e6d74a94f2605bbc00a3f92d17835314c52432f8edf96e61e9692efc0ff0ee1d

Analysis

max time kernel
141s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11/06/2024, 18:57

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-06-11_6baa6960ea8c7fcbb9bf156db17469f5_cryptolocker.exe
Size

53KB
MD5

6baa6960ea8c7fcbb9bf156db17469f5
SHA1

b8000fb09549ce296fd9e31270e5e4378c9b1b7d
SHA256

e6d74a94f2605bbc00a3f92d17835314c52432f8edf96e61e9692efc0ff0ee1d
SHA512

dea2e2fdb0d0b8c9a8ff4f8e61b7c9cc3fcfdc92ca26d500364f8279e9207ed78416a5e355f7bb232ab6280a1dbcf9703075a2a4e46a72b19e45fe3aed029471
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qnTHGfidw:79mqyNhQMOtEvwDpjBxe8GGf7

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral2/memory/3304-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000b000000023225-13.dat	CryptoLocker_rule2
behavioral2/memory/3304-24-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral2/memory/3304-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000b000000023225-13.dat	CryptoLocker_set1
behavioral2/memory/3304-24-0x0000000000500000-0x000000000050F000-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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-06-11_6baa6960ea8c7fcbb9bf156db17469f5_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4764	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 3304 wrote to memory of 4764	3304	2024-06-11_6baa6960ea8c7fcbb9bf156db17469f5_cryptolocker.exe	92
PID 3304 wrote to memory of 4764	3304	2024-06-11_6baa6960ea8c7fcbb9bf156db17469f5_cryptolocker.exe	92
PID 3304 wrote to memory of 4764	3304	2024-06-11_6baa6960ea8c7fcbb9bf156db17469f5_cryptolocker.exe	92

C:\Users\Admin\AppData\Local\Temp\2024-06-11_6baa6960ea8c7fcbb9bf156db17469f5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-11_6baa6960ea8c7fcbb9bf156db17469f5_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3304
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4764

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=3788 --field-trial-handle=3192,i,2785050981002401924,4037047756083432660,262144 --variations-seed-version /prefetch:8
1⤵
PID:4256

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

Loading Replay Monitor...

Downloads

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

Filesize
53KB

MD5
f1888cc4f1f0f06f86bf3afc485c5d32

SHA1
52795ff8eb17a6066851c4d25c5a0558a7f211ce

SHA256
b7dc7262be114a1924328ae86e2ccd86af87c2dcc92cff3d4f897665b8dce02d

SHA512
c64a3b4d765fef6ee60346c5e0ab18a6895a1457a39c62fa2bdfbe1e246a60dec615880d4f3a8f01e696345fe06771ee11a8bfc9b13d39289c53adf60fb5efbc

Download Submit
memory/3304-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3304-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3304-2-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3304-3-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/3304-24-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4764-25-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/4764-18-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download