008fb3728c95f6365841dd7a3fe0e61b16fc6d37804ba699d82af1161c1da3b5

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
23/02/2024, 05:39

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General

Target

2024-02-23_357cd1664c8e798912e837cae83a50d4_cryptolocker.exe
Size

42KB
MD5

357cd1664c8e798912e837cae83a50d4
SHA1

61529526a7ee0f190ff3f18285e6e3178579990c
SHA256

008fb3728c95f6365841dd7a3fe0e61b16fc6d37804ba699d82af1161c1da3b5
SHA512

b96ac1997eb0d59693e859e23af3dbd58b44320b905c30051b11ecca30aa0c771d6b1d91965c948a05b5793d13eabf31037a23b0afe6bea44f7ebb6a53b14765
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMRqrwGKT:bc/y2lkF0+Bjrdc

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000e000000023165-12.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-1-5-21-1392040655-2056082574-619088944-1000\Control Panel\International\Geo\Nation	2024-02-23_357cd1664c8e798912e837cae83a50d4_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2212	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 1792 wrote to memory of 2212	1792	2024-02-23_357cd1664c8e798912e837cae83a50d4_cryptolocker.exe	87
PID 1792 wrote to memory of 2212	1792	2024-02-23_357cd1664c8e798912e837cae83a50d4_cryptolocker.exe	87
PID 1792 wrote to memory of 2212	1792	2024-02-23_357cd1664c8e798912e837cae83a50d4_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-02-23_357cd1664c8e798912e837cae83a50d4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_357cd1664c8e798912e837cae83a50d4_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1792
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  PID:2212

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
7e76d5f0b3e65e605d610a5eba7ccf3e

SHA1
bebec0efa0a79af9475cfee4984896df1f3cb515

SHA256
e5dc987ef2166ad60960cf7819068f1467f940a1d8118a7a38afc72cf935f2c3

SHA512
e79d432b26c5da3764b87338b76802f5500a2a258ec9f8f53fa0139d6164a7230ccbda78cae3836b22155d01851331c576c5c36dfb968146ca9aa6bf385b2f11

Download Submit
memory/1792-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/1792-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/1792-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2212-21-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download