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Linux Analysis Report
arm5.elf

Overview

General Information

Sample name:	arm5.elf
Analysis ID:	1650542
MD5:	1cee70028aecd73152a2ab24760149d4
SHA1:	116998b90a28924cba94b8f297c28c74a4117f79
SHA256:	78e12f03efa6e83a62c44659be6c20d648911c6533539aeef901e9909ebb39c2
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

Sample has stripped symbol table

Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)

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:	1650542
Start date and time:	2025-03-27 19:58:26 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 10m 39s
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:	arm5.elf
Detection:	MAL
Classification:	mal56.linELF@0/0@2/0
Cookbook Comments:	Analysis time extended to 480s due to sleep detection in submitted sample

Warnings

Max analysis timeout: 600s exceeded, the analysis took too long

Runtime Messages

Command:	/tmp/arm5.elf
PID:	5428
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

arm5.elf (PID: 5428, Parent: 5353, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/arm5.elf

cleanup

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
arm5.elf	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x7dec:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7e00:$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 0x7e14:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7e28:$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 0x7e3c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7e50:$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 0x7e64:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7e78:$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 0x7e8c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7ea0:$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 0x7eb4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7ec8:$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 0x7edc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7ef0:$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 0x7f04:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7f18:$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 0x7f2c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7f40:$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 0x7f54:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7f68:$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 0x7f7c:$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
5428.1.00007f902c027000.00007f902c028000.rw-.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1c:$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 0x30:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x44:$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 0x58:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x6c:$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 0x80:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x94:$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 0xa8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xbc:$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 0xd0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xe4:$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 0xf8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x10c:$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 0x120:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x134:$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 0x148:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x15c:$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 0x170:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x184:$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 0x198:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
5428.1.00007f902c017000.00007f902c020000.r-x.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x7dec:$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 0x7e00:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7e14:$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 0x7e28:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7e3c:$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 0x7e50:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7e64:$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 0x7e78:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7e8c:$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 0x7ea0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7eb4:$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 0x7ec8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7edc:$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 0x7ef0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7f04:$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 0x7f18:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7f2c:$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 0x7f40:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7f54:$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 0x7f68:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7f7c:$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: arm5.elf PID: 5428	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x11f63:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11f77:$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 0x11f8b:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11f9f:$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 0x11fb3:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11fc7:$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 0x11fdb:$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
• Networking
• System Summary
• Malware Analysis System Evasion

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: arm5.elf	ReversingLabs: Detection: 41%
Source: arm5.elf	Virustotal: Detection: 45%			Perma Link

Source: global traffic

TCP traffic: 192.168.2.13:48202 -> 185.125.190.26:443

Source: unknown	TCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknown	TCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1

Source: global traffic

DNS traffic detected: DNS query: daisy.ubuntu.com

Source: unknown

Network traffic detected: HTTP traffic on port 48202 -> 443

System Summary

Malicious sample detected (through community Yara rule)

Source: arm5.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 5428.1.00007f902c027000.00007f902c028000.rw-.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 5428.1.00007f902c017000.00007f902c020000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: arm5.elf PID: 5428, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown

Source: ELF static info symbol of initial sample

.symtab present: no

Source: 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: 5428.1.00007f902c027000.00007f902c028000.rw-.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: 5428.1.00007f902c017000.00007f902c020000.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: arm5.elf PID: 5428, 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@2/0

Source: /tmp/arm5.elf (PID: 5428)

Queries kernel information via 'uname':

Jump to behavior

Source: arm5.elf, 5428.1.00007ffc11acf000.00007ffc11af0000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/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/arm5.elf
Source: arm5.elf, 5428.1.000055a0ce1c4000.000055a0ce2f2000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: arm5.elf, 5428.1.00007ffc11acf000.00007ffc11af0000.rw-.sdmp	Binary or memory string: qemu: %s: %s
Source: arm5.elf, 5428.1.00007ffc11acf000.00007ffc11af0000.rw-.sdmp	Binary or memory string: leqemu: %s: %s
Source: arm5.elf, 5428.1.000055a0ce1c4000.000055a0ce2f2000.rw-.sdmp	Binary or memory string: Urg.qemu.gdb.arm.sys.regs">
Source: arm5.elf, 5428.1.000055a0ce1c4000.000055a0ce2f2000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: arm5.elf, 5428.1.00007ffc11acf000.00007ffc11af0000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: arm5.elf, 5428.1.000055a0ce1c4000.000055a0ce2f2000.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	Acquire Infrastructure	Valid Accounts	Windows Management Instrumentation	Path Interception	Path Interception	Direct Volume Access	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 Non-Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	Obfuscated Files or Information	Security Account Manager	Query Registry	SMB/Windows Admin Shares	Data from Network Shared Drive	2 Application Layer Protocol	Automated Exfiltration	Data Encrypted for Impact

