4497253b4dcb6b904240a0589c043dd49f7455d43c094a7765e37199aeddb598

Analysis

max time kernel
147s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28/02/2024, 14:26

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General

Target

2024-02-28_f07198175a9258ef940a1ab4bf67cae1_cryptolocker.exe
Size

50KB
MD5

f07198175a9258ef940a1ab4bf67cae1
SHA1

f4627af6708a0ce0ad60c7ced960f347ac88780a
SHA256

4497253b4dcb6b904240a0589c043dd49f7455d43c094a7765e37199aeddb598
SHA512

cea5e3668d39b97c42ac0302bb753ede6bd945c8808aad277e735ba9958be7e9aac94b2c55247f5216d56ac0516e657e08cca7631f300e5a5d5c0c91f019e8b5
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojakNG:V6a+pOtEvwDpjN

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002321e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002321e-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	2024-02-28_f07198175a9258ef940a1ab4bf67cae1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2096	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 1648 wrote to memory of 2096	1648	2024-02-28_f07198175a9258ef940a1ab4bf67cae1_cryptolocker.exe	90
PID 1648 wrote to memory of 2096	1648	2024-02-28_f07198175a9258ef940a1ab4bf67cae1_cryptolocker.exe	90
PID 1648 wrote to memory of 2096	1648	2024-02-28_f07198175a9258ef940a1ab4bf67cae1_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-02-28_f07198175a9258ef940a1ab4bf67cae1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_f07198175a9258ef940a1ab4bf67cae1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1648
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2096

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
50KB

MD5
96f0cbdc1487fb12595b508b26f50afe

SHA1
14d4ba9dfa6ad5973de3f8ea528f34ccc9f6e6a6

SHA256
31d903a0fb809767779a29dc6fa59d087fb46ee144a366c7bfacf4533cdf89f1

SHA512
75555ee92e540f497e48a2c75c7930426e1d4e2a6e3e1ed62b9bf6baeaa1efd6952048607860dfa0c990db50d56def7a2907c814335db20479d9216313ccc13b

Download Submit
memory/1648-0-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/1648-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/1648-2-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/2096-17-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/2096-18-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download