b089fcd4a23591b5b94198f4efeb166d81aea76e5a5785d5e0c5e5c885ad9c5f

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
21-12-2023 22:58

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General

Target

gosh/go.sh
Size

128B
MD5

9120976ddbed219dfd9780a777e80796
SHA1

e193855d3060810c1b90cb20fd44d30a85ebc893
SHA256

19d912539714c23e5c980b73abea891e54a7fa1f84e8172087ce6c8b35e6d903
SHA512

b688a8664be116e159a1ac0c0df06c9ef84bdda8e68211f346c4b6e82c9ee136a69144e209a16ec98e6896a34cb19e1b1d89c01c01eb7eba2f8028932a3843f5

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sh_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.sh\ = "sh_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sh_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sh_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sh_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.sh	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sh_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sh_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2616	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2616	AcroRd32.exe
2616	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2216 wrote to memory of 2556	2216	cmd.exe	29
PID 2216 wrote to memory of 2556	2216	cmd.exe	29
PID 2216 wrote to memory of 2556	2216	cmd.exe	29
PID 2556 wrote to memory of 2616	2556	rundll32.exe	30
PID 2556 wrote to memory of 2616	2556	rundll32.exe	30
PID 2556 wrote to memory of 2616	2556	rundll32.exe	30
PID 2556 wrote to memory of 2616	2556	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\gosh\go.sh
1⤵
- Suspicious use of WriteProcessMemory
PID:2216
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\gosh\go.sh
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2556
- - 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\gosh\go.sh"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2616

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

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
208354fcc47f345d49642225712fbbb3

SHA1
0b086ca7c3ecfd3fe9c24d1b5579303768159649

SHA256
572443b9681c1a7d8c6c5ff7b9c8ae53fd1cff66976f2ee980d84934b5b1e51c

SHA512
52a93ea4800581d79d009bd3de04e88e0aea3f3cf47828771d1cb18c8d45a6568e4ba6ea5201f14946b46e0027209142f5c2f1176bd613c319b5a1b3c2eea6e9

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