9681c0c07bdd630a1953d61e383038b057986a7a05c3f5f0f5d8370f3acd4515

Analysis

max time kernel
117s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-11-2024 11:59

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General

Target

WyChVIlbg/sleep.sh
Size

1KB
MD5

fe79901a44807126a2b1dae9e340119a
SHA1

94c36ede7d636b453a9f82639915e58040ff6991
SHA256

7e45dbdfd8c250a7e5a62a222d0941d2e08723d6491e5566c14fc08f9ff9b393
SHA512

c8727b1116c4ac950b614df4fa6d634353aba5695cd4dff8c2c3b77e5e70070bfd015f43c5e5740903691f800aef635b5d50f85ccc1f942a7407280238c91f0f

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

Processes:

AcroRd32.exe

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

Modifies registry class 1 IoCs

Processes:

rundll32.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid	Process
2712	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid	Process
2712	AcroRd32.exe
2712	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	Process	procid_target
PID 2100 wrote to memory of 2692	2100	cmd.exe	31
PID 2100 wrote to memory of 2692	2100	cmd.exe	31
PID 2100 wrote to memory of 2692	2100	cmd.exe	31
PID 2692 wrote to memory of 2712	2692	rundll32.exe	32
PID 2692 wrote to memory of 2712	2692	rundll32.exe	32
PID 2692 wrote to memory of 2712	2692	rundll32.exe	32
PID 2692 wrote to memory of 2712	2692	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\WyChVIlbg\sleep.sh
1⤵
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\WyChVIlbg\sleep.sh
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2692
- - 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\WyChVIlbg\sleep.sh"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2712

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
fc520b92481b93f93d72fb28b47e4798

SHA1
a6a8d2167afacf9fe4208cf2aaa542e1db297834

SHA256
c215062449d035f9af968b9b60efbb885a21aa723ad83753baee071dfc656b18

SHA512
d0308090ee98b721fcbf10ee254fc35009cdb47530885f37594a3813d0a072127ae641339c24128d8488585adf4a5cce680bdb16e7526ad5cb308364c89c3477

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