Malware Configuration

⊘No configs have been found

Behavior Graph

Hide Legend

Legend:

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

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
arm5.elf	42%	ReversingLabs	Linux.Trojan.Mirai
arm5.elf	45%	Virustotal		Browse

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Download Network PCAP: filtered – full

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
daisy.ubuntu.com	162.213.35.25	true	false		high

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	Flag	ASN	ASN Name	Malicious
185.125.190.26	unknown	United Kingdom		41231	CANONICAL-ASGB	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link
185.125.190.26	x86.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	SecuriteInfo.com.ELF.Mirai-AXV.27459.929.elf	Get hash	malicious	Unknown	Browse
	arm7.elf	Get hash	malicious	Unknown	Browse
	arm5.elf	Get hash	malicious	Unknown	Browse
	mips.elf	Get hash	malicious	Unknown	Browse
	arm.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	SecuriteInfo.com.Linux.Mirai.4306.30063.19032.elf	Get hash	malicious	Unknown	Browse

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	sshd.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	sshd.elf	Get hash	malicious	Gafgyt	Browse	162.213.35.24
	cron.elf	Get hash	malicious	Gafgyt	Browse	162.213.35.25
	SecuriteInfo.com.ELF.Mirai-AXV.27459.929.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	SecuriteInfo.com.Linux.Mirai.4306.7848.16619.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	SecuriteInfo.com.Linux.Mirai.2522.20371.24695.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	ntpd.elf	Get hash	malicious	Gafgyt	Browse	162.213.35.24
	pftp.elf	Get hash	malicious	Gafgyt	Browse	162.213.35.24
	apache2.elf	Get hash	malicious	Gafgyt	Browse	162.213.35.25
	ftp.elf	Get hash	malicious	Gafgyt	Browse	162.213.35.25

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
	x86.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	debug.dbg.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	185.125.190.26
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	185.125.190.26
	SecuriteInfo.com.ELF.Mirai-AXV.27459.929.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	SecuriteInfo.com.Linux.Mirai.4306.4180.25704.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	SecuriteInfo.com.Linux.Mirai.2522.31389.24681.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42

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, EABI4 version 1 (SYSV), dynamically linked, interpreter /lib/ld-uClibc.so.0, stripped
Entropy (8bit):	6.04117207399579
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	arm5.elf
File size:	35'736 bytes
MD5:	1cee70028aecd73152a2ab24760149d4
SHA1:	116998b90a28924cba94b8f297c28c74a4117f79
SHA256:	78e12f03efa6e83a62c44659be6c20d648911c6533539aeef901e9909ebb39c2
SHA512:	ca28c9ea5b3e2c5402a1c333da42d473cb94fe0aa3a53224143be77217be74749be98f8f6a25546368577cff533394de237dfd9647272190f08b5d0c05904559
SSDEEP:	768:O3HJACrU3F72vZLaQ3SR3m32ysclnldHtk9VHhvGcnYKl0+24HU+1EsJfwu:O3HJACrU3iaQ2RCP0ZZBnzdW
TLSH:	31F2C694B8824A37C5D8037AB76E16CD336073EA92CBB307C9105B647E8591F0D63F99
File Content Preview:	.ELF..............(.........4...........4. ...(.........4...4...4...................................................................H...H...............L...L...L.......<.......................X...................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:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x8c94
Flags:	0x4000002
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	6
Section Header Offset:	34976
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	0x190	0x4	0x2	A	3	0	4
.dynsym	DYNSYM	0x8298	0x298	0x3d0	0x10	0x2	A	4	1	4
.dynstr	STRTAB	0x8668	0x668	0x1d9	0x0	0x2	A	0	0	1
.rel.plt	REL	0x8844	0x844	0x188	0x8	0x2	A	3	7	4
.init	PROGBITS	0x89cc	0x9cc	0x10	0x0	0x6	AX	0	0	4
.plt	PROGBITS	0x89dc	0x9dc	0x260	0x4	0x6	AX	0	0	4
.text	PROGBITS	0x8c3c	0xc3c	0x70c4	0x0	0x6	AX	0	0	4
.fini	PROGBITS	0xfd00	0x7d00	0x10	0x0	0x6	AX	0	0	4
.rodata	PROGBITS	0xfd10	0x7d10	0x938	0x0	0x2	A	0	0	4
.init_array	INIT_ARRAY	0x1864c	0x864c	0x4	0x0	0x3	WA	0	0	4
.fini_array	FINI_ARRAY	0x18650	0x8650	0x4	0x0	0x3	WA	0	0	4
.dynamic	DYNAMIC	0x18658	0x8658	0xb8	0x8	0x3	WA	4	0	4
.got	PROGBITS	0x18710	0x8710	0xd0	0x4	0x3	WA	0	0	4
.data	PROGBITS	0x187e0	0x87e0	0x1c	0x0	0x3	WA	0	0	4
.bss	NOBITS	0x187fc	0x87fc	0x8c	0x0	0x3	WA	0	0	4
.ARM.attributes	ARM_ATTRIBUTES	0x0	0x87fc	0x16	0x0	0x0		0	0	1
.shstrtab	STRTAB	0x0	0x8812	0x8d	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	2.0637	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	0x8648	0x8648	6.0925	0x5	R E	0x8000		.interp .hash .dynsym .dynstr .rel.plt .init .plt .text .fini .rodata
LOAD	0x864c	0x1864c	0x1864c	0x1b0	0x23c	2.3757	0x6	RW	0x8000		.init_array .fini_array .dynamic .got .data .bss
DYNAMIC	0x0	0x0	0x18658	0x0	0x0	0.0000	0x6	RW	0x4
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Dynamic Tags

