2ed3f9b37e2de65761fa0f2bbd63afd4901818010d9d68805b3a3d5fbba00511

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
30/04/2024, 06:48

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General

Target

2024-04-30_f81d2bacf67c66af7c5ac2b2aaa40c42_cryptolocker.exe
Size

35KB
MD5

f81d2bacf67c66af7c5ac2b2aaa40c42
SHA1

0d1a7ef8e352b8ff86915699e625b9a4e27c108d
SHA256

2ed3f9b37e2de65761fa0f2bbd63afd4901818010d9d68805b3a3d5fbba00511
SHA512

5525cbdaf28959223e3dc6f7f225cc5c8cadc2fe98a67dbd62850541cdb3e8e8ced02f83feec15e7e6d2072fe0417cfc2b90dea3eab326bfd5c31309f91b1323
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6ckJp0qAgmEzXKxA+uspNCc:bAvJCYOOvbRPDEgXRc+BAILYT

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b48-12.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-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation	2024-04-30_f81d2bacf67c66af7c5ac2b2aaa40c42_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3668	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 4448 wrote to memory of 3668	4448	2024-04-30_f81d2bacf67c66af7c5ac2b2aaa40c42_cryptolocker.exe	83
PID 4448 wrote to memory of 3668	4448	2024-04-30_f81d2bacf67c66af7c5ac2b2aaa40c42_cryptolocker.exe	83
PID 4448 wrote to memory of 3668	4448	2024-04-30_f81d2bacf67c66af7c5ac2b2aaa40c42_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-04-30_f81d2bacf67c66af7c5ac2b2aaa40c42_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_f81d2bacf67c66af7c5ac2b2aaa40c42_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4448
- C:\Users\Admin\AppData\Local\Temp\demka.exe
  "C:\Users\Admin\AppData\Local\Temp\demka.exe"
  2⤵
  - Executes dropped EXE
  PID:3668

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\demka.exe

Filesize
35KB

MD5
97d901b9971260d8a33129729b757b81

SHA1
de190b1a55171f98ef0863e04658a8c008d34141

SHA256
04a99cbee3b9dcb6df18ea91bc2b0b7465f1097ece796a7958854a9b07bf474b

SHA512
46cd4f5b3bb21af53a80169c67bb215e2fe99b7cf9eaceb7e9d7978d12a9ae7186e3e89b793d6dc8d71bea2a94203e7261f3c37a455617ac1f3c546bce89fbda

Download Submit
memory/3668-25-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4448-0-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/4448-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4448-8-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download