 5.4.0-72, Firefox 91.0, Evince Document Viewer 3.36.10, LibreOffice 6.4.7.2, OpenJDK 11.0.11)
Analysis Mode:	default
Sample name:	most-arm5.elf
Detection:	MAL
Classification:	mal56.linELF@0/0@0/0
Cookbook Comments:	Analysis time extended to 480s due to sleep detection in submitted sample

Runtime Messages

Command:	/tmp/most-arm5.elf
PID:	6226
Exit Code:	255
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:	/lib/ld-uClibc.so.0: No such file or directory

Process Tree

system is lnxubuntu20

most-arm5.elf (PID: 6226, Parent: 6149, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/most-arm5.elf

dash New Fork (PID: 6287, Parent: 4331)

rm (PID: 6287, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.W59ZJ0nwFs /tmp/tmp.jSioS4r1x7 /tmp/tmp.R4qkCERNrr

dash New Fork (PID: 6288, Parent: 4331)

rm (PID: 6288, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.W59ZJ0nwFs /tmp/tmp.jSioS4r1x7 /tmp/tmp.R4qkCERNrr

cleanup

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
most-arm5.elf	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x8114:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x8128:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x813c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x8150:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x8164:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x8178:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x818c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x81a0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x81b4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x81c8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x81dc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x81f0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x8204:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x8218:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x822c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x8240:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x8254:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x8268:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x827c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x8290:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x82a4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F

Memory Dumps

Source	Rule	Description	Author	Strings
6226.1.00007f9cc8017000.00007f9cc8020000.r-x.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x8114:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x8128:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x813c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x8150:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x8164:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x8178:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x818c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x81a0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x81b4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x81c8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x81dc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x81f0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x8204:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x8218:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x822c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x8240:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x8254:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x8268:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x827c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x8290:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x82a4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
Process Memory Space: most-arm5.elf PID: 6226	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x3f9a:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x3fae:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x3fc2:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x3fd6:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x3fea:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x3ffe:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x4012:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x4026:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x403a:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x404e:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x4062:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x4076:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x408a:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x409e:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x40b2:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x40c6:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x40da:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x40ee:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x4102:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x4116:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x412a:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

• AV Detection
• Spreading
• Networking
• System Summary
• Persistence and Installation Behavior
• Malware Analysis System Evasion

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: most-arm5.elf	Virustotal: Detection: 33%			Perma Link
Source: most-arm5.elf	ReversingLabs: Detection: 41%

Source: most-arm5.elf

String: nh con../dvr_gui./upnp_server./dvr_app./pkillkillallwgetbusyboxtopcurlrebootpsftptftppgrepgrepxargsawktoyboxsuT

Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219

Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 39250
Source: unknown	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 42836 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 39250 -> 443

System Summary

Malicious sample detected (through community Yara rule)

Source: most-arm5.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 6226.1.00007f9cc8017000.00007f9cc8020000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: most-arm5.elf PID: 6226, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown

Source: Initial sample	String containing 'busybox' found: busybox
Source: Initial sample	String containing 'busybox' found: nh con../dvr_gui./upnp_server./dvr_app./pkillkillallwgetbusyboxtopcurlrebootpsftptftppgrepgrepxargsawktoyboxsuT

Source: ELF static info symbol of initial sample

.symtab present: no

Source: most-arm5.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
Source: 6226.1.00007f9cc8017000.00007f9cc8020000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
Source: Process Memory Space: most-arm5.elf PID: 6226, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16

Source: classification engine

Classification label: mal56.linELF@0/0@0/0

Source: /usr/bin/dash (PID: 6287)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.W59ZJ0nwFs /tmp/tmp.jSioS4r1x7 /tmp/tmp.R4qkCERNrr			Jump to behavior
Source: /usr/bin/dash (PID: 6288)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.W59ZJ0nwFs /tmp/tmp.jSioS4r1x7 /tmp/tmp.R4qkCERNrr			Jump to behavior

Source: /tmp/most-arm5.elf (PID: 6226)

