3d91fd19488fe7e9783b978bf44001789fb935d55f2a028f68de6663cd926fa7

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
08-03-2024 06:00

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General

Target

2024-03-08_8a23343c8e9b8ac8a58cfbddd15103a2_cryptolocker.exe
Size

60KB
MD5

8a23343c8e9b8ac8a58cfbddd15103a2
SHA1

a84099a73a5c5fbc03a46a2f7ff772ccb38023c3
SHA256

3d91fd19488fe7e9783b978bf44001789fb935d55f2a028f68de6663cd926fa7
SHA512

338109e5ba44da2077eda316d1c1d4a469f07136d4919a9e6b39145351e0fdc1cd54fde2a645dd8614a0d6667e4d9236b285ec576aa8722a4802f99da447f5a6
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3rFC0wl:ZVxkGOtEvwDpjcai

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e5eb-13.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 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	2024-03-08_8a23343c8e9b8ac8a58cfbddd15103a2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2480	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 1400 wrote to memory of 2480	1400	2024-03-08_8a23343c8e9b8ac8a58cfbddd15103a2_cryptolocker.exe	87
PID 1400 wrote to memory of 2480	1400	2024-03-08_8a23343c8e9b8ac8a58cfbddd15103a2_cryptolocker.exe	87
PID 1400 wrote to memory of 2480	1400	2024-03-08_8a23343c8e9b8ac8a58cfbddd15103a2_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-03-08_8a23343c8e9b8ac8a58cfbddd15103a2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_8a23343c8e9b8ac8a58cfbddd15103a2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1400
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2480

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
61KB

MD5
8c898379a61bcd65cd7248cf1c394e82

SHA1
e685bca85e23906ae1dbfdb45d1911f1ad13087b

SHA256
3e71701c9b7dbccac9dd4357123e856f930ef35ccd4a22e2a513c7b945c79727

SHA512
92a85ccc81a6588c17e0c4bbf6c05d72b21c1123dcae28556a2bdd3d83db020f4545d40ae9c5b33c7ac7453edea4b10cf7fb660117ec57888d64b4cab4abfccf

Download Submit
memory/1400-0-0x0000000000450000-0x0000000000453000-memory.dmp

Filesize
12KB

Download
memory/1400-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1400-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1400-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1400-17-0x0000000000450000-0x0000000000453000-memory.dmp

Filesize
12KB

Download