5b3b8c208ae0fb0776dc9abbbb7492b1cf729395aa0bdabe4b0232c13b652f71

Analysis

max time kernel
150s
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
21-05-2024 15:25

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General

Target

2024-05-21_09735adc0b9ca4d2ebcbd7816c3eeaf7_cryptolocker.exe
Size

35KB
MD5

09735adc0b9ca4d2ebcbd7816c3eeaf7
SHA1

e2a1e5661563686f17f39ff30ac8a7e09b6995a5
SHA256

5b3b8c208ae0fb0776dc9abbbb7492b1cf729395aa0bdabe4b0232c13b652f71
SHA512

1207f0e93d9dc63d0cceb5ce0ceb78e6a38b9c66ed43530422b0cb676bd150538797d48a728f8692d82c0ab15280f0b98f95b44c2f77487345d5c4671d478519
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunIVpeNs23mAA6lxT:bA74zYcgT/Ekd0ryfjPIunqpeNswm6T

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\hasfj.exe	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

Processes:

2024-05-21_09735adc0b9ca4d2ebcbd7816c3eeaf7_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-05-21_09735adc0b9ca4d2ebcbd7816c3eeaf7_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

hasfj.exe

pid process

2068 hasfj.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2068	hasfj.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-05-21_09735adc0b9ca4d2ebcbd7816c3eeaf7_cryptolocker.exe

description	pid	process	target process
PID 3088 wrote to memory of 2068	3088	2024-05-21_09735adc0b9ca4d2ebcbd7816c3eeaf7_cryptolocker.exe	hasfj.exe
PID 3088 wrote to memory of 2068	3088	2024-05-21_09735adc0b9ca4d2ebcbd7816c3eeaf7_cryptolocker.exe	hasfj.exe
PID 3088 wrote to memory of 2068	3088	2024-05-21_09735adc0b9ca4d2ebcbd7816c3eeaf7_cryptolocker.exe	hasfj.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-21_09735adc0b9ca4d2ebcbd7816c3eeaf7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_09735adc0b9ca4d2ebcbd7816c3eeaf7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3088
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2068

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\hasfj.exe

Filesize
35KB

MD5
eda23079294184da1456617c41fbd369

SHA1
d76ca916808a0869599f33b83d48e50bd7c5f8f5

SHA256
5addac4f6111849c616bb4e2bd8f880f91f6e897dc9801ebb30909071d502509

SHA512
941c4c88eed65df43f6105c40932950ce777ad66bb7264db2261d4b2e02d4cf7ff56d5cfdb966dd4e2937300037aa36ff64f89d662aaf2d12ac9d7b03f6467a1

Download Submit
memory/2068-17-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download
memory/2068-23-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/3088-0-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/3088-8-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/3088-1-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download