Queries kernel information via 'uname':

Jump to behavior

Source: most-arm5.elf, 6226.1.00007ffc95aaf000.00007ffc95ad0000.rw-.sdmp	Binary or memory string: ux86_64/usr/bin/qemu-arm/tmp/most-arm5.elfSUDO_USER=saturninoPATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/binDISPLAY=:1.0XAUTHORITY=/run/user/1000/gdm/XauthoritySUDO_UID=1000TERM=xterm-256colorCOLORTERM=truecolorLOGNAME=rootUSER=rootLANG=en_US.UTF-8SUDO_COMMAND=/bin/bashHOME=/rootMAIL=/var/mail/rootSUDO_GID=1000SHELL=/bin/bash/tmp/most-arm5.elf
Source: most-arm5.elf, 6226.1.00005598df22f000.00005598df35d000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: most-arm5.elf, 6226.1.00007ffc95aaf000.00007ffc95ad0000.rw-.sdmp	Binary or memory string: qemu: %s: %s
Source: most-arm5.elf, 6226.1.00007ffc95aaf000.00007ffc95ad0000.rw-.sdmp	Binary or memory string: leqemu: %s: %s
Source: most-arm5.elf, 6226.1.00005598df22f000.00005598df35d000.rw-.sdmp	Binary or memory string: Urg.qemu.gdb.arm.sys.regs">
Source: most-arm5.elf, 6226.1.00005598df22f000.00005598df35d000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: most-arm5.elf, 6226.1.00007ffc95aaf000.00007ffc95ad0000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: most-arm5.elf, 6226.1.00005598df22f000.00005598df35d000.rw-.sdmp	Binary or memory string: rg.qemu.gdb.arm.sys.regs">

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	1 Scripting	Valid Accounts	Windows Management Instrumentation	1 Scripting	Path Interception	1 File Deletion	OS Credential Dumping	11 Security Software Discovery	Remote Services	Data from Local System	1 Encrypted Channel	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	Rootkit	LSASS Memory	Application Window Discovery	Remote Desktop Protocol	Data from Removable Media	1 Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service

Malware Configuration

⊘No configs have been found

Behavior Graph

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Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Number of created Files
Is malicious
Internet

Screenshots

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Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
most-arm5.elf	34%	Virustotal		Browse
most-arm5.elf	42%	ReversingLabs	Linux.Backdoor.Mirai

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Download Network PCAP: filtered – full

