Linux Analysis Report
tarm7.elf

Overview

General Information

Sample name:	tarm7.elf
Analysis ID:	1544639
MD5:	283d2c9be4cca2978d131da65bf2050a
SHA1:	92a9573b2ae418de74aab13e1cfe0943db899b8d
SHA256:	2f5aebc64c61a50611cab64894853fdb96d2b1468abb4c82d58b5e4a96bc88d6
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	80
Range:	0 - 100
Whitelisted:	false

Signatures

Antivirus / Scanner detection for submitted sample

Multi AV Scanner detection for submitted file

Suricata IDS alerts for network traffic

Connects to many ports of the same IP (likely port scanning)

Sample reads /proc/mounts (often used for finding a writable filesystem)

Sample scans a subnet

Sends malformed DNS queries

Detected TCP or UDP traffic on non-standard ports

Sample has stripped symbol table

Sample listens on a socket

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

Classification

Signatures

AV Detection

Antivirus / Scanner detection for submitted sample

Source: tarm7.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: tarm7.elf

ReversingLabs: Detection: 31%

Networking

Suricata IDS alerts for network traffic

Source: Network traffic	Suricata IDS: 2050066 - Severity 1 - ET MALWARE Hailbot CnC Checkin : 192.168.2.15:42748 -> 46.23.108.252:4840
Source: Network traffic	Suricata IDS: 2050066 - Severity 1 - ET MALWARE Hailbot CnC Checkin : 192.168.2.15:38020 -> 46.23.108.58:24272
Source: Network traffic	Suricata IDS: 2050066 - Severity 1 - ET MALWARE Hailbot CnC Checkin : 192.168.2.15:51280 -> 46.23.108.55:2410
Source: Network traffic	Suricata IDS: 2050066 - Severity 1 - ET MALWARE Hailbot CnC Checkin : 192.168.2.15:41254 -> 46.23.108.109:2654
Source: Network traffic	Suricata IDS: 2050066 - Severity 1 - ET MALWARE Hailbot CnC Checkin : 192.168.2.15:42750 -> 46.23.108.252:4840
Source: Network traffic	Suricata IDS: 2050066 - Severity 1 - ET MALWARE Hailbot CnC Checkin : 192.168.2.15:41686 -> 46.23.108.159:22438
Source: Network traffic	Suricata IDS: 2050066 - Severity 1 - ET MALWARE Hailbot CnC Checkin : 192.168.2.15:42746 -> 46.23.108.252:4840
Source: Network traffic	Suricata IDS: 2050066 - Severity 1 - ET MALWARE Hailbot CnC Checkin : 192.168.2.15:44762 -> 46.23.108.64:21693
Source: Network traffic	Suricata IDS: 2050066 - Severity 1 - ET MALWARE Hailbot CnC Checkin : 192.168.2.15:38634 -> 46.23.108.62:17532
Source: Network traffic	Suricata IDS: 2050066 - Severity 1 - ET MALWARE Hailbot CnC Checkin : 192.168.2.15:44266 -> 46.23.108.54:4051
Source: Network traffic	Suricata IDS: 2050066 - Severity 1 - ET MALWARE Hailbot CnC Checkin : 192.168.2.15:41256 -> 46.23.108.109:2654

Connects to many ports of the same IP (likely port scanning)

Source: global traffic	TCP traffic: 46.23.108.62 ports 17532,1,2,3,5,7
Source: global traffic	TCP traffic: 46.23.108.64 ports 21693,1,2,3,6,9

Sample scans a subnet

Source: ip traffic

Subnet 46.23.108.0/24: 46.23.108.58, 46.23.108.109, 46.23.108.62, 46.23.108.54, 46.23.108.64, 46.23.108.55, 46.23.108.252, 46.23.108.159

Sends malformed DNS queries

Source: global traffic	DNS traffic detected: malformed DNS query: repo.dyn. [malformed]
Source: global traffic	DNS traffic detected: malformed DNS query: sandmen.geek. [malformed]
Source: global traffic	DNS traffic detected: malformed DNS query: sliteyed.pirate. [malformed]

