f268fa3139efaa709e18e90ff88034d86579050248110404e151b66bd97a1d9f

Analysis

max time kernel
148s
max time network
169s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
24/02/2024, 09:50

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-24_cbf96c5d05fa450c65fc04beebde7009_cryptolocker.exe
Size

39KB
MD5

cbf96c5d05fa450c65fc04beebde7009
SHA1

bdd8024813bfe0ace0c7d34e8312d270175e35c2
SHA256

f268fa3139efaa709e18e90ff88034d86579050248110404e151b66bd97a1d9f
SHA512

f18eaff97b69dac419c6098f18e86d9af7b6622d70bfe0d7a04e9a30d182b980d8137f33db1a9ed64afdb90df604b360b54136e230d770514d10c80552a00c53
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HK/wSvuM:X6QFElP6n+gJQMOtEvwDpjBsYK/x

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023116-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023116-12.dat	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-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation	2024-02-24_cbf96c5d05fa450c65fc04beebde7009_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1052	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 664 wrote to memory of 1052	664	2024-02-24_cbf96c5d05fa450c65fc04beebde7009_cryptolocker.exe	87
PID 664 wrote to memory of 1052	664	2024-02-24_cbf96c5d05fa450c65fc04beebde7009_cryptolocker.exe	87
PID 664 wrote to memory of 1052	664	2024-02-24_cbf96c5d05fa450c65fc04beebde7009_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-02-24_cbf96c5d05fa450c65fc04beebde7009_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-24_cbf96c5d05fa450c65fc04beebde7009_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:664
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1052

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
39KB

MD5
b9c8126cdff7dda53871d647c37f553c

SHA1
c355121fe3b5743bfa87e5c8c8206357cf714aea

SHA256
94e77a1277977e75150d73a2e755385f262d948d13462d1a64aa38c8d70acf59

SHA512
e8a9676198543b66b935493563b1609db21d2a76b568fc4caa7c12075a8ee02a459eca4616e8fc248f0830a3bb9d0177e7f70c082f11d398b904f9854a90309f

Download Submit
memory/664-0-0x0000000002320000-0x0000000002326000-memory.dmp

Filesize
24KB

Download
memory/664-1-0x0000000002320000-0x0000000002326000-memory.dmp

Filesize
24KB

Download
memory/664-2-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/1052-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/1052-22-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download