Edit tour

Linux Analysis Report
arm5.elf

Overview

General Information

Sample name:	arm5.elf
Analysis ID:	1582200
MD5:	664729a8f790ed3609344ebbfd6c2634
SHA1:	7ad73e2e8fbf1d820302b28f917d2e79e01757b9
SHA256:	1cdde126fe8ec5b3418ec4085fcc50a8a4fa8d3a66988ed8ed4d2daae82f5ca2
Tags:	elfMiraiuser-abuse_ch
Infos:

Detection

Score:	56
Range:	0 - 100
Whitelisted:	false

Signatures

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

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:	41.0.0 Charoite
Analysis ID:	1582200
Start date and time:	2024-12-30 03:52:03 +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
VT rate limit hit for: arm5.elf

Runtime Messages

Command:	/tmp/arm5.elf
PID:	5516
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: 5516, Parent: 5435, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/arm5.elf

cleanup

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
arm5.elf	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x9134:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9148:$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 0x915c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9170:$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 0x9184:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9198:$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 0x91ac:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x91c0:$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 0x91d4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x91e8:$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 0x91fc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9210:$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 0x9224:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9238:$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 0x924c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9260:$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 0x9274:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9288:$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 0x929c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x92b0:$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 0x92c4:$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
5516.1.00007f2390028000.00007f2390029000.rw-.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	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 0x1ac:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1c0:$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 0x1d4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1e8:$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 0x1fc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x210:$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 0x224:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x238:$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 0x24c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x260:$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 0x274:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x288:$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 0x29c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2b0:$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 0x2c4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
5516.1.00007f2390017000.00007f2390021000.r-x.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x9134:$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 0x9148:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x915c:$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 0x9170:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9184:$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 0x9198:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x91ac:$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 0x91c0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x91d4:$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 0x91e8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x91fc:$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 0x9210:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9224:$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 0x9238:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x924c:$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 0x9260:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9274:$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 0x9288:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x929c:$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 0x92b0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x92c4:$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: 5516	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0xf0ab:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf0bf:$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 0xf0d3:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf0e7:$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 0xf0fb:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf10f:$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 0xf123:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf137:$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 0xf14b:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf15f:$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 0xf173:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf187:$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 0xf19b:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf1af:$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 0xf1c3:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf1d7:$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 0xf1eb:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf1ff:$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 0xf213:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf227:$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 0xf23b:$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

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: arm5.elf

ReversingLabs: Detection: 42%

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

System Summary

Malicious sample detected (through community Yara rule)

Source: arm5.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 5516.1.00007f2390028000.00007f2390029000.rw-.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 5516.1.00007f2390017000.00007f2390021000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: arm5.elf PID: 5516, 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: 5516.1.00007f2390028000.00007f2390029000.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: 5516.1.00007f2390017000.00007f2390021000.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: 5516, 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: 5516)

Queries kernel information via 'uname':

Jump to behavior

Source: arm5.elf, 5516.1.00007ffd674a2000.00007ffd674c3000.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, 5516.1.000055d2c93ce000.000055d2c94fc000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: arm5.elf, 5516.1.00007ffd674a2000.00007ffd674c3000.rw-.sdmp	Binary or memory string: qemu: %s: %s
Source: arm5.elf, 5516.1.00007ffd674a2000.00007ffd674c3000.rw-.sdmp	Binary or memory string: leqemu: %s: %s
Source: arm5.elf, 5516.1.000055d2c93ce000.000055d2c94fc000.rw-.sdmp	Binary or memory string: Urg.qemu.gdb.arm.sys.regs">
Source: arm5.elf, 5516.1.000055d2c93ce000.000055d2c94fc000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: arm5.elf, 5516.1.00007ffd674a2000.00007ffd674c3000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: arm5.elf, 5516.1.000055d2c93ce000.000055d2c94fc000.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 Non-Application Layer Protocol	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

Hide Legend

Legend:

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

Screenshots

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
arm5.elf	42%	ReversingLabs	Linux.Trojan.Mirai

