b14277c2cb7f04becfcffa947345ce187f7434369cf693e6d8534d9949371c38

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
18/02/2024, 08:27

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-18_1c9e388849e3a62ec5d45e018a6ead86_cryptolocker.exe
Size

62KB
MD5

1c9e388849e3a62ec5d45e018a6ead86
SHA1

d0e6ba4b1aa06962ceca3c02015eed624e8990fb
SHA256

b14277c2cb7f04becfcffa947345ce187f7434369cf693e6d8534d9949371c38
SHA512

43af39b921cc21a0983f76dd8453710b9cf1b2df5353a98d0e82755a3bd9b8480c50f4df13b349a7a301da7e1f4a9e81badf3ebbf13983586b55b2df02c15bd1
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2l9tMPvda:TCjsIOtEvwDpj5HE/OUHnSMYX

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/2628-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0007000000023213-13.dat	CryptoLocker_rule2
behavioral2/memory/2628-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/2528-18-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/2528-27-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/2628-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x0007000000023213-13.dat	CryptoLocker_set1
behavioral2/memory/2628-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral2/memory/2528-18-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral2/memory/2528-27-0x0000000000500000-0x000000000050E000-memory.dmp	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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-18_1c9e388849e3a62ec5d45e018a6ead86_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2528	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 2628 wrote to memory of 2528	2628	2024-02-18_1c9e388849e3a62ec5d45e018a6ead86_cryptolocker.exe	84
PID 2628 wrote to memory of 2528	2628	2024-02-18_1c9e388849e3a62ec5d45e018a6ead86_cryptolocker.exe	84
PID 2628 wrote to memory of 2528	2628	2024-02-18_1c9e388849e3a62ec5d45e018a6ead86_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-18_1c9e388849e3a62ec5d45e018a6ead86_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_1c9e388849e3a62ec5d45e018a6ead86_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2628
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2528

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
62KB

MD5
7c874a1bbcc0044e5724edda05eb1081

SHA1
d12eb68393442cc108d66f94c761bca18f4b2c4c

SHA256
54641053bb9b3b4afa9ce1526011f2be2c9a5f3307856746aef92e74d317eb0a

SHA512
7eb37a37c8ba740762c2ac910ecee0e4db5016560a3fcffd9c79e18d7830bed9881f6c2b96e9bfde712f9834bfa9a177477843e145b59484e9702295a15010fb

Download Submit
memory/2528-18-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2528-20-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/2528-22-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/2528-27-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2628-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2628-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2628-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2628-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2628-17-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download