d94259329e042360d48ba2d18cc630277afdaaeebf389dced4d5070831e6fe33

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
09-12-2024 23:00

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

encodings/big5hkscs.pyc
Size

2KB
MD5

6155da3d274adaf47719aea5fcbc27bf
SHA1

fd4ff9b9599417f6bcc3953d0b7c5c9d4e85f47f
SHA256

928f752c3884b363b7314a17beca565ceb97514331ae99984ee71a75abe79d07
SHA512

3ee688f897e42ad57d17e4105288422886d5faf9da9d328dff30adc92cccc7b06eed174329de840bc5605acb62838fdcf15e3e7e6263096084fce8665672ba6b

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 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2796	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2796	AcroRd32.exe
2796	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 1844	2368	cmd.exe	31
PID 2368 wrote to memory of 1844	2368	cmd.exe	31
PID 2368 wrote to memory of 1844	2368	cmd.exe	31
PID 1844 wrote to memory of 2796	1844	rundll32.exe	33
PID 1844 wrote to memory of 2796	1844	rundll32.exe	33
PID 1844 wrote to memory of 2796	1844	rundll32.exe	33
PID 1844 wrote to memory of 2796	1844	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\encodings\big5hkscs.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\encodings\big5hkscs.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1844
- - 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\encodings\big5hkscs.pyc"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2796

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
3KB

MD5
fc38907fc60286db2b0055ecc8d5bba7

SHA1
00ad3a5c178b53334ba2b5d5c3f8bd70167105aa

SHA256
cb1de9307df7fff4b970bb653eebc633b3474dc7c3a6446232f71d41c153eb74

SHA512
1108e13a61a29a28f919cf0805866b74520c58e0e9f192d59ed1fc46d8ea1cb01d7985e5ac683e347536ade7074f7ac9af4c4e2a1e478bfb11c96ddedef00dd4

Download Submit