559ff581948703b8d8f7c49a2ce0fa700ac2c74adb4ed392ba5279d2db0b3aa0

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
22-02-2024 00:46

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General

Target

2024-02-22_a404f909d81a36e04179c0622d2b124a_cryptolocker.exe
Size

32KB
MD5

a404f909d81a36e04179c0622d2b124a
SHA1

0a66286b10daa0013b78fea1156fae32697fe9bc
SHA256

559ff581948703b8d8f7c49a2ce0fa700ac2c74adb4ed392ba5279d2db0b3aa0
SHA512

2fae6e53be1f5f24d9cf99e8953338d1cb6f982af7393dd3bf6ab7601136235b9b9ab135e16354c07fbf30199c90eeffcfd83a06c25ea6fef220ada5b22115a5
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6cuM98XF:bAvJCYOOvbRPDEgXRcuM981

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231f4-12.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-1-5-21-2132103209-3755304320-2959162027-1000\Control Panel\International\Geo\Nation	2024-02-22_a404f909d81a36e04179c0622d2b124a_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
2036	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 4480 wrote to memory of 2036	4480	2024-02-22_a404f909d81a36e04179c0622d2b124a_cryptolocker.exe	85
PID 4480 wrote to memory of 2036	4480	2024-02-22_a404f909d81a36e04179c0622d2b124a_cryptolocker.exe	85
PID 4480 wrote to memory of 2036	4480	2024-02-22_a404f909d81a36e04179c0622d2b124a_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-22_a404f909d81a36e04179c0622d2b124a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_a404f909d81a36e04179c0622d2b124a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4480
- 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:2036

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

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Downloads

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

Filesize
32KB

MD5
e562835294b9fa9665dcc8e2e85af1f9

SHA1
a1d20655b226f37998f68b66911726fd2a4cef5e

SHA256
70cbcd60bc8aae34ba3b964cc656aa95aff7e4bf1d58f1dac20016fe8091bdaf

SHA512
5069404400fa1fc76b08365866b4b1cfd151ee8c6dbd48cc9b50f7b0f99bf736fb837f3e014b7c886297e6212f19bf7b603cb53111f5be0c88215b31a3bbf167

Download Submit
memory/2036-20-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/4480-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4480-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4480-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download