c4a7f111679a33fe1d1833530f0a1199fd46bc645c43407141863337e7ea1db1

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
29/03/2024, 17:27

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General

Target

2024-03-29_126f14e8807ad39ebd52efd05791c3a2_cryptolocker.exe
Size

46KB
MD5

126f14e8807ad39ebd52efd05791c3a2
SHA1

18bd60dc456b8d25f8f0189eb24d91b210551d81
SHA256

c4a7f111679a33fe1d1833530f0a1199fd46bc645c43407141863337e7ea1db1
SHA512

6383b9425125e22eae357f5597e3bcf303a878bb7f1551c866427332750aefbb8efbf852d2e5fc34ea1d60ab46734f664cd12572ef7d861ff0f5de70fb323445
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hQcXSud:bgGYcA/53GAA6y37nbuud

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a000000023189-12.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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	2024-03-29_126f14e8807ad39ebd52efd05791c3a2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4956	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 3892 wrote to memory of 4956	3892	2024-03-29_126f14e8807ad39ebd52efd05791c3a2_cryptolocker.exe	88
PID 3892 wrote to memory of 4956	3892	2024-03-29_126f14e8807ad39ebd52efd05791c3a2_cryptolocker.exe	88
PID 3892 wrote to memory of 4956	3892	2024-03-29_126f14e8807ad39ebd52efd05791c3a2_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-29_126f14e8807ad39ebd52efd05791c3a2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-29_126f14e8807ad39ebd52efd05791c3a2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3892
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4956

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
46KB

MD5
3a8d4ecd6f453bf2a4342c2ae130dc3d

SHA1
7c198d0b7beda718634ffa481eb429fc232046ef

SHA256
fc5cb398d0072c8bf0f3c6108480140d397acbefd414456f0cc8f2e0fe00fcd4

SHA512
0c8d3a2f0e1da83a6c282f706eac39e2edc6c3b27c8659ac41617b87cd7337083bfc05f92cf535948c78c226282bcdac3979695a7ec63a3240dbd1d27b13184a

Download Submit
memory/3892-0-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download
memory/3892-1-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download
memory/3892-2-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/4956-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4956-20-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download