2c8189bd5cd0b8b045af4655b729172653563ee566b62e66c83fcf610a27337f

Analysis

max time kernel
150s
max time network
180s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
18/01/2024, 23:29

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General

Target

2024-01-18_e299a2ba930db07ed7510258c4027d69_cryptolocker.exe
Size

31KB
MD5

e299a2ba930db07ed7510258c4027d69
SHA1

3bb16fb03b696da8712ceca0049f6791ce6d1621
SHA256

2c8189bd5cd0b8b045af4655b729172653563ee566b62e66c83fcf610a27337f
SHA512

e7d5c095593acf47f255fac513b649d140b7e0bc96b95273455336820ab0f08ad6b480096793144f8f619c7ed3bea061bd1950e8727fa41dcf5e7e82e66a014c
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6ckJp0qAMubY:bAvJCYOOvbRPDEgXRc+BA/bY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000900000002312c-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-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation	2024-01-18_e299a2ba930db07ed7510258c4027d69_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
3704	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 1944 wrote to memory of 3704	1944	2024-01-18_e299a2ba930db07ed7510258c4027d69_cryptolocker.exe	90
PID 1944 wrote to memory of 3704	1944	2024-01-18_e299a2ba930db07ed7510258c4027d69_cryptolocker.exe	90
PID 1944 wrote to memory of 3704	1944	2024-01-18_e299a2ba930db07ed7510258c4027d69_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-01-18_e299a2ba930db07ed7510258c4027d69_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-18_e299a2ba930db07ed7510258c4027d69_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1944
- 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:3704

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
31KB

MD5
5a5fa8be10669907ab021b69ad8f41e5

SHA1
2e6aa93f37edc31b49721741921450d90b1d923e

SHA256
c769602c4b7581bcb48f3bd27608b4dffe0f413a5a26226cda0dbd90dabe21da

SHA512
fda6a3e58b9b81a7cda32391ec87e501b73e12a1ec9a9ec98611ca93ed7589a66f3a8ce5432729957bb1bc81d38c64f63d88bfbd0d68f2a538c554b45e09ab4f

Download Submit
memory/1944-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/1944-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/1944-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3704-26-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download