ac78e2b98052126746d316f31064caa98366fcec8637d0c6d44e67c82d7fcf71

Analysis

max time kernel
91s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
02/12/2022, 17:41

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General

Target

ac78e2b98052126746d316f31064caa98366fcec8637d0c6d44e67c82d7fcf71.exe
Size

728KB
MD5

b7187f3370b4e33c32e38606d2d79701
SHA1

65134798abcd51e1daaff21b32517d286b604469
SHA256

ac78e2b98052126746d316f31064caa98366fcec8637d0c6d44e67c82d7fcf71
SHA512

4ed28aec611013a61193bec6d10085911e512be101433bf87010b7070d3cabfb173d7bd380bcfe34b8f9221dc4228fb601e0f514deefd39c8556b20a0e76e0f3
SSDEEP

12288:tzy6rRxEhtrtKmUGtZ4qIvxTXi70aZbvanYUNNY5ZyDNzhkHxP+Q9rXaGjC+NPdu:46rTghtUd80iEYqNM6sHdLLu

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
5072	update.exe

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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	ac78e2b98052126746d316f31064caa98366fcec8637d0c6d44e67c82d7fcf71.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4000	5072	WerFault.exe	81

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4252 wrote to memory of 5072	4252	ac78e2b98052126746d316f31064caa98366fcec8637d0c6d44e67c82d7fcf71.exe	81
PID 4252 wrote to memory of 5072	4252	ac78e2b98052126746d316f31064caa98366fcec8637d0c6d44e67c82d7fcf71.exe	81
PID 4252 wrote to memory of 5072	4252	ac78e2b98052126746d316f31064caa98366fcec8637d0c6d44e67c82d7fcf71.exe	81

C:\Users\Admin\AppData\Local\Temp\ac78e2b98052126746d316f31064caa98366fcec8637d0c6d44e67c82d7fcf71.exe
"C:\Users\Admin\AppData\Local\Temp\ac78e2b98052126746d316f31064caa98366fcec8637d0c6d44e67c82d7fcf71.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4252
- C:\Users\Admin\AppData\Local\Temp\qqhxwg\update.exe
  "C:\Users\Admin\AppData\Local\Temp\qqhxwg\update.exe" /update.exe
  2⤵
  - Executes dropped EXE
  PID:5072
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5072 -s 236
    3⤵
    - Program crash
    PID:4000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 5072 -ip 5072
1⤵
PID:3480

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\qqhxwg\update.exe

Filesize
20KB

MD5
84f112bfe2bbf5f5fc58ee39e1d3330b

SHA1
28cde9ef94ca67c30699fdb5f333506745a64de5

SHA256
d0efc7f788efb4a425e6b49397474bff16ad4898dc75f2ab44c97e93f373b242

SHA512
9bf4b9d0e4f439d707c50583c969d24588d4dce17a41c25c31c840703372fdf60391bd6cd14c3d6550a379bf32873e8f255d1eeebcdf3e009c3e5d5d275d8486

Download Submit
C:\Users\Admin\AppData\Local\Temp\qqhxwg\update.exe

Filesize
20KB

MD5
84f112bfe2bbf5f5fc58ee39e1d3330b

SHA1
28cde9ef94ca67c30699fdb5f333506745a64de5

SHA256
d0efc7f788efb4a425e6b49397474bff16ad4898dc75f2ab44c97e93f373b242

SHA512
9bf4b9d0e4f439d707c50583c969d24588d4dce17a41c25c31c840703372fdf60391bd6cd14c3d6550a379bf32873e8f255d1eeebcdf3e009c3e5d5d275d8486

Download Submit
memory/5072-135-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

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