Detected TCP or UDP traffic on non-standard ports

Source: global traffic	TCP traffic: 192.168.2.15:38020 -> 46.23.108.58:24272
Source: global traffic	TCP traffic: 192.168.2.15:42746 -> 46.23.108.252:4840
Source: global traffic	TCP traffic: 192.168.2.15:41254 -> 46.23.108.109:2654
Source: global traffic	TCP traffic: 192.168.2.15:44762 -> 46.23.108.64:21693
Source: global traffic	TCP traffic: 192.168.2.15:51280 -> 46.23.108.55:2410
Source: global traffic	TCP traffic: 192.168.2.15:38634 -> 46.23.108.62:17532
Source: global traffic	TCP traffic: 192.168.2.15:44266 -> 46.23.108.54:4051
Source: global traffic	TCP traffic: 192.168.2.15:41686 -> 46.23.108.159:22438

Sample listens on a socket

Source: /tmp/tarm7.elf (PID: 5497)

Socket: 127.0.0.1:1172

Jump to behavior

Source: unknown	UDP traffic detected without corresponding DNS query: 64.176.6.48
Source: unknown	UDP traffic detected without corresponding DNS query: 64.176.6.48
Source: unknown	UDP traffic detected without corresponding DNS query: 178.254.22.166
Source: unknown	UDP traffic detected without corresponding DNS query: 178.254.22.166
Source: unknown	UDP traffic detected without corresponding DNS query: 65.21.1.106
Source: unknown	UDP traffic detected without corresponding DNS query: 65.21.1.106
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: unknown	UDP traffic detected without corresponding DNS query: 51.158.108.203
Source: unknown	UDP traffic detected without corresponding DNS query: 137.220.52.23
Source: unknown	UDP traffic detected without corresponding DNS query: 137.220.52.23
Source: unknown	UDP traffic detected without corresponding DNS query: 80.152.203.134
Source: unknown	UDP traffic detected without corresponding DNS query: 81.169.136.222
Source: unknown	UDP traffic detected without corresponding DNS query: 80.152.203.134
Source: unknown	UDP traffic detected without corresponding DNS query: 168.235.111.72
Source: unknown	UDP traffic detected without corresponding DNS query: 168.235.111.72
Source: unknown	UDP traffic detected without corresponding DNS query: 5.161.109.23
Source: unknown	UDP traffic detected without corresponding DNS query: 51.158.108.203
Source: unknown	UDP traffic detected without corresponding DNS query: 202.61.197.122
Source: unknown	UDP traffic detected without corresponding DNS query: 51.158.108.203
Source: unknown	UDP traffic detected without corresponding DNS query: 70.34.254.19
Source: unknown	UDP traffic detected without corresponding DNS query: 194.36.144.87
Source: unknown	UDP traffic detected without corresponding DNS query: 185.181.61.24
Source: unknown	UDP traffic detected without corresponding DNS query: 70.34.254.19
Source: unknown	UDP traffic detected without corresponding DNS query: 81.169.136.222
Source: unknown	UDP traffic detected without corresponding DNS query: 202.61.197.122
Source: unknown	UDP traffic detected without corresponding DNS query: 139.84.165.176
Source: unknown	UDP traffic detected without corresponding DNS query: 194.36.144.87
Source: unknown	UDP traffic detected without corresponding DNS query: 178.254.22.166
Source: unknown	UDP traffic detected without corresponding DNS query: 51.158.108.203
Source: unknown	UDP traffic detected without corresponding DNS query: 51.158.108.203
Source: unknown	UDP traffic detected without corresponding DNS query: 202.61.197.122
Source: unknown	UDP traffic detected without corresponding DNS query: 64.176.6.48
Source: unknown	UDP traffic detected without corresponding DNS query: 194.36.144.87
Source: unknown	UDP traffic detected without corresponding DNS query: 152.53.15.127
Source: unknown	UDP traffic detected without corresponding DNS query: 51.158.108.203
Source: unknown	UDP traffic detected without corresponding DNS query: 51.158.108.203
Source: unknown	UDP traffic detected without corresponding DNS query: 65.21.1.106

Source: global traffic	DNS traffic detected: DNS query: dingdingrouter.pirate
Source: global traffic	DNS traffic detected: DNS query: repo.dyn. [malformed]
Source: global traffic	DNS traffic detected: DNS query: sandmen.geek
Source: global traffic	DNS traffic detected: DNS query: daisy.ubuntu.com
Source: global traffic	DNS traffic detected: DNS query: sliteyed.pirate
Source: global traffic	DNS traffic detected: DNS query: sandmen.geek. [malformed]
Source: global traffic	DNS traffic detected: DNS query: sliteyed.pirate. [malformed]

