1f9821e569c6d0159968387db1a002dff679f0dece9228355bd60e60bc59c098

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19-02-2024 03:47

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General

Target

2024-02-19_93705e3dcb44f619e56f97e3da293f99_cryptolocker.exe
Size

43KB
MD5

93705e3dcb44f619e56f97e3da293f99
SHA1

8b99ccd4501dd3fe4742072e3a54c8c189b6d9b1
SHA256

1f9821e569c6d0159968387db1a002dff679f0dece9228355bd60e60bc59c098
SHA512

63da327b81477ece9f4134c69adf5c904304540aa9fdf56c3ccb6723ebf675684f9075deab9cb6bb81f100a80fec58f19e22802131afd4400c97af4609517bd8
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4REL+cc66nkpbVy:vj+jsMQMOtEvwDpj5HW5IiZy

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023220-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023220-12.dat	CryptoLocker_set1

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-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	2024-02-19_93705e3dcb44f619e56f97e3da293f99_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4884	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 3152 wrote to memory of 4884	3152	2024-02-19_93705e3dcb44f619e56f97e3da293f99_cryptolocker.exe	85
PID 3152 wrote to memory of 4884	3152	2024-02-19_93705e3dcb44f619e56f97e3da293f99_cryptolocker.exe	85
PID 3152 wrote to memory of 4884	3152	2024-02-19_93705e3dcb44f619e56f97e3da293f99_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-19_93705e3dcb44f619e56f97e3da293f99_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_93705e3dcb44f619e56f97e3da293f99_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3152
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4884

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
43KB

MD5
b45af18751c2dda46b7b98e92c9ca888

SHA1
a240f8b332e3aaf28a3c5d3c47e6063be66e5aa5

SHA256
23abe1f855f8dab1752e373ffa944cd264186392c5605c6f6c8157ab20711cf5

SHA512
88325662473c70484f81b04f65ed21c6da2c30f70a5e5dc1aa1b0bddd513fff198c6a04938d411674fe647285bd6d0ab47aece25a9bdbb06b4fe1dd5cd2dd122

Download Submit
memory/3152-0-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/3152-1-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/3152-2-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download
memory/4884-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4884-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download