a8bf0e098be4bd81dd533919fde5b669d0415b24fb05f4d0146fa8887f83abcb

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29/08/2024, 08:41

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General

Target

2024-08-29_12541b7fdc86e53608565cb0895e8dcc_cryptolocker.exe
Size

44KB
MD5

12541b7fdc86e53608565cb0895e8dcc
SHA1

b740ee5de2c43e7cfdfb9b5d20fd8263caccd93a
SHA256

a8bf0e098be4bd81dd533919fde5b669d0415b24fb05f4d0146fa8887f83abcb
SHA512

9f1417f03f09ece26c15d4bd66b2ad86dee7b1a6bd2167c3fe97dfb4f0719e34923f6b4812f231e0d22636efecfb12282e92689a1231e5211a188924725eb778
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HK/wSvuQTCyD/95WJh:X6QFElP6n+gJQMOtEvwDpjBsYK/fbDFE

Score

7^/10

discovery

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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	2024-08-29_12541b7fdc86e53608565cb0895e8dcc_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3348	asih.exe

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 2 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	2024-08-29_12541b7fdc86e53608565cb0895e8dcc_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1588 wrote to memory of 3348	1588	2024-08-29_12541b7fdc86e53608565cb0895e8dcc_cryptolocker.exe	92
PID 1588 wrote to memory of 3348	1588	2024-08-29_12541b7fdc86e53608565cb0895e8dcc_cryptolocker.exe	92
PID 1588 wrote to memory of 3348	1588	2024-08-29_12541b7fdc86e53608565cb0895e8dcc_cryptolocker.exe	92

C:\Users\Admin\AppData\Local\Temp\2024-08-29_12541b7fdc86e53608565cb0895e8dcc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-29_12541b7fdc86e53608565cb0895e8dcc_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1588
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3348

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4048,i,10597648459838880772,16562651767759956329,262144 --variations-seed-version --mojo-platform-channel-handle=4468 /prefetch:8
1⤵
PID:3472

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
45KB

MD5
1758922c033249a33b27028b50202fde

SHA1
a48b99f9b96bb504fe22ec70fd1c7817e89b0838

SHA256
81e7f5d33facd945b29d17933cc4bb8367eaaf8a2eef963295a88dbc1a95f4e9

SHA512
f57a370087f78f9f209b88d5905ef5028742d955d5ba71839cf197bb1397b8e387e51d1f5baa3fac8eea501c625193e5eb7dabfdd1f54be434bf5578099649ec

Download Submit
memory/1588-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1588-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1588-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3348-17-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/3348-23-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download