9681c0c07bdd630a1953d61e383038b057986a7a05c3f5f0f5d8370f3acd4515

Analysis

max time kernel
117s
max time network
120s
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-1-5-21-3063565911-2056067323-3330884624-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid	Process
2864	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid	Process
2864	AcroRd32.exe
2864	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	Process	procid_target
PID 1304 wrote to memory of 2340	1304	cmd.exe	31
PID 1304 wrote to memory of 2340	1304	cmd.exe	31
PID 1304 wrote to memory of 2340	1304	cmd.exe	31
PID 2340 wrote to memory of 2864	2340	rundll32.exe	32
PID 2340 wrote to memory of 2864	2340	rundll32.exe	32
PID 2340 wrote to memory of 2864	2340	rundll32.exe	32
PID 2340 wrote to memory of 2864	2340	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:1304
- 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:2340
- - 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:2864

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
f12b52e92b90a21d332a95f01deb0a18

SHA1
a09d0627163f50cd9e10fe72b93b0a701d1b8a28

SHA256
0afc3df75959309754cefd131d7e0c3f37bd9af321fcaadf111b45707a697dd6

SHA512
2c66b471f1d829b5a0eb710d241c4fda232207260ff8993a8d85ce125313a1d499ded6a308be544388d383d3539ed72f7330c724c645d93a543d165f0c3e4cdb

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