3327918a58aad33e4cdf211d689414131385af11953dabc2e6e96bfb74c01223

Analysis

max time kernel
143s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
27-02-2024 22:24

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General

Target

2024-02-27_176db592d000208fb152f0468b1ade27_cryptolocker.exe
Size

60KB
MD5

176db592d000208fb152f0468b1ade27
SHA1

8ccbd3a20b5f7af93f00a79990cd92a2b7a951dd
SHA256

3327918a58aad33e4cdf211d689414131385af11953dabc2e6e96bfb74c01223
SHA512

236c2502f7819dd4424692c010f08911c2e4885ede56559a7c3a84f551c58b1a78eba0514ef617af1f50361bc038cd7f545aff89290f00695d3a7ed33e42c64c
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj38lD/cMAT+lBOM:ZVxkGOtEvwDpjI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023276-13.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-02-27_176db592d000208fb152f0468b1ade27_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
4948	misid.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1844 wrote to memory of 4948	1844	2024-02-27_176db592d000208fb152f0468b1ade27_cryptolocker.exe	96
PID 1844 wrote to memory of 4948	1844	2024-02-27_176db592d000208fb152f0468b1ade27_cryptolocker.exe	96
PID 1844 wrote to memory of 4948	1844	2024-02-27_176db592d000208fb152f0468b1ade27_cryptolocker.exe	96

C:\Users\Admin\AppData\Local\Temp\2024-02-27_176db592d000208fb152f0468b1ade27_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-27_176db592d000208fb152f0468b1ade27_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1844
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4948

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 --no-appcompat-clear --mojo-platform-channel-handle=3760 --field-trial-handle=2692,i,8678872182442199182,12502579059484928042,262144 --variations-seed-version /prefetch:8
1⤵
PID:2440

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
60KB

MD5
7f19cc40f6381e21b06bef30a354ab63

SHA1
383db206ee747583bb911192e28e13a98f52736c

SHA256
5b8df7bfaed1c337196e562fd1b2a9c757c74a02cb403b9100f095293f1cb2d0

SHA512
bd96e815939d6f8052199a6de7d0a56a9e191e28e183ca159147885f5814a902e5b600cf6dcb39cb28e75a93de7afc48af9934e90ea74f2141e2373568484622

Download Submit
memory/1844-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/1844-1-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/1844-2-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/1844-3-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download
memory/1844-26-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4948-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4948-19-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/4948-20-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download