48ae4c9c00d3f3c273eb7d82428c05728ac1f18ddd5de5573f11839d78d9bf50

Analysis

max time kernel
148s
max time network
151s
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, 18:43

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General

Target

2024-03-14_9a146f05c3a0255a449e686e955c89d3_cryptolocker.exe
Size

41KB
MD5

9a146f05c3a0255a449e686e955c89d3
SHA1

41dd10267d3eb6b8b2e5c0e7540139a01dd0b6e0
SHA256

48ae4c9c00d3f3c273eb7d82428c05728ac1f18ddd5de5573f11839d78d9bf50
SHA512

3b0d4d417e10ba86ac2721bd620a5948ce317a50c84526ba276c0b2e9d42de82f84aaeb250ccd9d1b037d706245c5fb2f8e8e99beb6be985eb691ca6ea102c11
SSDEEP

768:b7o/2n1TCraU6GD1a4Xcn62TUdcuQlqJ51jpat:bc/y2lm6Y0AqJ51Vu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	2024-03-14_9a146f05c3a0255a449e686e955c89d3_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1492	rewok.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 3244 wrote to memory of 1492	3244	2024-03-14_9a146f05c3a0255a449e686e955c89d3_cryptolocker.exe	89
PID 3244 wrote to memory of 1492	3244	2024-03-14_9a146f05c3a0255a449e686e955c89d3_cryptolocker.exe	89
PID 3244 wrote to memory of 1492	3244	2024-03-14_9a146f05c3a0255a449e686e955c89d3_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-14_9a146f05c3a0255a449e686e955c89d3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_9a146f05c3a0255a449e686e955c89d3_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3244
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  PID:1492

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\rewok.exe

Filesize
42KB

MD5
89756082b943317190625e7b338f6b14

SHA1
641547dc0967f0b46dd26c911ba4987dad7e0223

SHA256
387d781c7f3c02da5767051707c035e7da86c3dd9866bc4705dce9e407f963a6

SHA512
95f90187351fe0bcbcdf5e67e2d0c80c2c9c1c9d72bf264980e924f2d9d37ab754294641156461caa5573a6d924f230ad62e0d0da71edd16d4122facc594b134

Download Submit
memory/1492-21-0x00000000020A0000-0x00000000020A6000-memory.dmp

Filesize
24KB

Download
memory/3244-0-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download
memory/3244-1-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download
memory/3244-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download