84ffeb03e01122e7bf0fa887abe5ca16534db2d10473a8ffb3d0770086887bb8

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
27/06/2024, 15:26

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General

Target

2024-06-27_68aecaa182c7e7cf4958191900715dc9_cryptolocker.exe
Size

48KB
MD5

68aecaa182c7e7cf4958191900715dc9
SHA1

72042690e50cc05974992f380e6be5d276dd79c4
SHA256

84ffeb03e01122e7bf0fa887abe5ca16534db2d10473a8ffb3d0770086887bb8
SHA512

a21f98013612b5b06685b0eff6f351e15d2a57ef9f01b228a894441b89e78df05aabf87f4b5edab0ff096ac1723a59898020bfd2f63db1168267d728e15f167e
SSDEEP

768:79inqyNR/QtOOtEvwDpjBKccJVODvy3Z5f:79mqyNhQMOtEvwDpjBzckqXf

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/696-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x00090000000234e7-13.dat	CryptoLocker_rule2
behavioral2/memory/696-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/2224-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/696-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x00090000000234e7-13.dat	CryptoLocker_set1
behavioral2/memory/696-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/2224-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

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-1-5-21-3665033694-1447845302-680750983-1000\Control Panel\International\Geo\Nation	2024-06-27_68aecaa182c7e7cf4958191900715dc9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2224	asih.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 696 wrote to memory of 2224	696	2024-06-27_68aecaa182c7e7cf4958191900715dc9_cryptolocker.exe	91
PID 696 wrote to memory of 2224	696	2024-06-27_68aecaa182c7e7cf4958191900715dc9_cryptolocker.exe	91
PID 696 wrote to memory of 2224	696	2024-06-27_68aecaa182c7e7cf4958191900715dc9_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-06-27_68aecaa182c7e7cf4958191900715dc9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-27_68aecaa182c7e7cf4958191900715dc9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:696
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2224

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=4112,i,8447163055677043976,7218082390179600880,262144 --variations-seed-version --mojo-platform-channel-handle=4060 /prefetch:8
1⤵
PID:3508

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\asih.exe

Filesize
48KB

MD5
d7078aea614fbcada6a07c6db17d24ea

SHA1
6fc04cff7abdb6e844e9189a959468000db11acb

SHA256
30a0b5bae7132803965a8509f9a51f7c9bb06b109359d32c48c9594e60a3bd02

SHA512
fcd6a3f4067e88d48c88b93e8eb58789c1c7245c26b437449f929932047c0e9a0d32501ceb7f35c14f4add5f03341c63f32b12aa4fc4b065cf46c770ab479651

Download Submit
memory/696-1-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/696-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/696-2-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/696-9-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/696-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2224-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2224-20-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/2224-26-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download