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

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 contacted IP infos

Joe Sandbox View / Context

IPs

⊘No context

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	debug.dbg.elf	Get hash	malicious	Mirai, Okiru	Browse	162.213.35.25
	rebirth.mips.elf	Get hash	malicious	Gafgyt	Browse	162.213.35.25
	rebirth.arm6.elf	Get hash	malicious	Gafgyt	Browse	162.213.35.24
	rebirth.spc.elf	Get hash	malicious	Gafgyt	Browse	162.213.35.25
	.Sarm6.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	arm5.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	woega6.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	rebirth.arm5.elf	Get hash	malicious	Gafgyt	Browse	162.213.35.24
	rebirth.x86.elf	Get hash	malicious	Gafgyt	Browse	162.213.35.25

ASNs

⊘No context

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):	6.011339469006242
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	arm5.elf
File size:	40'708 bytes
MD5:	664729a8f790ed3609344ebbfd6c2634
SHA1:	7ad73e2e8fbf1d820302b28f917d2e79e01757b9
SHA256:	1cdde126fe8ec5b3418ec4085fcc50a8a4fa8d3a66988ed8ed4d2daae82f5ca2
SHA512:	a4f9e34fcc7811ed0655c910f170ed257741ef1f63022b4aa76fd0f80a84298b83a4ff438a6282698b7c2e23692b37a8bd92fe66cb0ca698ee6ef6153c28e0ff
SSDEEP:	768:/HajYnbcVMG5JG6gwKCDdcEv/OCAoKacv9riizQmY3EMh8ZheOofOwn:fHbXG5JZZKCZH3vKx470Mh8DeVn
TLSH:	D903E751B8825A27C2E1137AB6BE5A8E376077EDC2CFB217D8618B107AD251F0D63F41
File Content Preview:	.ELF...a..........(.....0...4...4.......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:	0x8f30
Flags:	0x2
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	6
Section Header Offset:	39988
Section Header Size:	40
Number of Section Headers:	18
Header String Table Index:	17

