8221253c5c2e9495674808d1c361ff5725f6ac06ab2194257762c7fa31ad61a5

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
15-05-2024 21:42

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General

Target

2024-05-15_eed6ee77328d06972b40b191d6b08df3_cryptolocker.exe
Size

53KB
MD5

eed6ee77328d06972b40b191d6b08df3
SHA1

d0ae2de82502ade0605159c8d0143bebc5ff492e
SHA256

8221253c5c2e9495674808d1c361ff5725f6ac06ab2194257762c7fa31ad61a5
SHA512

a831ea23bdd7502b2d45f57a103e8230abe1d9ddd0242157f7792be5ee90783b2695c3b048f48998c4dabc11d52450109fab5bf4fe63205b912032d0317300a3
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9Xv+mb6uYGExYSL:bIDOw9a0DwitDZzc161BL

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023457-12.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-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation	2024-05-15_eed6ee77328d06972b40b191d6b08df3_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4348	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 1008 wrote to memory of 4348	1008	2024-05-15_eed6ee77328d06972b40b191d6b08df3_cryptolocker.exe	85
PID 1008 wrote to memory of 4348	1008	2024-05-15_eed6ee77328d06972b40b191d6b08df3_cryptolocker.exe	85
PID 1008 wrote to memory of 4348	1008	2024-05-15_eed6ee77328d06972b40b191d6b08df3_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-05-15_eed6ee77328d06972b40b191d6b08df3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-15_eed6ee77328d06972b40b191d6b08df3_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1008
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:4348

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
53KB

MD5
50e4d1c3f8ea22928282d2867419dc2c

SHA1
f065eb13c55ffc9de898377e3990e8878212c4d4

SHA256
1d7073a0024361e54161dd8bacd1d349de4b1f558db395f3a4e81b08363fa138

SHA512
918055f77c25fc4675c788bffd60352eb326a39a97fbc9cf5e053e15ca40b094c1d89b83184cf18f2fc21d0949a8e2946b119e045cef748970f14f1250d804dc

Download Submit
memory/1008-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/1008-1-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/1008-8-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/4348-17-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/4348-23-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download