c36eb5b4f24c65bce2684cd6b8837439a70f08c209afab784d8bfa91a7f937a0

Analysis

max time kernel
135s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
04/05/2024, 16:04

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-04_bdc308c547feeaa55cfc2c912f7331c2_cryptolocker.exe
Size

37KB
MD5

bdc308c547feeaa55cfc2c912f7331c2
SHA1

dcc3f914fa61d57856cfb71a3ed35836830837f8
SHA256

c36eb5b4f24c65bce2684cd6b8837439a70f08c209afab784d8bfa91a7f937a0
SHA512

0b9b5c37403f0150ae3729e618b938aeb7eb4cf57ddc0250e599f398d622bdd0fa19a80c722bb6462b2de0405ecbc1a6d9274a1ec6cdbccab9daee3ba76155fd
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6c3l8Sz960SPluhn:bAvJCYOOvbRPDEgXRc3SSz3SPS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0032000000023bb5-12.dat	CryptoLocker_rule2

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-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation	2024-05-04_bdc308c547feeaa55cfc2c912f7331c2_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
4660	demka.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 4952 wrote to memory of 4660	4952	2024-05-04_bdc308c547feeaa55cfc2c912f7331c2_cryptolocker.exe	84
PID 4952 wrote to memory of 4660	4952	2024-05-04_bdc308c547feeaa55cfc2c912f7331c2_cryptolocker.exe	84
PID 4952 wrote to memory of 4660	4952	2024-05-04_bdc308c547feeaa55cfc2c912f7331c2_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-05-04_bdc308c547feeaa55cfc2c912f7331c2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-04_bdc308c547feeaa55cfc2c912f7331c2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4952
- C:\Users\Admin\AppData\Local\Temp\demka.exe
  "C:\Users\Admin\AppData\Local\Temp\demka.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4660

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\demka.exe

Filesize
37KB

MD5
d758223514cc139d1e7e25664b200950

SHA1
add113879abee9b9f4e2a45a2ae05505a9951d53

SHA256
57405b6a50612418ba7586f34e9d2a78e4ec73f46011d8821271d829c1527216

SHA512
ec6613c12cf4e3cb5af570cb665e151203e654ff4115ec43bc4c8a02a1f65b9138752be665836b70546b25d8fc7f0f15d2e3b9e2cf2f91678d6f12f9819907a5

Download Submit
C:\Users\Admin\AppData\Local\Temp\medkem.exe

Filesize
186B

MD5
d84595846731a4304a5f8d4ede711af9

SHA1
68fd41eec30c4bf67be9cea29a50859f052fc00d

SHA256
7348b28096cb9554d5ee7a32e2fd72ebdf23b6f3154c2ab0e6da603df9c1ed5a

SHA512
874e40971dc5b2e597ca852724ab3fdbcb935a9f1e1056e061cf68aedce62a26aec3f4bdb066ca8d5e2511da4f784ec96ae6620532cf6aaa96a8468487d2ff92

Download Submit
memory/4660-25-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/4952-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4952-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4952-8-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download