Contacted Domains

⊘No contacted domains info

World Map of Contacted IPs

No. of IPs < 25%
25% < No. of IPs < 50%
50% < No. of IPs < 75%
75% < No. of IPs

Public IPs

IP	Domain	Country	ASN	ASN Name	Malicious
34.249.145.219	unknown	United States	16509	AMAZON-02US	false
109.202.202.202	unknown	Switzerland	13030	INIT7CH	false
91.189.91.43	unknown	United Kingdom	41231	CANONICAL-ASGB	false
91.189.91.42	unknown	United Kingdom	41231	CANONICAL-ASGB	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
34.249.145.219	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	main_m68k.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	most-x86_64.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
109.202.202.202	kpLwzBouH4.elf	Get hash	malicious	Unknown	Browse	ch.archive.ubuntu.com/ubuntu/pool/main/f/firefox/firefox_92.0%2bbuild3-0ubuntu0.20.04.1_amd64.deb
91.189.91.43	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	main_x86.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	main_mips.elf	Get hash	malicious	Mirai	Browse
	main_m68k.elf	Get hash	malicious	Mirai	Browse
	main_mpsl.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
91.189.91.42	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	main_x86.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	main_mips.elf	Get hash	malicious	Mirai	Browse
	main_m68k.elf	Get hash	malicious	Mirai	Browse
	main_mpsl.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	tftp.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	main_x86.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	main_ppc.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	main_mips.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	main_m68k.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	main_mpsl.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
CANONICAL-ASGB	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	tftp.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	main_x86.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	main_ppc.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	main_mips.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	main_m68k.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	main_mpsl.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
INIT7CH	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	main_x86.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	main_mips.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	main_m68k.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	main_mpsl.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
AMAZON-02US	https://personalinjuryhehe.eversign.com/document/fa37b4043dd04552b8cdfbfaa049dbbf-feca2a09aaa242c5b6a068e3a46fb7d1/sign	Get hash	malicious	HTMLPhisher, Invisible JS, Tycoon2FA	Browse	108.139.47.37
	na.elf	Get hash	malicious	Prometei	Browse	34.249.145.219
	na.elf	Get hash	malicious	Prometei	Browse	13.213.51.196
	OC-8563 PURCHASE ORDER.exe	Get hash	malicious	FormBook	Browse	13.248.169.48
	Revised - Ohio police & fire pension fund 2025 Handbook18663.doc	Get hash	malicious	HTMLPhisher, Invisible JS, Tycoon2FA	Browse	99.83.148.19
	na.elf	Get hash	malicious	Prometei	Browse	13.213.51.196
	https://forms.fillout.com/t/nQmGcyH7Hnus	Get hash	malicious	Unknown	Browse	13.35.93.107
	FA-43-02-2025.pdf	Get hash	malicious	Unknown	Browse	13.225.63.72
	na.elf	Get hash	malicious	Prometei	Browse	34.249.145.219
	https://bvs36.sharefile.com/public/share/web-s382e175427a44399b98bd891fdf5920f	Get hash	malicious	HTMLPhisher, ReCaptcha Phish	Browse	76.223.1.166

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

⊘No created / dropped files found

Static File Info

General

File type:	ELF 32-bit LSB executable, ARM, version 1 (ARM), dynamically linked, interpreter /lib/ld-uClibc.so.0, stripped
Entropy (8bit):	6.017565420862735
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	most-arm5.elf
File size:	38'248 bytes
MD5:	f64bb639d4976d9619142099c36575eb
SHA1:	a1bb9a65cb0290fb92683af20333c11e0b16c4bc
SHA256:	457ac3463c32393c1ca5b86684c1aaa30f883746ca5e42cd5b41d5b0d85fb94e
SHA512:	dee0b9f85fedb27716027fcb08be64d9d3c52a7dbf274b4c3816d5cbf34aa608cb7e78f339d9b36a556e05633d6d3d3984c3507e7f00835b47b6a5627511ac1f
SSDEEP:	768:fOvZdQTF962Bn2sG5J9Kg4J0XSH2HE0sol1Hw3:fbF46nxG5JrCCE0E3
TLSH:	2103E855B8839A2BC1D1137ABB6E9B4D376173D4D2CF7713EA2407903ACA51F0C62E85
File Content Preview:	.ELF...a..........(.........4...p.......4. ...(.........4...4...4...................................................................................................................................................Q.td............................/lib/ld-uCl

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	ARM
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	ARM - ABI
ABI Version:	0
Entry Point Address:	0x91c8
Flags:	0x2
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	6
Section Header Offset:	37488
Section Header Size:	40
Number of Section Headers:	19
Header String Table Index:	18

