6eae95c6b6a21a39035e2816b40778610ca8d1c747a6af97935ea95408d6c2c0

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
29/06/2024, 04:37

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General

Target

2024-06-29_4dc90cd97918cf06c09a3af83050bb7a_cryptolocker.exe
Size

48KB
MD5

4dc90cd97918cf06c09a3af83050bb7a
SHA1

58a8068d45a3111f724f9c5b4d69f8f3a13befa7
SHA256

6eae95c6b6a21a39035e2816b40778610ca8d1c747a6af97935ea95408d6c2c0
SHA512

d502b0f20c21dfeba9f1311f318fdf0a273ae9cd48b7cf8a4a89980fe265b71d03399819c784bcfa8674da9dac9ead0fc3533719d4140b21860029018bd52414
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPck:P6QFElP6k+MRQMOtEvwDpjBQpVXE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/3452-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000800000002355c-13.dat	CryptoLocker_rule2
behavioral2/memory/3452-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/396-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/396-27-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/3452-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000800000002355c-13.dat	CryptoLocker_set1
behavioral2/memory/3452-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/396-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/396-27-0x0000000000500000-0x000000000050B000-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-1-5-21-4204450073-1267028356-951339405-1000\Control Panel\International\Geo\Nation	2024-06-29_4dc90cd97918cf06c09a3af83050bb7a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
396	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 3452 wrote to memory of 396	3452	2024-06-29_4dc90cd97918cf06c09a3af83050bb7a_cryptolocker.exe	84
PID 3452 wrote to memory of 396	3452	2024-06-29_4dc90cd97918cf06c09a3af83050bb7a_cryptolocker.exe	84
PID 3452 wrote to memory of 396	3452	2024-06-29_4dc90cd97918cf06c09a3af83050bb7a_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-06-29_4dc90cd97918cf06c09a3af83050bb7a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-29_4dc90cd97918cf06c09a3af83050bb7a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3452
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:396

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
48KB

MD5
d0e8503e60472c12f437f1748a15252b

SHA1
14870b994c6f7262f8bfc0bf58df4623d805387e

SHA256
a5c65e58d6645da5912c51ed6e64d52083c0015fcf1fa9a714582d79b0d9a447

SHA512
858819c3417f70c2b00e7070adf2194e569133006a05ec967e2b28443f14601f88377ec10ea6c4ae631c0f8e3943826e652e93b24a42794d0eb7aa0278eaafd1

Download Submit
memory/396-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/396-20-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/396-26-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/396-27-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3452-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3452-1-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/3452-2-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3452-9-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/3452-18-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download