5304522c3f48984337f18133639815cab62f24ef25407c3a097fcecfc4b4ed9f

Analysis

max time kernel
222s
max time network
180s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
28/10/2022, 08:28

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General

Target

Contract.lnk
Size

1KB
MD5

c69e380470d25126e26a2ac731f3ee84
SHA1

ddc46580ab308d72176191ed35001830bb76678b
SHA256

03ddebb9718379ba27af2e30ca41a85fddd89fc582468c3eb6066c9b277bd3de
SHA512

d157b382dacc30165160b92e6b8080d5a845502f7a0c783220dc67ddaaa199e4f6a658b71a59990dfda2634e3767f0bb77a24e18945cdefe849d0cd53026f13c

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4812	regsvr32.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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	cmd.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1112	regsvr32.exe
1112	regsvr32.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe
1116	wermgr.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1112	regsvr32.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1388 wrote to memory of 952	1388	cmd.exe	85
PID 1388 wrote to memory of 952	1388	cmd.exe	85
PID 952 wrote to memory of 2172	952	cmd.exe	86
PID 952 wrote to memory of 2172	952	cmd.exe	86
PID 952 wrote to memory of 4812	952	cmd.exe	87
PID 952 wrote to memory of 4812	952	cmd.exe	87
PID 4812 wrote to memory of 1112	4812	regsvr32.exe	88
PID 4812 wrote to memory of 1112	4812	regsvr32.exe	88
PID 4812 wrote to memory of 1112	4812	regsvr32.exe	88
PID 1112 wrote to memory of 1116	1112	regsvr32.exe	89
PID 1112 wrote to memory of 1116	1112	regsvr32.exe	89
PID 1112 wrote to memory of 1116	1112	regsvr32.exe	89
PID 1112 wrote to memory of 1116	1112	regsvr32.exe	89
PID 1112 wrote to memory of 1116	1112	regsvr32.exe	89

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Contract.lnk
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1388
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c reviewer\ungroomed.cmd vr 32. exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:952
- - C:\Windows\system32\replace.exe
    replace C:\Windows\\system32\\regsvr32.exe C:\Users\Admin\AppData\Local\Temp /A
    3⤵
    PID:2172
- - C:\Users\Admin\AppData\Local\Temp\regsvr32.exe
    regsvr32.exe reviewer\beastly.dat
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:4812
  - - C:\Windows\SysWOW64\regsvr32.exe
      reviewer\beastly.dat
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:1112
    - - C:\Windows\SysWOW64\wermgr.exe
        
        C:\Windows\SysWOW64\wermgr.exe
        5⤵
        Suspicious behavior: EnumeratesProcesses
        
        PID:1116

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\regsvr32.exe

Filesize
24KB

MD5
b0c2fa35d14a9fad919e99d9d75e1b9e

SHA1
8d7c2fd354363daee63e8f591ec52fa5d0e23f6f

SHA256
022cb167a29a32dae848be91aef721c74f1975af151807dafcc5ed832db246b7

SHA512
a6155e42b605425914d1bf745d9b2b5ed57976e161384731c6821a1f8fa2bc3207a863ae45d6ad371ac82733b72bb024204498baa4fb38ad46c6d7bc52e5a022

Download Submit
C:\Users\Admin\AppData\Local\Temp\regsvr32.exe

Filesize
24KB

MD5
b0c2fa35d14a9fad919e99d9d75e1b9e

SHA1
8d7c2fd354363daee63e8f591ec52fa5d0e23f6f

SHA256
022cb167a29a32dae848be91aef721c74f1975af151807dafcc5ed832db246b7

SHA512
a6155e42b605425914d1bf745d9b2b5ed57976e161384731c6821a1f8fa2bc3207a863ae45d6ad371ac82733b72bb024204498baa4fb38ad46c6d7bc52e5a022

Download Submit
memory/1112-138-0x00000000031B0000-0x00000000031D9000-memory.dmp

Filesize
164KB

Download
memory/1112-139-0x00000000010E0000-0x000000000110A000-memory.dmp

Filesize
168KB

Download
memory/1112-140-0x00000000031B0000-0x00000000031D9000-memory.dmp

Filesize
164KB

Download
memory/1112-142-0x00000000031B0000-0x00000000031D9000-memory.dmp

Filesize
164KB

Download
memory/1116-143-0x0000000001210000-0x0000000001239000-memory.dmp

Filesize
164KB

Download
memory/1116-144-0x0000000001210000-0x0000000001239000-memory.dmp

Filesize
164KB

Download