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Link	Info	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0	0	0
.interp	PROGBITS	0x80f4	0xf4	0x14	0x0	0x2	A	0	0	1
.hash	HASH	0x8108	0x108	0x274	0x4	0x2	A	3	0	4
.dynsym	DYNSYM	0x837c	0x37c	0x580	0x10	0x2	A	4	1	4
.dynstr	STRTAB	0x88fc	0x8fc	0x2df	0x0	0x2	A	0	0	1
.rel.dyn	REL	0x8bdc	0xbdc	0x8	0x8	0x2	A	3	0	4
.rel.plt	REL	0x8be4	0xbe4	0x1f0	0x8	0x2	A	3	8	4
.init	PROGBITS	0x8dd4	0xdd4	0x18	0x0	0x6	AX	0	0	4
.plt	PROGBITS	0x8dec	0xdec	0x2fc	0x4	0x6	AX	0	0	4
.text	PROGBITS	0x90e8	0x10e8	0x6f3c	0x0	0x6	AX	0	0	4
.fini	PROGBITS	0x10024	0x8024	0x14	0x0	0x6	AX	0	0	4
.rodata	PROGBITS	0x10038	0x8038	0xebc	0x0	0x2	A	0	0	4
.ctors	PROGBITS	0x19000	0x9000	0x8	0x0	0x3	WA	0	0	4
.dtors	PROGBITS	0x19008	0x9008	0x8	0x0	0x3	WA	0	0	4
.dynamic	DYNAMIC	0x19014	0x9014	0xb8	0x8	0x3	WA	4	0	4
.got	PROGBITS	0x190cc	0x90cc	0x104	0x4	0x3	WA	0	0	4
.data	PROGBITS	0x191d0	0x91d0	0x24	0x0	0x3	WA	0	0	4
.bss	NOBITS	0x191f4	0x91f4	0xd0	0x0	0x3	WA	0	0	4
.shstrtab	STRTAB	0x0	0x91f4	0x7c	0x0	0x0		0	0	1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Prog Interpreter	Section Mappings
PHDR	0x34	0x8034	0x8034	0xc0	0xc0	2.1266	0x5	R E	0x4
INTERP	0xf4	0x80f4	0x80f4	0x14	0x14	3.6842	0x4	R	0x1	/lib/ld-uClibc.so.0	.interp
LOAD	0x0	0x8000	0x8000	0x8ef4	0x8ef4	6.1061	0x5	R E	0x8000		.interp .hash .dynsym .dynstr .rel.dyn .rel.plt .init .plt .text .fini .rodata
LOAD	0x9000	0x19000	0x19000	0x1f4	0x2c4	2.2874	0x6	RW	0x8000		.ctors .dtors .dynamic .got .data .bss
DYNAMIC	0x9014	0x19014	0x19014	0xb8	0xb8	1.9804	0x6	RW	0x4		.dynamic
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Dynamic Tags

Type	Meta	Value	Tag
DT_NEEDED	sharedlib	libpthread.so.0	0x1
DT_NEEDED	sharedlib	libc.so.0	0x1
DT_INIT	value	0x8dd4	0xc
DT_FINI	value	0x10024	0xd
DT_HASH	value	0x8108	0x4
DT_STRTAB	value	0x88fc	0x5
DT_SYMTAB	value	0x837c	0x6
DT_STRSZ	bytes	735	0xa
DT_SYMENT	bytes	16	0xb
DT_DEBUG	value	0x0	0x15
DT_PLTGOT	value	0x190cc	0x3
DT_PLTRELSZ	bytes	496	0x2
DT_PLTREL	pltrel	DT_REL	0x14
DT_JMPREL	value	0x8be4	0x17
DT_REL	value	0x8bdc	0x11
DT_RELSZ	bytes	8	0x12
DT_RELENT	bytes	8	0x13
DT_NULL	value	0x0	0x0

