43ba1e67473bebceb3526f3cc9e69f768abc344925c2b1fe747f83bb80a44fe3

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
30/06/2024, 15:29

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General

Target

loader-o.pyc
Size

275KB
MD5

bee718a9105b39cf5f470bc40824c271
SHA1

833a64f2b46ed46e2b8b6a87ac50f847b4a051da
SHA256

c12c4d01d03fc9369b29880853ee44b80b7fd20d9724ffdf5e5ede6f9d340ffe
SHA512

f8c62c682f804814eb60482e6814646a5341f26fb1d6e3c042e63abf3c71c13a9d28bf21958c413bd0d53507593a25ac9893b7474a76606456c39c9092cb3c04
SSDEEP

1536:I+kcfZ7Su7NnIc0rEXdca2RqpFiigtpuCmQL6At+4ZQNHtHMh/3c5iI54NSes+2g:I+kcxBib4/PR5G6TtQ6kfv0ip/OE

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-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_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-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2652	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2652	AcroRd32.exe
2652	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 2776	2332	cmd.exe	29
PID 2332 wrote to memory of 2776	2332	cmd.exe	29
PID 2332 wrote to memory of 2776	2332	cmd.exe	29
PID 2776 wrote to memory of 2652	2776	rundll32.exe	30
PID 2776 wrote to memory of 2652	2776	rundll32.exe	30
PID 2776 wrote to memory of 2652	2776	rundll32.exe	30
PID 2776 wrote to memory of 2652	2776	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\loader-o.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2332
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\loader-o.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2776
- - 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\loader-o.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2652

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
164b4b550e99e6b224ff9d7d8fe9e61d

SHA1
8c74bc019edc08f6be6716204902fb1409ac0ebf

SHA256
09e96dda78e25c4bc5964585d67ead0e50f1713115e02bce45d8b38f90c74243

SHA512
d372e7485d8057f745785881de60f69dba7f29e11b9ac9ba97802ab68608042a5afc2f70ae74dafa053adcac68d02bdaefcff6b960a798fe90f68ce178b2c1a6

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