16970ed2a91a2f9ae941db803f7f872b566e895039607a0475c4c2ba542441be

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
25-02-2024 13:35

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General

Target

2024-02-25_6b0ded22dc377fbe53a736896fa6b4aa_cryptolocker.exe
Size

33KB
MD5

6b0ded22dc377fbe53a736896fa6b4aa
SHA1

4bc0b29ed2de87cf9af360ae0677a02d4b1344ab
SHA256

16970ed2a91a2f9ae941db803f7f872b566e895039607a0475c4c2ba542441be
SHA512

6cabb66295498ff0d27cc1e324b8d6a32c850ccc5573078899c04a3d98cbe35c6cfb6cfa69cbb772a7ef645ad12f753748234c1949d6d007ad6c7eaac0dfc64e
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6cuM93iz:bAvJCYOOvbRPDEgXRcuM92

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000231ee-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-1-5-21-3316742141-2240921845-2885234760-1000\Control Panel\International\Geo\Nation	demka.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3316742141-2240921845-2885234760-1000\Control Panel\International\Geo\Nation	2024-02-25_6b0ded22dc377fbe53a736896fa6b4aa_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2376	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 4828 wrote to memory of 2376	4828	2024-02-25_6b0ded22dc377fbe53a736896fa6b4aa_cryptolocker.exe	89
PID 4828 wrote to memory of 2376	4828	2024-02-25_6b0ded22dc377fbe53a736896fa6b4aa_cryptolocker.exe	89
PID 4828 wrote to memory of 2376	4828	2024-02-25_6b0ded22dc377fbe53a736896fa6b4aa_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-02-25_6b0ded22dc377fbe53a736896fa6b4aa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-25_6b0ded22dc377fbe53a736896fa6b4aa_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4828
- 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:2376

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
33KB

MD5
82040b41a78a3fc50b6043b23c1d0c15

SHA1
50bb614561613559f94aef14ef634afc4778ab82

SHA256
069f12b0aa9c4437c9e5161709aed144274f6cff8c97202251c7e1f8e2958c5f

SHA512
e253a8f56c1b1dc14cf0514557652c71e8bf2e3bf7ba5c88ac33a1d819314539968f46618710af4f11fb8007321f7eddb459396a4d936729ad3f2b707b4505f5

Download Submit
memory/2376-22-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/4828-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/4828-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/4828-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download