Symbols

Name	Section Name	Value	Size	Symbol Type	Symbol Bind	Symbol Visibility	Ndx
	.dynsym	0x0	0	NOTYPE	<unknown>	DEFAULT	SHN_UNDEF
_Jv_RegisterClasses	.dynsym	0x0	0	NOTYPE	<unknown>	DEFAULT	SHN_UNDEF
__aeabi_idiv0	.dynsym	0xff94	4	FUNC	<unknown>	DEFAULT	9
__aeabi_ldiv0	.dynsym	0xff94	4	FUNC	<unknown>	DEFAULT	9
__aeabi_uidiv	.dynsym	0xfcd4	0	FUNC	<unknown>	DEFAULT	9
__aeabi_uidivmod	.dynsym	0xfdcc	24	FUNC	<unknown>	DEFAULT	9
__bss_end__	.dynsym	0x192c4	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__bss_start	.dynsym	0x191f4	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__bss_start__	.dynsym	0x191f4	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__ctype_b	.dynsym	0x191f4	4	OBJECT	<unknown>	DEFAULT	19
__data_start	.dynsym	0x191d0	0	NOTYPE	<unknown>	DEFAULT	18
__deregister_frame_info	.dynsym	0x0	0	NOTYPE	<unknown>	DEFAULT	SHN_UNDEF
__div0	.dynsym	0xff94	4	FUNC	<unknown>	DEFAULT	9
__end__	.dynsym	0x192c4	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__errno_location	.dynsym	0x9034	16	FUNC	<unknown>	DEFAULT	SHN_UNDEF
__modsi3	.dynsym	0xfeb0	228	FUNC	<unknown>	DEFAULT	9
__muldi3	.dynsym	0xff98	80	FUNC	<unknown>	DEFAULT	9
__register_frame_info	.dynsym	0x0	0	NOTYPE	<unknown>	DEFAULT	SHN_UNDEF
__uClibc_main	.dynsym	0x8fb0	488	FUNC	<unknown>	DEFAULT	SHN_UNDEF
__udivsi3	.dynsym	0xfcd4	248	FUNC	<unknown>	DEFAULT	9
__umodsi3	.dynsym	0xfde4	204	FUNC	<unknown>	DEFAULT	9
_bss_end__	.dynsym	0x192c4	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
_edata	.dynsym	0x191f4	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
_end	.dynsym	0x192c4	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
_exit	.dynsym	0x9058	40	FUNC	<unknown>	DEFAULT	SHN_UNDEF
_fini	.dynsym	0x10024	4	FUNC	<unknown>	DEFAULT	10
_init	.dynsym	0x8dd4	4	FUNC	<unknown>	DEFAULT	7
_start	.dynsym	0x91c8	80	FUNC	<unknown>	DEFAULT	9
abort	.dynsym	0x8ee4	352	FUNC	<unknown>	DEFAULT	SHN_UNDEF
accept	.dynsym	0x8ef0	76	FUNC	<unknown>	DEFAULT	SHN_UNDEF
atoi	.dynsym	0x904c	12	FUNC	<unknown>	DEFAULT	SHN_UNDEF
bind	.dynsym	0x8f20	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
calloc	.dynsym	0x8efc	88	FUNC	<unknown>	DEFAULT	SHN_UNDEF
clock	.dynsym	0x907c	52	FUNC	<unknown>	DEFAULT	SHN_UNDEF
close	.dynsym	0x90c4	60	FUNC	<unknown>	DEFAULT	SHN_UNDEF
closedir	.dynsym	0x9094	196	FUNC	<unknown>	DEFAULT	SHN_UNDEF
connect	.dynsym	0x8e18	76	FUNC	<unknown>	DEFAULT	SHN_UNDEF
exit	.dynsym	0x9040	172	FUNC	<unknown>	DEFAULT	SHN_UNDEF
fclose	.dynsym	0x8fd4	448	FUNC	<unknown>	DEFAULT	SHN_UNDEF
fcntl	.dynsym	0x90a0	88	FUNC	<unknown>	DEFAULT	SHN_UNDEF
fgets	.dynsym	0x8e48	164	FUNC	<unknown>	DEFAULT	SHN_UNDEF
fopen	.dynsym	0x8fbc	12	FUNC	<unknown>	DEFAULT	SHN_UNDEF
fork	.dynsym	0x8fa4	452	FUNC	<unknown>	DEFAULT	SHN_UNDEF
