b6764076433276d300481460e2cb1ccb6c5793d21d12ca6fb2b8cae9b899fc8b

Analysis

max time kernel
144s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
27/01/2024, 00:38

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General

Target

2024-01-27_c1306f4f002b1543368ba8a334349f3e_cryptolocker.exe
Size

48KB
MD5

c1306f4f002b1543368ba8a334349f3e
SHA1

dd59964204f91231406c1604d5dab267ea2e15ab
SHA256

b6764076433276d300481460e2cb1ccb6c5793d21d12ca6fb2b8cae9b899fc8b
SHA512

e8f55da9a47cd5f4bc3f5070925345ebb8242df168972ebfc1a0563ba3594e3783c9e677056d2cb85fefd69976e95085571068b7185b74c51c6d61b37ca6418e
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojakNfm:V6a+pOtEvwDpj1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000022480-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000022480-12.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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-01-27_c1306f4f002b1543368ba8a334349f3e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4292	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 1472 wrote to memory of 4292	1472	2024-01-27_c1306f4f002b1543368ba8a334349f3e_cryptolocker.exe	88
PID 1472 wrote to memory of 4292	1472	2024-01-27_c1306f4f002b1543368ba8a334349f3e_cryptolocker.exe	88
PID 1472 wrote to memory of 4292	1472	2024-01-27_c1306f4f002b1543368ba8a334349f3e_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-27_c1306f4f002b1543368ba8a334349f3e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_c1306f4f002b1543368ba8a334349f3e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1472
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4292

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
48KB

MD5
d985eed433bb01916a171f0bce21efb2

SHA1
86dcfcfb65fa7631523242971baec302515a0f93

SHA256
d0bd7ca17efefb3b60beb1f2d08ade6060bb55fc275e7e2ee85b086762a39209

SHA512
55fc585d0890466f28b4ba2656e64c8c77343039a7958683d30f18dfc6ad92e2e7ba77ef1152de457bce22e7977e4d4df3d2b5c8170c0e54fe8a604814679e76

Download Submit
memory/1472-0-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/1472-1-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/1472-2-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/4292-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4292-18-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download