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	0x238	0x4	0x2	A	3	0	4
.dynsym	DYNSYM	0x8340	0x340	0x490	0x10	0x2	A	4	1	4
.dynstr	STRTAB	0x87d0	0x7d0	0x242	0x0	0x2	A	0	0	1
.rel.plt	REL	0x8a14	0xa14	0x1a0	0x8	0x2	A	3	7	4
.init	PROGBITS	0x8bb4	0xbb4	0x18	0x0	0x6	AX	0	0	4
.plt	PROGBITS	0x8bcc	0xbcc	0x284	0x4	0x6	AX	0	0	4
.text	PROGBITS	0x8e50	0xe50	0x81e0	0x0	0x6	AX	0	0	4
.fini	PROGBITS	0x11030	0x9030	0x14	0x0	0x6	AX	0	0	4
.rodata	PROGBITS	0x11044	0x9044	0x9cc	0x0	0x2	A	0	0	4
.ctors	PROGBITS	0x19a14	0x9a14	0x8	0x0	0x3	WA	0	0	4
.dtors	PROGBITS	0x19a1c	0x9a1c	0x8	0x0	0x3	WA	0	0	4
.dynamic	DYNAMIC	0x19a28	0x9a28	0x98	0x8	0x3	WA	4	0	4
.got	PROGBITS	0x19ac0	0x9ac0	0xdc	0x4	0x3	WA	0	0	4
.data	PROGBITS	0x19b9c	0x9b9c	0x24	0x0	0x3	WA	0	0	4
.bss	NOBITS	0x19bc0	0x9bc0	0xe8	0x0	0x3	WA	0	0	4
.shstrtab	STRTAB	0x0	0x9bc0	0x73	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	2.2460	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	0x9a10	0x9a10	6.0558	0x5	R E	0x8000		.interp .hash .dynsym .dynstr .rel.plt .init .plt .text .fini .rodata
LOAD	0x9a14	0x19a14	0x19a14	0x1ac	0x294	2.3039	0x6	RW	0x8000		.ctors .dtors .dynamic .got .data .bss
DYNAMIC	0x9a28	0x19a28	0x19a28	0x98	0x98	1.8984	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	libc.so.0	0x1
DT_INIT	value	0x8bb4	0xc
DT_FINI	value	0x11030	0xd
DT_HASH	value	0x8108	0x4
DT_STRTAB	value	0x87d0	0x5
DT_SYMTAB	value	0x8340	0x6
DT_STRSZ	bytes	578	0xa
DT_SYMENT	bytes	16	0xb
DT_DEBUG	value	0x0	0x15
DT_PLTGOT	value	0x19ac0	0x3
DT_PLTRELSZ	bytes	416	0x2
DT_PLTREL	pltrel	DT_REL	0x14
DT_JMPREL	value	0x8a14	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
__aeabi_idiv0	.dynsym	0x10fa0	4	FUNC	<unknown>	DEFAULT	8
__aeabi_ldiv0	.dynsym	0x10fa0	4	FUNC	<unknown>	DEFAULT	8
__aeabi_uidiv	.dynsym	0x10ce0	0	FUNC	<unknown>	DEFAULT	8
__aeabi_uidivmod	.dynsym	0x10dd8	24	FUNC	<unknown>	DEFAULT	8
__bss_end__	.dynsym	0x19ca8	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__bss_start	.dynsym	0x19bc0	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__bss_start__	.dynsym	0x19bc0	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__data_start	.dynsym	0x19b9c	0	NOTYPE	<unknown>	DEFAULT	17
__div0	.dynsym	0x10fa0	4	FUNC	<unknown>	DEFAULT	8
__end__	.dynsym	0x19ca8	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__errno_location	.dynsym	0x8db4	32	FUNC	<unknown>	DEFAULT	SHN_UNDEF
__modsi3	.dynsym	0x10ebc	228	FUNC	<unknown>	DEFAULT	8
__muldi3	.dynsym	0x10fa4	80	FUNC	<unknown>	DEFAULT	8
__uClibc_main	.dynsym	0x8d54	488	FUNC	<unknown>	DEFAULT	SHN_UNDEF
__udivsi3	.dynsym	0x10ce0	248	FUNC	<unknown>	DEFAULT	8
__umodsi3	.dynsym	0x10df0	204	FUNC	<unknown>	DEFAULT	8
_bss_end__	.dynsym	0x19ca8	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
_edata	.dynsym	0x19bc0	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
_end	.dynsym	0x19ca8	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
_exit	.dynsym	0x8dcc	40	FUNC	<unknown>	DEFAULT	SHN_UNDEF
_start	.dynsym	0x8f30	80	FUNC	<unknown>	DEFAULT	8
abort	.dynsym	0x8c88	352	FUNC	<unknown>	DEFAULT	SHN_UNDEF
accept	.dynsym	0x8ca0	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
bind	.dynsym	0x8cd0	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
calloc	.dynsym	0x8cac	88	FUNC	<unknown>	DEFAULT	SHN_UNDEF
chdir	.dynsym	0x8ce8	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
clock	.dynsym	0x8df0	52	FUNC	<unknown>	DEFAULT	SHN_UNDEF
close	.dynsym	0x8e20	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
closedir	.dynsym	0x8e08	196	FUNC	<unknown>	DEFAULT	SHN_UNDEF
connect	.dynsym	0x8bec	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
exit	.dynsym	0x8dc0	172	FUNC	<unknown>	DEFAULT	SHN_UNDEF
fcntl	.dynsym	0x8e14	116	FUNC	<unknown>	DEFAULT	SHN_UNDEF
fork	.dynsym	0x8d48	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
