59f4358d37ce296f44d021ff8d39c40dce4140babbbfc0960a89f982cc0c88fd

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
15/04/2024, 20:09

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General

Target

2024-04-15_1c9d10414cc568e79e37c8490617fec6_cryptolocker.exe
Size

389KB
MD5

1c9d10414cc568e79e37c8490617fec6
SHA1

f36cef10e1a2eb68b5f1838df6f9457133c7b252
SHA256

59f4358d37ce296f44d021ff8d39c40dce4140babbbfc0960a89f982cc0c88fd
SHA512

0e293a6bbfd17995965a1d24f402dc50b38035eb91ebd1cd260d2add1694c74f6068e16239d73cbcec0d5d067bdee94e09aa6e699a39d446a1202fb83bcec3cb
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXe:nnOflT/ZFIjBz3xjTxynGUOUhXe

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002326f-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-1-5-21-2288054676-1871194608-3559553667-1000\Control Panel\International\Geo\Nation	2024-04-15_1c9d10414cc568e79e37c8490617fec6_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4656	hasfj.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 3652 wrote to memory of 4656	3652	2024-04-15_1c9d10414cc568e79e37c8490617fec6_cryptolocker.exe	84
PID 3652 wrote to memory of 4656	3652	2024-04-15_1c9d10414cc568e79e37c8490617fec6_cryptolocker.exe	84
PID 3652 wrote to memory of 4656	3652	2024-04-15_1c9d10414cc568e79e37c8490617fec6_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-04-15_1c9d10414cc568e79e37c8490617fec6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_1c9d10414cc568e79e37c8490617fec6_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3652
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4656

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
389KB

MD5
3c3acb81c1d77ce02d9cff991fef255d

SHA1
1cfd2c0a9c27627cb783b1f957f82fbe7bab0514

SHA256
3531e609439e61bee32944e59dac323083a21aa958985412dbcbf7480a23cd0e

SHA512
6b85a84e359021d16f5aa036fa46500c0e3edd98d1febf0438a21797e0387bfa249aa06bf588ffed1f21377099ce53cc4b72deec8d904b209fcae1695bab8677

Download Submit
memory/3652-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/3652-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/3652-2-0x0000000002290000-0x0000000002296000-memory.dmp

Filesize
24KB

Download
memory/4656-18-0x00000000020C0000-0x00000000020C6000-memory.dmp

Filesize
24KB

Download
memory/4656-17-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download