8a2d156fd20fdc14abcb7237cf80c270bbd78b2655baab1a5eca37d7ca874c0b

Analysis

max time kernel
149s
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
12-03-2024 05:38

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General

Target

2024-03-12_6d91c3adac9f3ce0f146406001e09fa3_cryptolocker.exe
Size

60KB
MD5

6d91c3adac9f3ce0f146406001e09fa3
SHA1

dc73a1807cd4c66e475ae152475f062e51e2d689
SHA256

8a2d156fd20fdc14abcb7237cf80c270bbd78b2655baab1a5eca37d7ca874c0b
SHA512

5a574ebef6b5162b49ad8b3950a2f6d8e861334c671e489e2fa3a89d08f9b9b6cf2f2bb124c4520edd6086cec1a33492784cb9084d1e023cf091d61ab81b1a1b
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJT/Er:ZVxkGOtEvwDpjcO4

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	2024-03-12_6d91c3adac9f3ce0f146406001e09fa3_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4016	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 4228 wrote to memory of 4016	4228	2024-03-12_6d91c3adac9f3ce0f146406001e09fa3_cryptolocker.exe	88
PID 4228 wrote to memory of 4016	4228	2024-03-12_6d91c3adac9f3ce0f146406001e09fa3_cryptolocker.exe	88
PID 4228 wrote to memory of 4016	4228	2024-03-12_6d91c3adac9f3ce0f146406001e09fa3_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-12_6d91c3adac9f3ce0f146406001e09fa3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_6d91c3adac9f3ce0f146406001e09fa3_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4228
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4016

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
60KB

MD5
083710667593f7d4b94c530b54fb4284

SHA1
c12ee3aaf78c7e367229ff757a00d65184fff9bf

SHA256
3a8cbd61fc7ccb67d77cc0758dd04bea1f755fbcfcc459910112f8d76652f554

SHA512
e6f4faef5b8284eac90a1731090bdda95ac778d486530be829d4c1a022fafeef5175fcc35e37fa98e6cd710a2a59973355c12cd772265dd159cb05a3ca65fe31

Download Submit
memory/4016-17-0x0000000000450000-0x0000000000453000-memory.dmp

Filesize
12KB

Download
memory/4016-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4016-22-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4016-27-0x0000000000450000-0x0000000000453000-memory.dmp

Filesize
12KB

Download
memory/4228-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4228-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4228-2-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4228-3-0x0000000000860000-0x0000000000866000-memory.dmp

Filesize
24KB

Download
memory/4228-18-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download