free	.dynsym	0x90d0	288	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getpid	.dynsym	0x8e3c	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getppid	.dynsym	0x8fe0	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getsockname	.dynsym	0x90dc	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getsockopt	.dynsym	0x901c	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
inet_addr	.dynsym	0x8f2c	36	FUNC	<unknown>	DEFAULT	SHN_UNDEF
kill	.dynsym	0x8f14	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
listen	.dynsym	0x8f98	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
malloc	.dynsym	0x8e84	400	FUNC	<unknown>	DEFAULT	SHN_UNDEF
memcpy	.dynsym	0x8e60	4	FUNC	<unknown>	DEFAULT	SHN_UNDEF
memmove	.dynsym	0x0	4	FUNC	<unknown>	DEFAULT	SHN_UNDEF
memset	.dynsym	0x8fc8	156	FUNC	<unknown>	DEFAULT	SHN_UNDEF
open	.dynsym	0x9070	88	FUNC	<unknown>	DEFAULT	SHN_UNDEF
opendir	.dynsym	0x8ff8	264	FUNC	<unknown>	DEFAULT	SHN_UNDEF
prctl	.dynsym	0x8e54	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
printf	.dynsym	0x8e00	76	FUNC	<unknown>	DEFAULT	SHN_UNDEF
pthread_create	.dynsym	0x8e24	208	FUNC	<unknown>	DEFAULT	SHN_UNDEF
pthread_exit	.dynsym	0x8e30	8	FUNC	<unknown>	DEFAULT	SHN_UNDEF
pthread_join	.dynsym	0x90b8	508	FUNC	<unknown>	DEFAULT	SHN_UNDEF
puts	.dynsym	0x8e78	200	FUNC	<unknown>	DEFAULT	SHN_UNDEF
rand	.dynsym	0x8f50	4	FUNC	<unknown>	DEFAULT	SHN_UNDEF
read	.dynsym	0x8f5c	76	FUNC	<unknown>	DEFAULT	SHN_UNDEF
readdir	.dynsym	0x8ecc	224	FUNC	<unknown>	DEFAULT	SHN_UNDEF
readlink	.dynsym	0x8e6c	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
realloc	.dynsym	0x8f80	312	FUNC	<unknown>	DEFAULT	SHN_UNDEF
recv	.dynsym	0x8e0c	84	FUNC	<unknown>	DEFAULT	SHN_UNDEF
recvfrom	.dynsym	0x8ea8	100	FUNC	<unknown>	DEFAULT	SHN_UNDEF
remove	.dynsym	0x8e90	72	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sched_yield	.dynsym	0x90ac	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
select	.dynsym	0x8ec0	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
send	.dynsym	0x8ed8	84	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sendto	.dynsym	0x8f74	100	FUNC	<unknown>	DEFAULT	SHN_UNDEF
setsid	.dynsym	0x9088	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
setsockopt	.dynsym	0x8f38	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sleep	.dynsym	0x8e9c	420	FUNC	<unknown>	DEFAULT	SHN_UNDEF
socket	.dynsym	0x8eb4	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sprintf	.dynsym	0x9010	52	FUNC	<unknown>	DEFAULT	SHN_UNDEF
stat	.dynsym	0x9028	80	FUNC	<unknown>	DEFAULT	SHN_UNDEF
strcmp	.dynsym	0x9004	28	FUNC	<unknown>	DEFAULT	SHN_UNDEF
strlen	.dynsym	0x9064	96	FUNC	<unknown>	DEFAULT	SHN_UNDEF
strstr	.dynsym	0x8f44	248	FUNC	<unknown>	DEFAULT	SHN_UNDEF
strtok	.dynsym	0x8f8c	36	FUNC	<unknown>	DEFAULT	SHN_UNDEF
time	.dynsym	0x8fec	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
unlink	.dynsym	0x8f68	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
write	.dynsym	0x8f08	76	FUNC	<unknown>	DEFAULT	SHN_UNDEF

