40c92384d321d4728f5f8a7e86066069313b91ed9368f0fa50a55b6ec7f72a25

Resubmissions

04/08/2024, 00:17

240804-ak55pszfmn 7

04/08/2024, 00:15

240804-ajxryavcrf 7

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
04/08/2024, 00:15

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General

Target

main.pyc
Size

94KB
MD5

46d5c1a7ce50eb4892ed7c755195cbee
SHA1

b7c5e91d0417b42ac5d687bab5e616d097ac4a1e
SHA256

6aa2ef60e8fe06d3cb5ba40c85905b2ee8e5d6ef174dfda20ad7a4b6e426a0e0
SHA512

19c6f84e1e3e2e65ee06a72b9a8780d5bfc82b8c4467b00af5ce7f5e6f7beb0d002fa31d23321b648b4f43a906b15cba43be7dcd72d0321b5ede263963680c18
SSDEEP

1536:BiVKHviGboAgjl9AgqfArGZff5SzKRbPabAdUsrh8Ud79onPw7pEnko6:BiVoiGbFgjbAgqfAKZff5S2RbxdUjUI8

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-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_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-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3004	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3004	AcroRd32.exe
3004	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2532 wrote to memory of 2756	2532	cmd.exe	31
PID 2532 wrote to memory of 2756	2532	cmd.exe	31
PID 2532 wrote to memory of 2756	2532	cmd.exe	31
PID 2756 wrote to memory of 3004	2756	rundll32.exe	32
PID 2756 wrote to memory of 3004	2756	rundll32.exe	32
PID 2756 wrote to memory of 3004	2756	rundll32.exe	32
PID 2756 wrote to memory of 3004	2756	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\main.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2532
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\main.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2756
- - 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\main.pyc"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:3004

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

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Downloads

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

Filesize
3KB

MD5
2dbe72c6a625ff2badb1a309a8bb00bf

SHA1
031ed835e6888034e012dd023fc272f1e4df087e

SHA256
d68768d0d7d9bbd67fd6a3d6d2b143552fa1feafee663158c41e178dae8c7bba

SHA512
2ee0b0608c2c298fb31aaa355b6280a83502543c7c5893085c4e2d18d0de96c04b7800fba8d57223183bda9e9ad40bf3817f385278dbc7c1491d047a59f9ba41

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