66262cd24479f4ad1812508bc71ddc21ea04b168ecf7ca8ca942459e1bc6b1e6

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Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
30-08-2024 17:19

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General

Target

.bashrc
Size

3KB
MD5

1f98b8f3f3c8f8927eca945d59dcc1c6
SHA1

c4d853993e323432cb84359de2c319b9a767b729
SHA256

342099da4dd28c394d3f8782d90d7465cb2eaa611193f8f378d6918261cb9bb8
SHA512

33bb97936e54fe797b5046ece9c04313306fdc1470c959593f5cc2c641066372f2aee759db3a1bf45470b10c98ca964388172ded77eacaf2500e428d4f00331f

Score

3^/10

discovery

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\bashrc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\bashrc_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\bashrc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\.bashrc\ = "bashrc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\bashrc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\bashrc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\bashrc_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\.bashrc	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2172	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2172	AcroRd32.exe
2172	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 2848	2364	cmd.exe	31
PID 2364 wrote to memory of 2848	2364	cmd.exe	31
PID 2364 wrote to memory of 2848	2364	cmd.exe	31
PID 2848 wrote to memory of 2172	2848	rundll32.exe	32
PID 2848 wrote to memory of 2172	2848	rundll32.exe	32
PID 2848 wrote to memory of 2172	2848	rundll32.exe	32
PID 2848 wrote to memory of 2172	2848	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\.bashrc
1⤵
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\.bashrc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2848
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\.bashrc"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2172

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
d677ca1a9ff2f664935e3cbf4aa16f5b

SHA1
7d7fc495489f993e08ece51447ba2ab148de50e9

SHA256
be34c39c04d5935e802d4598a85efc83096afca4d32273a8ee5376f8d7f0c5c9

SHA512
10047c56098c22d32f04082edc3051d4a72c7db5437f65e9c2d5ec48185eff571e9a7bc358899fab23b1effc66f34f133e8d245dd927de02772ab78787a12508

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