Type	Meta	Value	Tag
DT_NEEDED	sharedlib	libc.so.0	0x1
DT_INIT	value	0x89cc	0xc
DT_FINI	value	0xfd00	0xd
DT_INIT_ARRAY	value	0x1864c	0x19
DT_INIT_ARRAYSZ	bytes	4	0x1b
DT_FINI_ARRAY	value	0x18650	0x1a
DT_FINI_ARRAYSZ	bytes	4	0x1c
DT_HASH	value	0x8108	0x4
DT_STRTAB	value	0x8668	0x5
DT_SYMTAB	value	0x8298	0x6
DT_STRSZ	bytes	473	0xa
DT_SYMENT	bytes	16	0xb
DT_DEBUG	value	0x0	0x15
DT_PLTGOT	value	0x18710	0x3
DT_PLTRELSZ	bytes	392	0x2
DT_PLTREL	pltrel	DT_REL	0x14
DT_JMPREL	value	0x8844	0x17
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
__bss_end__	.dynsym	0x18888	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__bss_start	.dynsym	0x187fc	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__bss_start__	.dynsym	0x187fc	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__data_start	.dynsym	0x187e0	0	NOTYPE	<unknown>	DEFAULT	17
__end__	.dynsym	0x18888	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__errno_location	.dynsym	0x8ba0	32	FUNC	<unknown>	DEFAULT	SHN_UNDEF
__exidx_end	.dynsym	0x10648	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__exidx_start	.dynsym	0x10648	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__uClibc_main	.dynsym	0x8b58	848	FUNC	<unknown>	DEFAULT	SHN_UNDEF
_bss_end__	.dynsym	0x18888	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
_edata	.dynsym	0x187fc	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
_end	.dynsym	0x18888	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
_start	.dynsym	0x8c94	80	FUNC	<unknown>	DEFAULT	8
abort	.dynsym	0x8aa4	296	FUNC	<unknown>	DEFAULT	SHN_UNDEF
accept	.dynsym	0x8ab0	116	FUNC	<unknown>	DEFAULT	SHN_UNDEF
bind	.dynsym	0x8ae0	68	FUNC	<unknown>	DEFAULT	SHN_UNDEF
calloc	.dynsym	0x8abc	320	FUNC	<unknown>	DEFAULT	SHN_UNDEF
clock	.dynsym	0x8bd0	52	FUNC	<unknown>	DEFAULT	SHN_UNDEF
close	.dynsym	0x8c00	100	FUNC	<unknown>	DEFAULT	SHN_UNDEF
closedir	.dynsym	0x8be8	272	FUNC	<unknown>	DEFAULT	SHN_UNDEF
connect	.dynsym	0x89fc	116	FUNC	<unknown>	DEFAULT	SHN_UNDEF
exit	.dynsym	0x8bac	196	FUNC	<unknown>	DEFAULT	SHN_UNDEF
fcntl	.dynsym	0x8bf4	244	FUNC	<unknown>	DEFAULT	SHN_UNDEF
fork	.dynsym	0x8b4c	972	FUNC	<unknown>	DEFAULT	SHN_UNDEF
free	.dynsym	0x8c18	572	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getpid	.dynsym	0x8a14	72	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getppid	.dynsym	0x8b70	20	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getsockname	.dynsym	0x8c30	68	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getsockopt	.dynsym	0x8b94	72	FUNC	<unknown>	DEFAULT	SHN_UNDEF
inet_addr	.dynsym	0x8aec	40	FUNC	<unknown>	DEFAULT	SHN_UNDEF
kill	.dynsym	0x8ad4	56	FUNC	<unknown>	DEFAULT	SHN_UNDEF
listen	.dynsym	0x8b40	64	FUNC	<unknown>	DEFAULT	SHN_UNDEF
malloc	.dynsym	0x8a44	2360	FUNC	<unknown>	DEFAULT	SHN_UNDEF
memcpy	.dynsym	0x8a2c	4	FUNC	<unknown>	DEFAULT	SHN_UNDEF
memset	.dynsym	0x8b64	156	FUNC	<unknown>	DEFAULT	SHN_UNDEF
open	.dynsym	0x8bc4	100	FUNC	<unknown>	DEFAULT	SHN_UNDEF
opendir	.dynsym	0x8b88	196	FUNC	<unknown>	DEFAULT	SHN_UNDEF
prctl	.dynsym	0x8a20	68	FUNC	<unknown>	DEFAULT	SHN_UNDEF
raise	.dynsym	0x8c0c	240	FUNC	<unknown>	DEFAULT	SHN_UNDEF
rand	.dynsym	0x8b04	24	FUNC	<unknown>	DEFAULT	SHN_UNDEF
read	.dynsym	0x8b1c	100	FUNC	<unknown>	DEFAULT	SHN_UNDEF
readdir	.dynsym	0x8a80	232	FUNC	<unknown>	DEFAULT	SHN_UNDEF
readlink	.dynsym	0x8a38	64	FUNC	<unknown>	DEFAULT	SHN_UNDEF
realloc	.dynsym	0x8b34	960	FUNC	<unknown>	DEFAULT	SHN_UNDEF
recv	.dynsym	0x89f0	112	FUNC	<unknown>	DEFAULT	SHN_UNDEF
recvfrom	.dynsym	0x8a5c	136	FUNC	<unknown>	DEFAULT	SHN_UNDEF
select	.dynsym	0x8a74	132	FUNC	<unknown>	DEFAULT	SHN_UNDEF
send	.dynsym	0x8a98	112	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sendto	.dynsym	0x8b28	136	FUNC	<unknown>	DEFAULT	SHN_UNDEF
setsid	.dynsym	0x8bdc	64	FUNC	<unknown>	DEFAULT	SHN_UNDEF
setsockopt	.dynsym	0x8af8	72	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sigaddset	.dynsym	0x8a8c	80	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sigemptyset	.dynsym	0x8a08	20	FUNC	<unknown>	DEFAULT	SHN_UNDEF
signal	.dynsym	0x8b10	196	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sigprocmask	.dynsym	0x8c24	140	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sleep	.dynsym	0x8a50	272	FUNC	<unknown>	DEFAULT	SHN_UNDEF
socket	.dynsym	0x8a68	68	FUNC	<unknown>	DEFAULT	SHN_UNDEF
strlen	.dynsym	0x8bb8	96	FUNC	<unknown>	DEFAULT	SHN_UNDEF
time	.dynsym	0x8b7c	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
write	.dynsym	0x8ac8	100	FUNC	<unknown>	DEFAULT	SHN_UNDEF

