8f75e0958f99e96dc69b2e13d5a51b1faf03fb3224d8ab072997e3007c9940c3

Analysis

max time kernel
151s
max time network
36s
platform
windows7_x64
resource
win7-20230703-en
resource tags

arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system
submitted
10/07/2023, 21:18

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General

Target

Yarbrough/Mk2Y/Assets/2ComPod-036.mu
Size

1.6MB
MD5

e0890a71f56e3e1a4455eaa1f70bf627
SHA1

3980e34f4c5af72c1669f5d96ed03c39b8dd04fe
SHA256

09ef7f70ccbc09edf0cd12c9e78aa1de7222cf50c1d85aef3a9a5cf404d6a105
SHA512

9df743ab73ac934031d8ce407ebc74ce1a9d4afedacfa3ff8ec667c0ebe6888f47b247a9651fe46dee12a519b1943459a4379e25e282a3e7faf878d94db7daa1
SSDEEP

49152:PBr69RXV098ZwHu7oIOejpyYvaC+5CqG0lbpsq3LNR:PBr69RXV098ZwH0otejfORHbSq3LNR

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-1-5-21-2859459355-424593036-1984306042-1000_CLASSES\mu_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2859459355-424593036-1984306042-1000_CLASSES\.mu	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2859459355-424593036-1984306042-1000_CLASSES\.mu\ = "mu_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2859459355-424593036-1984306042-1000_CLASSES\mu_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2859459355-424593036-1984306042-1000_CLASSES\mu_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2859459355-424593036-1984306042-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2859459355-424593036-1984306042-1000_CLASSES\mu_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2859459355-424593036-1984306042-1000_CLASSES\mu_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2859459355-424593036-1984306042-1000_CLASSES\mu_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1700	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1700	AcroRd32.exe
1700	AcroRd32.exe
1700	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2964 wrote to memory of 3044	2964	cmd.exe	29
PID 2964 wrote to memory of 3044	2964	cmd.exe	29
PID 2964 wrote to memory of 3044	2964	cmd.exe	29
PID 3044 wrote to memory of 1700	3044	rundll32.exe	30
PID 3044 wrote to memory of 1700	3044	rundll32.exe	30
PID 3044 wrote to memory of 1700	3044	rundll32.exe	30
PID 3044 wrote to memory of 1700	3044	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Yarbrough\Mk2Y\Assets\2ComPod-036.mu
1⤵
- Suspicious use of WriteProcessMemory
PID:2964
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Yarbrough\Mk2Y\Assets\2ComPod-036.mu
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3044
- - 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\Yarbrough\Mk2Y\Assets\2ComPod-036.mu"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1700

Network

MITRE ATT&CK Enterprise v6

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
69ebabc32cbf532b7b4ea8380f39bed4

SHA1
9e119a8abf76888a2ee6e97aa67d89028dd83008

SHA256
20a921e77ae518aae67f3b091ca37b27571be343b4c42bf3be666d424a1698b8

SHA512
dfe09f16785bee2522297ea85ced8ad473edce34a1af5f6320940ca9894f52eb62afa1f47a32e82005df262777a391000da6947317d9f0efa9dc38ff0c458033

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