89f63b83e2ac282a456667f94c218e5ab24a3f28e7969be9cf870600551323bc

Analysis

max time kernel
144s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
13/02/2024, 04:02

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General

Target

2024-02-13_32b64ef8c1063f7d28d4d87ff6f8df71_cryptolocker.exe
Size

45KB
MD5

32b64ef8c1063f7d28d4d87ff6f8df71
SHA1

23baec9e85a4a96a68608c26302fc2bb5bd0e00e
SHA256

89f63b83e2ac282a456667f94c218e5ab24a3f28e7969be9cf870600551323bc
SHA512

247dd9ff4343edc97d4d176770e4163f441333f472fcd4eaf40cdfd994086e7c0eab1a605cd925bd4db4dd8f47343528b9f5fd911ad2aca6914f5d4dda5fb47e
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8z2iaSIO/WZrEu/d+qmsUHQ1wsx:ZzFbxmLPWQMOtEvwDpj386Sj/WprqQ1P

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002324a-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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-02-13_32b64ef8c1063f7d28d4d87ff6f8df71_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
3000	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 640 wrote to memory of 3000	640	2024-02-13_32b64ef8c1063f7d28d4d87ff6f8df71_cryptolocker.exe	85
PID 640 wrote to memory of 3000	640	2024-02-13_32b64ef8c1063f7d28d4d87ff6f8df71_cryptolocker.exe	85
PID 640 wrote to memory of 3000	640	2024-02-13_32b64ef8c1063f7d28d4d87ff6f8df71_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-13_32b64ef8c1063f7d28d4d87ff6f8df71_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-13_32b64ef8c1063f7d28d4d87ff6f8df71_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:640
- 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:3000

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
45KB

MD5
7fd3ddd562509cba636bc951b85323f1

SHA1
c00c22cfb2e6599b331d195b943a59298370526e

SHA256
79bc17205b0aa3ef696f69f8279fbdb7c5e0c98728bf28a99f5d3b8c5b371d94

SHA512
e33b193bd38dd55017246680376626c97254105a3b6d60f4b922f2701968aeaa7c5d4a92df1b5451dda9aef91e2b4b1b2492af4115c5b4b5c51b76d8dd39550c

Download Submit
memory/640-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/640-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/640-2-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/640-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/640-18-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/3000-17-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download
memory/3000-20-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/3000-22-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download