Network Behavior

Download Network PCAP: filtered – full

Network Port Distribution

Total Packets: 11
• 443 (HTTPS)
• 80 (HTTP)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Apr 1, 2025 15:47:58.576495886 CEST	43928	443	192.168.2.23	91.189.91.42
Apr 1, 2025 15:48:04.207731962 CEST	42836	443	192.168.2.23	91.189.91.43
Apr 1, 2025 15:48:05.487653017 CEST	42516	80	192.168.2.23	109.202.202.202
Apr 1, 2025 15:48:18.797696114 CEST	43928	443	192.168.2.23	91.189.91.42
Apr 1, 2025 15:48:19.962529898 CEST	39250	443	192.168.2.23	34.249.145.219
Apr 1, 2025 15:48:19.962580919 CEST	443	39250	34.249.145.219	192.168.2.23
Apr 1, 2025 15:48:19.962639093 CEST	39250	443	192.168.2.23	34.249.145.219
Apr 1, 2025 15:48:19.962965012 CEST	39250	443	192.168.2.23	34.249.145.219
Apr 1, 2025 15:48:19.962975979 CEST	443	39250	34.249.145.219	192.168.2.23
Apr 1, 2025 15:48:31.084008932 CEST	42836	443	192.168.2.23	91.189.91.43
Apr 1, 2025 15:48:35.179439068 CEST	42516	80	192.168.2.23	109.202.202.202
Apr 1, 2025 15:48:59.752279043 CEST	43928	443	192.168.2.23	91.189.91.42
Apr 1, 2025 15:49:19.954735994 CEST	39250	443	192.168.2.23	34.249.145.219
Apr 1, 2025 15:49:19.996268988 CEST	443	39250	34.249.145.219	192.168.2.23

System Behavior

Analysis Process: most-arm5.elf PID: 6226, Parent PID: 6149

General

Start time (UTC):	13:47:58
Start date (UTC):	01/04/2025
Path:	/tmp/most-arm5.elf
Arguments:	/tmp/most-arm5.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

File Activities

File Opened

File Read

Process Activities

Thread Sleep

System Activities

Query System Information (uname)

Chronological Activities

Analysis Process: dash PID: 6287, Parent PID: 4331

General

Start time (UTC):	13:49:19
Start date (UTC):	01/04/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6287, Parent PID: 4331

General

Start time (UTC):	13:49:19
Start date (UTC):	01/04/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.W59ZJ0nwFs /tmp/tmp.jSioS4r1x7 /tmp/tmp.R4qkCERNrr
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

File Activities

File Opened

File Deleted

File Read

Chronological Activities

Analysis Process: dash PID: 6288, Parent PID: 4331

General

Start time (UTC):	13:49:19
Start date (UTC):	01/04/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6288, Parent PID: 4331

General

Start time (UTC):	13:49:19
Start date (UTC):	01/04/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.W59ZJ0nwFs /tmp/tmp.jSioS4r1x7 /tmp/tmp.R4qkCERNrr
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Description:	This technique has been deprecated. Please use Command and Scripting Interpreter where appropriate.
Tactics:	Defense Evasion, Execution
Data Sources:
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may delete files left behind by the actions of their intrusion activity. Malware, tools, or other non-native files dropped or created on a system by an adversary (ex: Ingress Tool Transfer ) may leave traces to indicate to what was done within a network and how. Removal of these files can occur during an intrusion, or as part of a post-intrusion process to minimize the adversary's footprint.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Deletion
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Firewall: Firewall Enumeration, Firewall: Firewall Metadata, Process: OS API Execution, Process: Process Creation
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ a known encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Despite the use of a secure algorithm, these implementations may be vulnerable to reverse engineering if secret keys are encoded and/or generated within malware samples/configuration files.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using OSI application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report most-arm5.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Runtime Messages

Process Tree

Yara Signatures

Initial Sample

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Spreading

Networking

System Summary

Persistence and Installation Behavior

Malware Analysis System Evasion

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

World Map of Contacted IPs

Public IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

Static ELF Info

ELF header

Sections

Program Segments

Dynamic Tags

Symbols

Network Behavior

Network Port Distribution

TCP Packets

System Behavior

Analysis Process: most-arm5.elf PID: 6226, Parent PID: 6149

General

File Activities

File Opened

File Read

Process Activities

Thread Sleep

System Activities

Query System Information (uname)

Chronological Activities

Analysis Process: dash PID: 6287, Parent PID: 4331

General

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6287, Parent PID: 4331

General

File Activities

File Opened

File Deleted

Linux Analysis Report
most-arm5.elf