8dd4e115eac92036986eaff472f41ba196d89bf07f127508487e2f4da7bb0bdd

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
24-05-2024 12:53

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General

Target

bahmanObserver.sh
Size

420B
MD5

85289ee4a02a45f557625d553f516ba8
SHA1

6f9d737018a80968de0d2182217d053912d796fe
SHA256

8dd4e115eac92036986eaff472f41ba196d89bf07f127508487e2f4da7bb0bdd
SHA512

a11947ab132d4771f19e363fba349734ded2c8c5be793a10a505eac972652facc3637308a99404b67e20822a9c2362d110112e001622ef0af591ff4d7449562f

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_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\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sh_auto_file\shell\Read\command	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
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	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2644	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2644	AcroRd32.exe
2644	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 2252	3048	cmd.exe	29
PID 3048 wrote to memory of 2252	3048	cmd.exe	29
PID 3048 wrote to memory of 2252	3048	cmd.exe	29
PID 2252 wrote to memory of 2644	2252	rundll32.exe	30
PID 2252 wrote to memory of 2644	2252	rundll32.exe	30
PID 2252 wrote to memory of 2644	2252	rundll32.exe	30
PID 2252 wrote to memory of 2644	2252	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\bahmanObserver.sh
1⤵
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\bahmanObserver.sh
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2252
- - 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\bahmanObserver.sh"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2644

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
ff897c06ab64572e6a73d7645200ef33

SHA1
37ce8aaac67bb94eafe3b224368b611018faf0b9

SHA256
7bd7f26a0d717864d1654d14d0feb9a1111acf20f5905451ee1649bc0f0a072a

SHA512
8abc7a3da51ff3cf427bdfe1a51cc47bb6d35c3f4c7b7ec5ed954cf4384e266271091b17d7f13cd88edc52db90d292b9baa28910dcd1fa6b92053931667dc20a

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