4a769d187c267c68bd4b38cc666eebe9d05da5295be32e2da25f38337f1c9dd4

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
02-06-2024 05:01

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General

Target

KKSCF.pyc
Size

4KB
MD5

1d11424e9c431447f57eac93fbb5d985
SHA1

b4e5626cd399d141dee933fd7a601df2a4a8d63f
SHA256

d139fcb065ae817170162fec5c28cca6682ad39ad5f758473d590485c28ba05a
SHA512

f0d41d9fe4643d7a89886494faffd145fa725952a7c357c634b390e3b9f0fc2155d1deb389f5a6fe255403329cba145e7da2c0a0b59211df62606031349a3751
SSDEEP

96:/j0kTy+xBeSkhxD3M/tCy7dRI4tTeRvnCVTiQx4/CBptRZZwccO:7lyisDc/tCOjiRvnCIp/CBDRZZ7

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-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_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-1-5-21-3452737119-3959686427-228443150-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2412	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2412	AcroRd32.exe
2412	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2848 wrote to memory of 2396	2848	cmd.exe	29
PID 2848 wrote to memory of 2396	2848	cmd.exe	29
PID 2848 wrote to memory of 2396	2848	cmd.exe	29
PID 2396 wrote to memory of 2412	2396	rundll32.exe	30
PID 2396 wrote to memory of 2412	2396	rundll32.exe	30
PID 2396 wrote to memory of 2412	2396	rundll32.exe	30
PID 2396 wrote to memory of 2412	2396	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\KKSCF.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2848
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\KKSCF.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2396
- - 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\KKSCF.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2412

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
9d948b12b5b2338f8203b18b5041d4dc

SHA1
1ec90b7ee19f006b93d430ae2afbd43a471330de

SHA256
1a4809199a5dfb5f14ad76a99200f92bc671ee7698a2c869331c00a53d706fcf

SHA512
84308baf6345f1f1ffe0f8b04a13578e9c740d30c8ccc20cb47a5b392805e4d25e42dcc02dcb8acefca51e4a29f7baf037c8ba784d8a56cdcf8b6b43f2f6802a

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