Network Behavior

Download Network PCAP: filtered – full

Network Port Distribution

Total Packets: 4
• 443 (HTTPS)
• 53 (DNS)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 27, 2025 19:59:29.277097940 CET	48202	443	192.168.2.13	185.125.190.26
Mar 27, 2025 20:00:00.765182972 CET	48202	443	192.168.2.13	185.125.190.26

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 27, 2025 20:02:03.186990976 CET	49810	53	192.168.2.13	1.1.1.1
Mar 27, 2025 20:02:03.187051058 CET	34647	53	192.168.2.13	1.1.1.1
Mar 27, 2025 20:02:03.270061016 CET	53	34647	1.1.1.1	192.168.2.13
Mar 27, 2025 20:02:03.270088911 CET	53	49810	1.1.1.1	192.168.2.13

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Mar 27, 2025 20:02:03.186990976 CET	192.168.2.13	1.1.1.1	0x7bc0	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Mar 27, 2025 20:02:03.187051058 CET	192.168.2.13	1.1.1.1	0x2a0f	Standard query (0)	daisy.ubuntu.com	28	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Mar 27, 2025 20:02:03.270088911 CET	1.1.1.1	192.168.2.13	0x7bc0	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false
Mar 27, 2025 20:02:03.270088911 CET	1.1.1.1	192.168.2.13	0x7bc0	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: arm5.elf PID: 5428, Parent PID: 5353

General

Start time (UTC):	18:59:17
Start date (UTC):	27/03/2025
Path:	/tmp/arm5.elf
Arguments:	/tmp/arm5.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

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 use an OSI non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Network, 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 arm5.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

Runtime Messages

Process Tree

Yara Signatures

Initial Sample

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Malware Analysis System Evasion

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

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

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: arm5.elf PID: 5428, Parent PID: 5353

General

File Activities

File Opened

File Read

Process Activities

Thread Sleep

System Activities

Query System Information (uname)

Chronological Activities

Linux Analysis Report
arm5.elf