d94259329e042360d48ba2d18cc630277afdaaeebf389dced4d5070831e6fe33

Analysis

max time kernel
118s
max time network
122s
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

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General

Target

_weakrefset.pyc
Size

12KB
MD5

92abe13ce0da28a3a33ce49872c232ac
SHA1

526476eb659efd792b527fb2c5c36322d6fa635d
SHA256

aa29a3f6844f93015c0fb0f5334bf567725449ed9f664d8880e2a6eccb8a1848
SHA512

346cad6d7c38caff2dc1bb99e8c9542549f88d54856b7274d4def383606529f22d4c66ce1422a3c08987b944e959de33cd6a5c39da41e55b74499b4f33fd2fa1
SSDEEP

192:i08ugnpkCaKY9jcFn4e19oNpRjacWjMEwjj0JJBTUqdTZEw:ipVpkdP9gF4e19oNpFajjME8jgBBTZEw

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
2800	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2800	AcroRd32.exe
2800	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 388 wrote to memory of 2416	388	cmd.exe	32
PID 388 wrote to memory of 2416	388	cmd.exe	32
PID 388 wrote to memory of 2416	388	cmd.exe	32
PID 2416 wrote to memory of 2800	2416	rundll32.exe	33
PID 2416 wrote to memory of 2800	2416	rundll32.exe	33
PID 2416 wrote to memory of 2800	2416	rundll32.exe	33
PID 2416 wrote to memory of 2800	2416	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\_weakrefset.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:388
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\_weakrefset.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2416
- - 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\_weakrefset.pyc"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2800

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
4d5164490e5b9bb5696546b77e6bd1a8

SHA1
a39c2ba9b244c1249d2878fc78726a7fe69ce5e1

SHA256
12dc7d18dfcd0ff4bd18941a0f62381c61fe2b197015b5759055c162b6a566f3

SHA512
f8bce651e4647ca5b05fd7b52fcf7732567ed6184091f69a1dfe92fcd57603ae896b182c5cbe691382eeb5a54505170dbcb48d0c98229f0fa57fc16b93ae33bc

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