5188c69bd772ebe6ca8b34e8c08eec90f63ffcf1d6ab20287e074732da21076a

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05-07-2024 22:45

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General

Target

abc.pyc
Size

8KB
MD5

55eca4895d9663db2cf0f7e5fc2979d0
SHA1

71acdc8d851bb34c8d349ea5d0ced79860508702
SHA256

34361a95c9ade263424795d9c92ae5ef3af4038ca1de6b60ba724bc60f9a5f5d
SHA512

358341792d06b65caa92a97d3cfc4681cc4a5f997decf850e3fb3a7f4024950f5a729ca5e15bc173af773e2f1fd761f966797fdaf8ffe7fba9d02ae8f2e36db9
SSDEEP

192:S2+dPNnn84ttUUIs1p2lYUtCqMNbH/7fLrXLk5ebmzuUAlu:S2+dPxtttbzqMxXLk5eCMlu

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-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2900	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2900	AcroRd32.exe
2900	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1640 wrote to memory of 2616	1640	cmd.exe	29
PID 1640 wrote to memory of 2616	1640	cmd.exe	29
PID 1640 wrote to memory of 2616	1640	cmd.exe	29
PID 2616 wrote to memory of 2900	2616	rundll32.exe	30
PID 2616 wrote to memory of 2900	2616	rundll32.exe	30
PID 2616 wrote to memory of 2900	2616	rundll32.exe	30
PID 2616 wrote to memory of 2900	2616	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\abc.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:1640
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\abc.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2616
- - 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\abc.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2900

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
75f28a2c70396df09a6c546214f5818d

SHA1
575c4a5d7eacce0987a8cdbd95ff829e2059fb88

SHA256
a36284316f30fb5a5a4bc3a60f923ec4ae7f85938901d0d017b5c41d94e947f8

SHA512
bf841611da291f8624d3091982830e17667ef4c8de7762bc402b9cded9020528befb676e036315e624538a622423acabbd03db365d12df425879557b8e4650b1

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