ad85d1e4a6e7a06a7e559195ff0e48d0929e70155cfc74fd7a43782fd89dd166

Analysis

max time kernel
152s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
24-01-2024 04:41

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General

Target

2024-01-24_9a26ff2bf5c6fde1985499ef2bd821d8_cryptolocker.exe
Size

51KB
MD5

9a26ff2bf5c6fde1985499ef2bd821d8
SHA1

1815f170355e60f76a12c94f2d11709d4837b203
SHA256

ad85d1e4a6e7a06a7e559195ff0e48d0929e70155cfc74fd7a43782fd89dd166
SHA512

8af602f319225a9cf0ccd35dd6f41125815038a663f4887560e5091326f5356d31a178b232844fd8a7370f83732d605509be07d437846b52d5fc630e2aa0bad1
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9XbTbte:bIDOw9a0DwitDZzcTw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0002000000022775-12.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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-01-24_9a26ff2bf5c6fde1985499ef2bd821d8_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
5016	lossy.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 2180 wrote to memory of 5016	2180	2024-01-24_9a26ff2bf5c6fde1985499ef2bd821d8_cryptolocker.exe	88
PID 2180 wrote to memory of 5016	2180	2024-01-24_9a26ff2bf5c6fde1985499ef2bd821d8_cryptolocker.exe	88
PID 2180 wrote to memory of 5016	2180	2024-01-24_9a26ff2bf5c6fde1985499ef2bd821d8_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-24_9a26ff2bf5c6fde1985499ef2bd821d8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-24_9a26ff2bf5c6fde1985499ef2bd821d8_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:5016

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\lossy.exe

Filesize
51KB

MD5
0a6b2dd7df94c9c411a0d9b49287de50

SHA1
625758bcf672a62e9afd1cff77ae634a07e56436

SHA256
8c8b913b475b8266656b9f109295658e297db7770652af6fe3d9910b2f1f0b59

SHA512
1dac66b5269c886ca22cae65a6103e0712b3a6291ccae9c287e150a3f4a8bb394764a61b7bf8db6c3dbac0903c94bd5fa9e62db30cf90470e1dddb8d2fe1c621

Download Submit
memory/2180-0-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/2180-1-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/2180-2-0x0000000000710000-0x0000000000716000-memory.dmp

Filesize
24KB

Download
memory/5016-17-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/5016-19-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download