7ddd1f4ac5ad5a9b485f4ae04bc5bdd3fc7a5c1cc6ed6684198ccd6866e91aeb

Analysis

max time kernel
137s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
29/01/2024, 15:24

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General

Target

2024-01-29_05cc92060bc92ff76ad998dcda2ddd92_cryptolocker.exe
Size

122KB
MD5

05cc92060bc92ff76ad998dcda2ddd92
SHA1

48d591ac0a88d12c075c88cf6373cf34f3f53acc
SHA256

7ddd1f4ac5ad5a9b485f4ae04bc5bdd3fc7a5c1cc6ed6684198ccd6866e91aeb
SHA512

46a7b386243f47bc213d8bb726d219d528c15e71cf2d2bc462358c07ebeba04868e9c7f59dc6c16cb2fa1089c051293d81273bf9f92f7d970a188cc8e999e689
SSDEEP

768:gUQz7yVEhs9+4T/1bytOOtEvwDpjNbZ7uyA36S7MpxRIIXVe3mU9TYwlOBTZ+mue:gUj+AIMOtEvwDpjNbwQEIPlemUhYpUe

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023209-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023209-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 2 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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	2024-01-29_05cc92060bc92ff76ad998dcda2ddd92_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
2404	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 3868 wrote to memory of 2404	3868	2024-01-29_05cc92060bc92ff76ad998dcda2ddd92_cryptolocker.exe	44
PID 3868 wrote to memory of 2404	3868	2024-01-29_05cc92060bc92ff76ad998dcda2ddd92_cryptolocker.exe	44
PID 3868 wrote to memory of 2404	3868	2024-01-29_05cc92060bc92ff76ad998dcda2ddd92_cryptolocker.exe	44

C:\Users\Admin\AppData\Local\Temp\2024-01-29_05cc92060bc92ff76ad998dcda2ddd92_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-29_05cc92060bc92ff76ad998dcda2ddd92_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3868
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:2404

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
122KB

MD5
60677315b25dac6c759c6fc053dd58b0

SHA1
4512f97a90db70bdde0729e35bb219baa8c7c925

SHA256
cf7deeb0d31c589bb089c50e8cfb0211211df9178baa5d5a5d62a0247b3136de

SHA512
03d9c7bc18c5606044ae8fca05837b864268271f821d2668e6337e8f97c8441be6553eecf1870fe580948d50efeb46d051d5bda50a956e59c8cad70dca7a57f6

Download Submit
memory/2404-17-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/2404-23-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/3868-1-0x0000000002310000-0x0000000002316000-memory.dmp

Filesize
24KB

Download
memory/3868-0-0x0000000002310000-0x0000000002316000-memory.dmp

Filesize
24KB

Download
memory/3868-2-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download