705e1baea869f43461fa22989cca17194c265143afac6fc7b1190352cde558be

Analysis

max time kernel
142s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/01/2024, 21:22

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General

Target

2024-01-25_11761faca7732284df138f9a8255eb38_cryptolocker.exe
Size

34KB
MD5

11761faca7732284df138f9a8255eb38
SHA1

3b18e1f9be60c2626d667b878976ce768dba5698
SHA256

705e1baea869f43461fa22989cca17194c265143afac6fc7b1190352cde558be
SHA512

ef77f68a4e9ed9ce1231664fbc5902f8c1ca0534fdcee31d200702081949fa020790d0fc9906b419be0a5fad560656ac4f508c348e6bd948aab0ec8c081d6c06
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLezd:ZzFbxmLPWQMOtEvwDpjLezd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231f1-13.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-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation	2024-01-25_11761faca7732284df138f9a8255eb38_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
2668	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 4244 wrote to memory of 2668	4244	2024-01-25_11761faca7732284df138f9a8255eb38_cryptolocker.exe	88
PID 4244 wrote to memory of 2668	4244	2024-01-25_11761faca7732284df138f9a8255eb38_cryptolocker.exe	88
PID 4244 wrote to memory of 2668	4244	2024-01-25_11761faca7732284df138f9a8255eb38_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-25_11761faca7732284df138f9a8255eb38_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_11761faca7732284df138f9a8255eb38_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4244
- 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:2668

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
34KB

MD5
5914350b326da34e97b82bdbe499c465

SHA1
1f8b107db0f442f05ed0d2eea5785219acc049f6

SHA256
f5ea7d0ec4bd50ce87c7ec5713aa6b882ad7d28a1d26c1bb8d89a54de54298be

SHA512
43c530670061a40a0ddb7620bf98ebaf9d4bcaf8c80acf288ee4901dde3ae7e23f61bb14352836e0938d41bb7f119a9746627c5be4b17fe28c879733008022bd

Download Submit
memory/2668-17-0x0000000000450000-0x0000000000453000-memory.dmp

Filesize
12KB

Download
memory/2668-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2668-21-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4244-0-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download
memory/4244-1-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/4244-2-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/4244-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/4244-20-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download