c2b397d24556912fe908506be9a4ae8c08c2db9217345355f50cc6fce3e01611

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
09/06/2024, 17:43

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General

Target
Romper.pyc
Size 5KB
Sample240609-waxapsdg54
SHA256 4a7c05701eb195fa72fb92e1d0cfed7e196014e0edaf1f83a7f20258df7264c8
MD5 b78550cee474574b8d752a267ce5e2fe
SHA1 153353224f22fb184226329e7c78b6497f6ec110
SHA512 59818b7d896bac4b7e7ffbe886701fec66b49c1f46a255ea4051f04ba46f4cae09dd540da6b81bbaaac8d67a9bd8940d0191cc2911293c278a026c454ee0929b
SSDEEP 96:8ybPhCqLHTIKqVJJQZbxjDkSbPhCqLHTIKqVJJQZbxjD+qybPhCqLHTIKqVJJQZA:RbPh7oFQLESbPh7oFQLzybPh7oFQLdQ
MD5 SHA1 SHA512 SSDEEP

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
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
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_auto_file	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
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2636	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2636	AcroRd32.exe
2636	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3040 wrote to memory of 2768	3040	cmd.exe	29
PID 3040 wrote to memory of 2768	3040	cmd.exe	29
PID 3040 wrote to memory of 2768	3040	cmd.exe	29
PID 2768 wrote to memory of 2636	2768	rundll32.exe	30
PID 2768 wrote to memory of 2636	2768	rundll32.exe	30
PID 2768 wrote to memory of 2636	2768	rundll32.exe	30
PID 2768 wrote to memory of 2636	2768	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Romper.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Romper.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2768
- - 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\Romper.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2636

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

SharedDataEvents

Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Size 3KB
SHA256 45c5bbb18eba1d65730906160bc1f5aa0773edd1bcc2cc47afbdf3b21b758a2a
MD5 901342c7d5729c69e686f05fefb86cc1
SHA1 d728afb35feeeead6cdf1fd699be95f141d8f666
SHA512 90f60c44e4836b1b639a25108d80f9681f0212a5346b6a9bfc1a44cd973efa058bbb40d2fa68efb2dd504fdcd1e786bd98232b1a34ba4d2f927e1b7caa8d421c
MD5 SHA1 SHA512

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