15f465fafedea728ea08336230af17eabcf888be4a954f822495f9255256fb4a

Analysis

max time kernel
92s
max time network
113s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28/02/2024, 09:30

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General

Target

2024-02-28_3ba8285760e276400c94bed36a927be7_cryptolocker.exe
Size

39KB
MD5

3ba8285760e276400c94bed36a927be7
SHA1

1f793d9e94073bbc03d932aea0c82f9d8994d9da
SHA256

15f465fafedea728ea08336230af17eabcf888be4a954f822495f9255256fb4a
SHA512

8b8e6004e68722d1f1a6297fe308ecb6f3cb4f47a728032bda19ece0fb9a13d4202155524cd17b65364353fe338e681ca01604d9fe9b9638d9c7239fd48c7831
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLen7n+0:ZzFbxmLPWQMOtEvwDpjLer

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002320b-13.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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	2024-02-28_3ba8285760e276400c94bed36a927be7_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
3720	misid.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 228 wrote to memory of 3720	228	2024-02-28_3ba8285760e276400c94bed36a927be7_cryptolocker.exe	89
PID 228 wrote to memory of 3720	228	2024-02-28_3ba8285760e276400c94bed36a927be7_cryptolocker.exe	89
PID 228 wrote to memory of 3720	228	2024-02-28_3ba8285760e276400c94bed36a927be7_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-02-28_3ba8285760e276400c94bed36a927be7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_3ba8285760e276400c94bed36a927be7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:228
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:3720

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\misid.exe

Filesize
39KB

MD5
987038df49b7f0367c3876cdcc91419e

SHA1
cbbadad24e11e4397bf4a9a098adedf1c458f1fa

SHA256
b709a0d7e0e1f512b472c1f5f97cff4491838587aa11983ebdfd0b48db161057

SHA512
ae39b72237c42c020a045de725c05b191375ac47c3a27ed3196e76c7f0bf1f7c692476cefd4ce175bba26ace1acbe2dac378a468c873246783bece512e5514cb

Download Submit
memory/228-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/228-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/228-2-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/228-3-0x0000000000710000-0x0000000000716000-memory.dmp

Filesize
24KB

Download
memory/228-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/3720-18-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/3720-20-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/3720-21-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download