200f63d2cf94209abf33bad87c590b393b485a0308f0b1875c5651c848a2c9e1

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
18/03/2024, 20:33

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General

Target

2024-03-18_6f6e71fb1259f94a45f5192f14a6ba5b_cryptolocker.exe
Size

40KB
MD5

6f6e71fb1259f94a45f5192f14a6ba5b
SHA1

f57dafd1a9ae50c1d467041c1ae2048da8e97c02
SHA256

200f63d2cf94209abf33bad87c590b393b485a0308f0b1875c5651c848a2c9e1
SHA512

2cf67aff7bdc5a2d3a9caae9b0456b22fab0481fa454c84297b7b8c858f6f92d4beb8895fe7fb559321873ead73762db0aea623685e43ff12801309c61dc5813
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzoiM8Nekdvjl9V50i3NbF0Qk/:bAvJCYOOvbRPDEgXrNekd7l94i3pF0p

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000200000001f656-12.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-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation	2024-03-18_6f6e71fb1259f94a45f5192f14a6ba5b_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
636	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 4368 wrote to memory of 636	4368	2024-03-18_6f6e71fb1259f94a45f5192f14a6ba5b_cryptolocker.exe	88
PID 4368 wrote to memory of 636	4368	2024-03-18_6f6e71fb1259f94a45f5192f14a6ba5b_cryptolocker.exe	88
PID 4368 wrote to memory of 636	4368	2024-03-18_6f6e71fb1259f94a45f5192f14a6ba5b_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-18_6f6e71fb1259f94a45f5192f14a6ba5b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-18_6f6e71fb1259f94a45f5192f14a6ba5b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4368
- 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:636

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
40KB

MD5
4ed56e5cb5a2bb07e18dea05bf6dc14a

SHA1
0c39abaf2be74ee230560edf0915c28dec9508ea

SHA256
4a0341ebf486e4250b847ae8eac093bdc2579e689e91ced55e40c3c5297ae431

SHA512
61b77d0cce693304a50a7c08a34612b113e167d07e36ba32ef6217682d02dc21ccadedb7f369b3a69fa37e46824f070b851412541ae8c81d780649d5d9544d20

Download Submit
memory/636-20-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/4368-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4368-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4368-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download