31eacd3117d660daf79e221ac449d77b7bb8f216871cc749ade733361b307c04

Analysis

max time kernel
139s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
08/01/2024, 03:41

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General

Target
4a58343be43aabd8208f96368dd71d4a.exe
Size 201KB
Sample240108-d89pksaebn
SHA256 31eacd3117d660daf79e221ac449d77b7bb8f216871cc749ade733361b307c04
MD5 4a58343be43aabd8208f96368dd71d4a
SHA1 0effc69355fd92c7e323636ba69cdcc52f8acbcd
SHA512 046a9119960e5651b4061e21cb6450520c3f920dcc5616ee211c36e5143a84e9add025b94181e3032799053e243122f3a8a5c5d21d4f9ba68127fd067edc7368
SSDEEP 3072:/cT9g8immW6Pozkk2eKs/CSr2nQ/E2S5ny+bF2u1I+ddDK7Hlq/B8epjBFy11AwA:o68i3odBiTl2+TCU/lhuhuIc
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

persistence

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	cmd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft I Service = "C:\\Windows\\winhash_up.exe /REGstart"	4a58343be43aabd8208f96368dd71d4a.exe

Drops file in Windows directory 12 IoCs

description	ioc	Process
File created	C:\Windows\SHARE_TEMP\Icon7.ico	4a58343be43aabd8208f96368dd71d4a.exe
File created	C:\Windows\SHARE_TEMP\Icon12.ico	4a58343be43aabd8208f96368dd71d4a.exe
File created	C:\Windows\SHARE_TEMP\Icon14.ico	4a58343be43aabd8208f96368dd71d4a.exe
File created	C:\Windows\winhash_up.exez	4a58343be43aabd8208f96368dd71d4a.exe
File created	C:\Windows\SHARE_TEMP\Icon3.ico	4a58343be43aabd8208f96368dd71d4a.exe
File created	C:\Windows\SHARE_TEMP\Icon5.ico	4a58343be43aabd8208f96368dd71d4a.exe
File created	C:\Windows\SHARE_TEMP\Icon6.ico	4a58343be43aabd8208f96368dd71d4a.exe
File created	C:\Windows\bugMAKER.bat	4a58343be43aabd8208f96368dd71d4a.exe
File opened for modification	C:\Windows\winhash_up.exez	4a58343be43aabd8208f96368dd71d4a.exe
File created	C:\Windows\winhash_up.exe	4a58343be43aabd8208f96368dd71d4a.exe
File created	C:\Windows\SHARE_TEMP\Icon2.ico	4a58343be43aabd8208f96368dd71d4a.exe
File created	C:\Windows\SHARE_TEMP\Icon10.ico	4a58343be43aabd8208f96368dd71d4a.exe

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1712	cmd.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4380 wrote to memory of 1712	4380	4a58343be43aabd8208f96368dd71d4a.exe	18
PID 4380 wrote to memory of 1712	4380	4a58343be43aabd8208f96368dd71d4a.exe	18
PID 4380 wrote to memory of 1712	4380	4a58343be43aabd8208f96368dd71d4a.exe	18

C:\Users\Admin\AppData\Local\Temp\4a58343be43aabd8208f96368dd71d4a.exe
"C:\Users\Admin\AppData\Local\Temp\4a58343be43aabd8208f96368dd71d4a.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4380
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Windows\bugMAKER.bat
  2⤵
  - Checks computer location settings
  - Suspicious use of SetWindowsHookEx
  PID:1712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

bugMAKER.bat

Path C:\Windows\bugMAKER.bat
Size 76B
SHA256 9cdd23f204c83a989bd8ff8c3b6db08e1da0d9cd759ca0b69147d03aa8ca634c
MD5 624c0b02fc3786bc1fe11308fa5c4b9d
SHA1 aeeef34030f30a6363b3e6669fb2a78214329fda
SHA512 724db6ded73c24b015330f1ce44778eaecebac235ac13db4fd99a43c841cfe57b5e4f2839418929def4236c6996e63f91126b0f54b52c4f1dd54be54a2c9379c
MD5 SHA1 SHA512

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memory/4380-24-0x0000000000400000-0x000000000042D000-memory.dmp

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads