98e02f038b75ad10b676ba226b575be134b241b123aa6422e91db958f9286f21

Analysis

max time kernel
112s
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
29/10/2022, 22:17

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General

Target

98e02f038b75ad10b676ba226b575be134b241b123aa6422e91db958f9286f21.dll
Size

36KB
MD5

5f83e1be182e55513a237df358665823
SHA1

430f06a326276bc203e6ffe2afdce1df5a6a93ba
SHA256

98e02f038b75ad10b676ba226b575be134b241b123aa6422e91db958f9286f21
SHA512

dac4ec77776b062120792007a4037ef5cca9184f825c147c308ec6f2fd6d825f5fdde0a9316b49a24163d24ce15b53c1d4fa4214989dba26af1159cb5f9422a2
SSDEEP

384:4ngz/RdiJscccVWSRuLBN9wSrli/xQfbfz1pvwMM58zU:4mziJs2uLhwSrluKT711jMW4

Score

8^/10

persistence

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

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	cmd.exe

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

System Information Discovery
T1082

Modifies registry class 2 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\regfile\shell\open\command\ = "regedit.exe /s \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings	cmd.exe

Runs .reg file with regedit 1 IoCs

pid	Process
4448	regedit.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
372	rundll32.exe
372	rundll32.exe
372	rundll32.exe
372	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 920 wrote to memory of 372	920	rundll32.exe	81
PID 920 wrote to memory of 372	920	rundll32.exe	81
PID 920 wrote to memory of 372	920	rundll32.exe	81
PID 372 wrote to memory of 1780	372	rundll32.exe	82
PID 372 wrote to memory of 1780	372	rundll32.exe	82
PID 372 wrote to memory of 1780	372	rundll32.exe	82
PID 1780 wrote to memory of 4448	1780	cmd.exe	84
PID 1780 wrote to memory of 4448	1780	cmd.exe	84
PID 1780 wrote to memory of 4448	1780	cmd.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\98e02f038b75ad10b676ba226b575be134b241b123aa6422e91db958f9286f21.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:920
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\98e02f038b75ad10b676ba226b575be134b241b123aa6422e91db958f9286f21.dll,#1
  2⤵
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:372
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\a.reg
    3⤵
    - Checks computer location settings
    - Modifies registry class
    - Suspicious use of WriteProcessMemory
    PID:1780
  - - C:\Windows\SysWOW64\regedit.exe
      "regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"
      4⤵
      Runs .reg file with regedit
      PID:4448

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

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\a.reg

Filesize
152B

MD5
b100f5324ef74ded0b998e64d07a2e19

SHA1
40b0d7f51bf2dd8451f1b723d21355c471a5fa46

SHA256
3db613d24a75ae220891698c055e1c580a42e58564f568a0510db87581cc2042

SHA512
c12391bb37c334074f7d7e1257b6364fd5cbce848e0a8fe15b8326f54fd9568fe3baec58618c4334027a774a06a08ec249cb71db925c1f85feee6a3d3a816c04

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