015f41c153da757c49a1de131c5e757126ee52ff057d2226647d06b873d528db

Analysis

max time kernel
131s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
14/03/2024, 23:50

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General

Target

2024-03-14_be8b94674deee9d4029382f33f0b6d42_cryptolocker.exe
Size

37KB
MD5

be8b94674deee9d4029382f33f0b6d42
SHA1

c105983506b43f93b8f86048fb300961d08f42de
SHA256

015f41c153da757c49a1de131c5e757126ee52ff057d2226647d06b873d528db
SHA512

ad0e274ff625215cd520d78b80793ec898154a449a388c68630dec4e10ca966cf0f4ad31f5cc3e778d9a649616e76997d0d86271acb3a4dc67b8cc3f2c1dfb42
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLen7CDg:ZzFbxmLPWQMOtEvwDpjLeWU

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000001db2a-13.dat	CryptoLocker_rule2

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-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation	2024-03-14_be8b94674deee9d4029382f33f0b6d42_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4888	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 2608 wrote to memory of 4888	2608	2024-03-14_be8b94674deee9d4029382f33f0b6d42_cryptolocker.exe	95
PID 2608 wrote to memory of 4888	2608	2024-03-14_be8b94674deee9d4029382f33f0b6d42_cryptolocker.exe	95
PID 2608 wrote to memory of 4888	2608	2024-03-14_be8b94674deee9d4029382f33f0b6d42_cryptolocker.exe	95

C:\Users\Admin\AppData\Local\Temp\2024-03-14_be8b94674deee9d4029382f33f0b6d42_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_be8b94674deee9d4029382f33f0b6d42_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2608
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4888

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=4488 --field-trial-handle=2432,i,12161922670941700748,3348345705955601576,262144 --variations-seed-version /prefetch:8
1⤵
PID:4308

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
37KB

MD5
58a8313d93092a53c0c2b665ac23b689

SHA1
e02e36f9782dd6f0eec2049d7f3d0a9b30911cba

SHA256
8ca0686381903d87b50c96862f5faf3f3215fcdf6dc422e9076cd89df6a5e67d

SHA512
065d01c1e5564434f4498ae27820cdab78c87b3e3c2c06ac140bd0278d7f6616040b8e159837cb1ff664363bac1e13581ec67166297d69f6351b61ca8a1d0522

Download Submit
memory/2608-0-0x0000000000490000-0x0000000000493000-memory.dmp

Filesize
12KB

Download
memory/2608-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2608-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2608-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2608-17-0x0000000000490000-0x0000000000493000-memory.dmp

Filesize
12KB

Download
memory/4888-18-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4888-20-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/4888-23-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download