6d78d2c984f1fcc952b83bc188f4464998fe406b987892fb6b9e0740a7fd72d4

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
16-03-2024 06:07

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-03-16_30c17745d47cba796a4af0c885e6a2ad_cryptolocker.exe
Size

95KB
MD5

30c17745d47cba796a4af0c885e6a2ad
SHA1

55e4a1930b612844694f45896b98f57a2b3f9da4
SHA256

6d78d2c984f1fcc952b83bc188f4464998fe406b987892fb6b9e0740a7fd72d4
SHA512

7c41fae35a8911ce22edc3a77b8169f3902b0b4c84c4b91d68bfb52ab3e7f5106602384812bff393b4f189dda6daf89c10a5f74abc9f8ad973e6825e004606be
SSDEEP

1536:Z6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNC4w7:Z6a+pOtEvwDpjtz2

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023225-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023225-12.dat	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-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation	2024-03-16_30c17745d47cba796a4af0c885e6a2ad_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2840	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 3060 wrote to memory of 2840	3060	2024-03-16_30c17745d47cba796a4af0c885e6a2ad_cryptolocker.exe	91
PID 3060 wrote to memory of 2840	3060	2024-03-16_30c17745d47cba796a4af0c885e6a2ad_cryptolocker.exe	91
PID 3060 wrote to memory of 2840	3060	2024-03-16_30c17745d47cba796a4af0c885e6a2ad_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-03-16_30c17745d47cba796a4af0c885e6a2ad_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-16_30c17745d47cba796a4af0c885e6a2ad_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2840

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
95KB

MD5
595ae40d6a73deb40c2936f7d3b42469

SHA1
6e04fc4038238d44a629a1368ec65882f5cfd410

SHA256
405da4ae6286cb3c2f747c87b26a49225f4cd18fc057b9072658ae34d378ef2d

SHA512
cfe57576f86d20b8e4f374f3fd1469c26f684a416e84c3e6373694bf9c3f3f2509d2b8e54a72f6f5ed8766adc251329951ce79181af55c056b652c4168846b20

Download Submit
memory/2840-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2840-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3060-0-0x0000000002290000-0x0000000002296000-memory.dmp

Filesize
24KB

Download
memory/3060-1-0x0000000002290000-0x0000000002296000-memory.dmp

Filesize
24KB

Download
memory/3060-2-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download