Sample has stripped symbol table

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal80.spre.troj.linELF@0/0@35/0

Persistence and Installation Behavior

Sample reads /proc/mounts (often used for finding a writable filesystem)

Source: /tmp/tarm7.elf (PID: 5499)

File: /proc/5499/mounts

Jump to behavior

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

Source: /tmp/tarm7.elf (PID: 5497)

Queries kernel information via 'uname':

Jump to behavior

Source: tarm7.elf, 5497.1.000056073018e000.0000560730305000.rw-.sdmp, tarm7.elf, 5499.1.000056073018e000.0000560730305000.rw-.sdmp, tarm7.elf, 5504.1.000056073018e000.0000560730305000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: tarm7.elf, 5497.1.000056073018e000.0000560730305000.rw-.sdmp, tarm7.elf, 5499.1.000056073018e000.0000560730305000.rw-.sdmp, tarm7.elf, 5504.1.000056073018e000.0000560730305000.rw-.sdmp	Binary or memory string: V!/etc/qemu-binfmt/arm
Source: tarm7.elf, 5497.1.00007ffeb7d6c000.00007ffeb7d8d000.rw-.sdmp, tarm7.elf, 5499.1.00007ffeb7d6c000.00007ffeb7d8d000.rw-.sdmp, tarm7.elf, 5504.1.00007ffeb7d6c000.00007ffeb7d8d000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: tarm7.elf, 5504.1.00007ffeb7d6c000.00007ffeb7d8d000.rw-.sdmp	Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Source: tarm7.elf, 5497.1.00007ffeb7d6c000.00007ffeb7d8d000.rw-.sdmp, tarm7.elf, 5499.1.00007ffeb7d6c000.00007ffeb7d8d000.rw-.sdmp, tarm7.elf, 5504.1.00007ffeb7d6c000.00007ffeb7d8d000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/tarm7.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/tarm7.elf

Screenshots

Network Map

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

Contacted Public IPs

IP	Domain	Country	ASN	ASN Name	Malicious
46.23.108.58	sliteyed.pirate	Azerbaijan	15723	AZERONLINEAZ	true
46.23.108.109	unknown	Azerbaijan	15723	AZERONLINEAZ	true
46.23.108.62	dingdingrouter.pirate	Azerbaijan	15723	AZERONLINEAZ	true
46.23.108.54	unknown	Azerbaijan	15723	AZERONLINEAZ	true
46.23.108.64	unknown	Azerbaijan	15723	AZERONLINEAZ	true
46.23.108.55	unknown	Azerbaijan	15723	AZERONLINEAZ	true
46.23.108.252	unknown	Azerbaijan	15723	AZERONLINEAZ	true
46.23.108.159	unknown	Azerbaijan	15723	AZERONLINEAZ	true

Contacted Domains

Name	IP	Active
sandmen.geek	46.23.108.161	true
daisy.ubuntu.com	162.213.35.25	true
dingdingrouter.pirate	46.23.108.62	true
sliteyed.pirate	46.23.108.58	true
sliteyed.pirate. [malformed]	unknown	unknown
sandmen.geek. [malformed]	unknown	unknown
repo.dyn. [malformed]	unknown	unknown

ID:	1544639
Product:	CloudBasic
Start time:	16:56:08
Start date:	29.10.2024
Sample:	tarm7.elf
Cookbook:	defaultlinuxfilecookbook.jbs
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)
Architecture:	LINUX
MD5:	283d2c9be4cca2978d131da65bf2050a
SHA1:	92a9573b2ae418de74aab13e1cfe0943db899b8d
SHA256:	2f5aebc64c61a50611cab64894853fdb96d2b1468abb4c82d58b5e4a96bc88d6
Filetype:	ELF Executable and Linkable format (generic) (4004/1) 100.00%

Linux Analysis Report
tarm7.elf

Overview

General Information

Detection

Signatures

Classification

Signatures

AV Detection

Networking

System Summary

Persistence and Installation Behavior

Malware Analysis System Evasion

Screenshots

Network Map

Contacted Public IPs

Contacted Domains

Linux Analysis Report tarm7.elf

Overview

General Information

Detection

Signatures

Classification

Signatures

AV Detection

Networking

System Summary

Persistence and Installation Behavior

Malware Analysis System Evasion

Screenshots

Network Map

Contacted Public IPs

Contacted Domains

Linux Analysis Report
tarm7.elf