free	.dynsym	0x8e2c	288	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getpid	.dynsym	0x8c04	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getppid	.dynsym	0x8d78	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getsockname	.dynsym	0x8e44	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getsockopt	.dynsym	0x8da8	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
inet_addr	.dynsym	0x8cdc	36	FUNC	<unknown>	DEFAULT	SHN_UNDEF
kill	.dynsym	0x8cc4	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
malloc	.dynsym	0x8c28	400	FUNC	<unknown>	DEFAULT	SHN_UNDEF
memcpy	.dynsym	0x8c1c	4	FUNC	<unknown>	DEFAULT	SHN_UNDEF
memset	.dynsym	0x8d60	156	FUNC	<unknown>	DEFAULT	SHN_UNDEF
open	.dynsym	0x8de4	92	FUNC	<unknown>	DEFAULT	SHN_UNDEF
opendir	.dynsym	0x8d90	264	FUNC	<unknown>	DEFAULT	SHN_UNDEF
pipe	.dynsym	0x8c94	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
prctl	.dynsym	0x8c10	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
rand	.dynsym	0x8d00	4	FUNC	<unknown>	DEFAULT	SHN_UNDEF
read	.dynsym	0x8d18	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
readdir	.dynsym	0x8c64	224	FUNC	<unknown>	DEFAULT	SHN_UNDEF
readlink	.dynsym	0x0	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
realloc	.dynsym	0x8d3c	312	FUNC	<unknown>	DEFAULT	SHN_UNDEF
recv	.dynsym	0x8be0	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
recvfrom	.dynsym	0x8c40	52	FUNC	<unknown>	DEFAULT	SHN_UNDEF
remove	.dynsym	0x0	72	FUNC	<unknown>	DEFAULT	SHN_UNDEF
select	.dynsym	0x8c58	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
send	.dynsym	0x8c7c	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sendto	.dynsym	0x8d30	52	FUNC	<unknown>	DEFAULT	SHN_UNDEF
setsid	.dynsym	0x8dfc	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
setsockopt	.dynsym	0x8cf4	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sigaddset	.dynsym	0x8c70	48	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sigemptyset	.dynsym	0x8bf8	24	FUNC	<unknown>	DEFAULT	SHN_UNDEF
signal	.dynsym	0x8d0c	200	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sigprocmask	.dynsym	0x8e38	84	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sleep	.dynsym	0x8c34	420	FUNC	<unknown>	DEFAULT	SHN_UNDEF
socket	.dynsym	0x8c4c	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sprintf	.dynsym	0x8d9c	52	FUNC	<unknown>	DEFAULT	SHN_UNDEF
srand	.dynsym	0x8d6c	148	FUNC	<unknown>	DEFAULT	SHN_UNDEF
strlen	.dynsym	0x8dd8	96	FUNC	<unknown>	DEFAULT	SHN_UNDEF
time	.dynsym	0x8d84	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
unlink	.dynsym	0x8d24	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF
write	.dynsym	0x8cb8	44	FUNC	<unknown>	DEFAULT	SHN_UNDEF

Network Behavior

Network Port Distribution

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Dec 30, 2024 03:55:50.132375956 CET	53350	53	192.168.2.14	1.1.1.1
Dec 30, 2024 03:55:50.132448912 CET	36360	53	192.168.2.14	1.1.1.1
Dec 30, 2024 03:55:50.139566898 CET	53	36360	1.1.1.1	192.168.2.14
Dec 30, 2024 03:55:50.140000105 CET	53	53350	1.1.1.1	192.168.2.14

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Dec 30, 2024 03:55:50.132375956 CET	192.168.2.14	1.1.1.1	0x27b9	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Dec 30, 2024 03:55:50.132448912 CET	192.168.2.14	1.1.1.1	0x1c8a	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
Dec 30, 2024 03:55:50.140000105 CET	1.1.1.1	192.168.2.14	0x27b9	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false
Dec 30, 2024 03:55:50.140000105 CET	1.1.1.1	192.168.2.14	0x27b9	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: arm5.elf PID: 5516, Parent PID: 5435

General

Start time (UTC):	02:53:04
Start date (UTC):	30/12/2024
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 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

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

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

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: arm5.elf PID: 5516, Parent PID: 5435

General

Chronological Activities

Linux Analysis Report
arm5.elf