869f9a6e1a41952ef7801781500f0009ae3c4d18616406d8b5921fe1845b706b

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
13/03/2024, 15:05

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General

Target

2024-03-13_9423351480d2607c77f78f4ce2b2c42b_cryptolocker.exe
Size

38KB
MD5

9423351480d2607c77f78f4ce2b2c42b
SHA1

8ef08ba62e74cb0e4cb84cab63600cfdb25f7e2d
SHA256

869f9a6e1a41952ef7801781500f0009ae3c4d18616406d8b5921fe1845b706b
SHA512

d5fd2da4c2e97f5cbfb4ddca0909f684acf2eb3196858920d11d3603df1ea130b10a385f5598c4b3710a838f1cfa21ece9ef138ccbb202388643269ed2dd2adb
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLenB8vfS:ZzFbxmLPWQMOtEvwDpjLeSfS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023203-13.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-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	2024-03-13_9423351480d2607c77f78f4ce2b2c42b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1076	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 2340 wrote to memory of 1076	2340	2024-03-13_9423351480d2607c77f78f4ce2b2c42b_cryptolocker.exe	87
PID 2340 wrote to memory of 1076	2340	2024-03-13_9423351480d2607c77f78f4ce2b2c42b_cryptolocker.exe	87
PID 2340 wrote to memory of 1076	2340	2024-03-13_9423351480d2607c77f78f4ce2b2c42b_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-03-13_9423351480d2607c77f78f4ce2b2c42b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-13_9423351480d2607c77f78f4ce2b2c42b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1076

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
38KB

MD5
706a88e974b2d276c84346cea401bf37

SHA1
4fe09340cd7f8b352af8a604eb041dd384b86889

SHA256
c41fe0b2f5407a7a0513f0928fbd61841b4fa5ceaa245e764b09f3f82491ad6f

SHA512
5a972b3354e7f1b6328678d024f4d4b8d2fb381d818d26439f98e88f4e3d48bc82b00ada3c4555680f64fc0ec45c993b5be17fb9d9a2ed686153d9bac089ad9f

Download Submit
memory/1076-19-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download
memory/1076-20-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/1076-24-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/2340-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/2340-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/2340-2-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/2340-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/2340-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download