865d38d6b8582a9f2c8bf5b27c75ab9404f6c212c443751ef0a37d1668275258

Analysis

max time kernel
143s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
25/02/2024, 12:45

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General

Target

2024-02-25_98d578b509c4f52c4f3ad4ad08a16844_cryptolocker.exe
Size

64KB
MD5

98d578b509c4f52c4f3ad4ad08a16844
SHA1

b433bd1b1a433b2b7e8edb3eef73c03bb15c5229
SHA256

865d38d6b8582a9f2c8bf5b27c75ab9404f6c212c443751ef0a37d1668275258
SHA512

eca9ceea04673a0b1062c1cdaaacb13fc2fee5b6fe024eb89ef01094ab8a1a35d9404d25d3c2b214c5669e678162aebd9fc14b0f3484e6b9132904192a576d35
SSDEEP

1536:vj+jsMQMOtEvwDpj5HyCyh7vtRJ4BqKb1knzhvdYE:vCjsIOtEvwDpj5Hv03

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023107-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023107-12.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-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation	2024-02-25_98d578b509c4f52c4f3ad4ad08a16844_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3352	misid.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 2852 wrote to memory of 3352	2852	2024-02-25_98d578b509c4f52c4f3ad4ad08a16844_cryptolocker.exe	87
PID 2852 wrote to memory of 3352	2852	2024-02-25_98d578b509c4f52c4f3ad4ad08a16844_cryptolocker.exe	87
PID 2852 wrote to memory of 3352	2852	2024-02-25_98d578b509c4f52c4f3ad4ad08a16844_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-02-25_98d578b509c4f52c4f3ad4ad08a16844_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-25_98d578b509c4f52c4f3ad4ad08a16844_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2852
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3352

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\misid.exe

Filesize
65KB

MD5
90c8d587abc5214a5f88ddd9c9682071

SHA1
d66b395dcb51a096a301e547b6e772ffb39f953c

SHA256
316dae9b6a873763f8d6116eeef02abaff359e624df6cac321cc0a2126d7df34

SHA512
b2f7a42bd1ea45e278b1d95f0af47b863f7ded719c96c459e7146d5298f8c74fc85f1771f52224fa42bbc6483f4ea8efc5c18960d9b7355abfe935632f46c8f4

Download Submit
memory/2852-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/2852-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/2852-2-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/3352-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3352-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download