3758a12f5571cefe41a15dc64b496df2900df304edc50a2b44c995e868a30dc8

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05/09/2024, 18:56

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General

Target

womsz_main.pyc
Size

4KB
MD5

a65dfcc4a59c43827962e7545d67f32b
SHA1

f8bd6d7d542024840a3fad053ffa02f79441faaf
SHA256

0f882947bde8b6f73dd11b6304a1b5c59c8d128baac611d620d6dfe8000f01b2
SHA512

796a8416f39bafd121341da04f2695ffb689243bd5edd98ff027e3ffbfc205d800bc35d0d4f2c7c25b5b3373eb49c77214fe98877798ae087dc473b4a90f052a
SSDEEP

96:Wqb8p0zDOM+dshn1urX/D0kjSrjfz+/6hk:W03OM+duC++S2

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
Key created	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_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-1-5-21-312935884-697965778-3955649944-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\pyc_auto_file\	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2804	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2804	AcroRd32.exe
2804	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 2844	2524	cmd.exe	32
PID 2524 wrote to memory of 2844	2524	cmd.exe	32
PID 2524 wrote to memory of 2844	2524	cmd.exe	32
PID 2844 wrote to memory of 2804	2844	rundll32.exe	33
PID 2844 wrote to memory of 2804	2844	rundll32.exe	33
PID 2844 wrote to memory of 2804	2844	rundll32.exe	33
PID 2844 wrote to memory of 2804	2844	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\womsz_main.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2524
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\womsz_main.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2844
- - 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\womsz_main.pyc"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2804

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
3c2b2dac8813313ce7ced8ee8ed98543

SHA1
2eeb84c3a1054c1023e674108c18617b1b11e553

SHA256
63decd833e70920c07ca61016403320acc947c5f5170e501284fc768cc39104f

SHA512
8420442841c45b89c01acdd47eaf59666dd5973cbd6f45c24dc4566f408a618b2063aa16108f37c8916231f9c698abcf5be9f8e3bc5a7a53bf675037c9da6314

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