c67ad8fc202dd778adcf45477b5a7a13bfe898a9d9dff970321cc9e0c16fb2d5

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
02/06/2024, 08:29

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General

Target

2024-06-02_f8d1908df7db87d55000ec3f568be648_cryptolocker.exe
Size

47KB
MD5

f8d1908df7db87d55000ec3f568be648
SHA1

0009c365635abb7a297a90e789e8f4855413e586
SHA256

c67ad8fc202dd778adcf45477b5a7a13bfe898a9d9dff970321cc9e0c16fb2d5
SHA512

0278870a92668088785801ef26f626e2899740cee3c964b4a055ca9d12b3060cad4d13931dd063dad54a80236c276cb6817f50d934364156c2269a1d7351eb28
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPkZ:P6QFElP6k+MRQMOtEvwDpjBQpVX1Z

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/3436-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0008000000022f51-13.dat	CryptoLocker_rule2
behavioral2/memory/3436-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/3720-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/3720-27-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/3436-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x0008000000022f51-13.dat	CryptoLocker_set1
behavioral2/memory/3436-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/3720-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/3720-27-0x0000000000500000-0x000000000050B000-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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-06-02_f8d1908df7db87d55000ec3f568be648_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3720	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 3436 wrote to memory of 3720	3436	2024-06-02_f8d1908df7db87d55000ec3f568be648_cryptolocker.exe	83
PID 3436 wrote to memory of 3720	3436	2024-06-02_f8d1908df7db87d55000ec3f568be648_cryptolocker.exe	83
PID 3436 wrote to memory of 3720	3436	2024-06-02_f8d1908df7db87d55000ec3f568be648_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-06-02_f8d1908df7db87d55000ec3f568be648_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-02_f8d1908df7db87d55000ec3f568be648_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3436
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3720

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
47KB

MD5
5e7cb81c94403835f685ecf4d1ebec30

SHA1
56866db9e5d9d0cd38bb080524f0a2a33003ebe6

SHA256
eaaef460217d569faf3d3ca9b05305980625191b08336074f047f80cd858d051

SHA512
a3e89ae03e92d5f26c94268db6075d738e89676e7bd97ef113160afddb45b58c4dcc33ae5d906eb3ab105cfa34ba7a1c7e7d3d04cb8d07eda3b8e54eeaffe31c

Download Submit
memory/3436-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3436-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/3436-2-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/3436-9-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/3436-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3720-18-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3720-20-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/3720-26-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/3720-27-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download