bbec7a6d4f3edf13e687545f8ae4709cf31b08d1feac57161598638c57f17f8e

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27-09-2024 21:42

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General

Target

BuilderGUI.pdb
Size

22KB
MD5

df43dfb5e9626e9ab79770b157167995
SHA1

b4a6731163d1b33759d3dccea771b5a31348ce34
SHA256

6e22b0e4883733f93bcb6498d15c32a8c3fed07889f9a8488932707b23ecf8f1
SHA512

750f662a3ff48c51513e1a25c485e58d8760f5da8d34a3dce54e2a7eff525f0b38989bc2eecb0e85b1abd31e6d14a9a6e79d3e4010914ec1d1ad1ce007d4e825
SSDEEP

384:v8HfK0lqtAFKwvHNDJuACrtdtB10dapq/6PhR+6KhBicBE9a+20AuVo73HafyEVb:0/1quhvmACn923QAip7FYTw

Score

3^/10

discovery

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000_CLASSES\pdb_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000_CLASSES\.pdb	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000_CLASSES\pdb_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000_CLASSES\pdb_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000_CLASSES\pdb_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000_CLASSES\pdb_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000_CLASSES\.pdb\ = "pdb_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000_CLASSES\pdb_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2816	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2816	AcroRd32.exe
2816	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1632 wrote to memory of 2876	1632	cmd.exe	32
PID 1632 wrote to memory of 2876	1632	cmd.exe	32
PID 1632 wrote to memory of 2876	1632	cmd.exe	32
PID 2876 wrote to memory of 2816	2876	rundll32.exe	33
PID 2876 wrote to memory of 2816	2876	rundll32.exe	33
PID 2876 wrote to memory of 2816	2876	rundll32.exe	33
PID 2876 wrote to memory of 2816	2876	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\BuilderGUI.pdb
1⤵
- Suspicious use of WriteProcessMemory
PID:1632
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\BuilderGUI.pdb
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2876
- - 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\BuilderGUI.pdb"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2816

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
fe6c306bd81a28303df9efb1409cc9a7

SHA1
f6ed5ff2a178d5278f654a41b51dcaaafac61ab4

SHA256
4d9630cf6ced97667e6ac5605194159e087619488fce78bc19ce6e66cf8a972b

SHA512
a9e571b66db54676691140b587cb1797552998baeba11b280a982e6fdab90e2bcebfca71ff8439937857eefac5dc51ccbbed87c01d96aea84199a3cbb4b9a353

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