0af6af3bb37181c3bc690ec676df6903c70925014b24be67d2d5708f096c0f01

Analysis

max time kernel
142s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
29-01-2024 16:41

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General

Target

2024-01-29_ec6414877ffd282086110007f4faa6bc_cryptolocker.exe
Size

40KB
MD5

ec6414877ffd282086110007f4faa6bc
SHA1

0d40d15944cd8411fc14153cef8ce2457e43eff0
SHA256

0af6af3bb37181c3bc690ec676df6903c70925014b24be67d2d5708f096c0f01
SHA512

df684c6218b588af72f14b88ce3d406f549ed381b1ad602753caf14192433e23b3384c4099acd4571c77109c912bf0c48b27b51db8cc5d802eae123d1ff04968
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLenQLJJzu:ZzFbxmLPWQMOtEvwDpjLeU3q

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023233-13.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-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation	2024-01-29_ec6414877ffd282086110007f4faa6bc_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
3152	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 3624 wrote to memory of 3152	3624	2024-01-29_ec6414877ffd282086110007f4faa6bc_cryptolocker.exe	83
PID 3624 wrote to memory of 3152	3624	2024-01-29_ec6414877ffd282086110007f4faa6bc_cryptolocker.exe	83
PID 3624 wrote to memory of 3152	3624	2024-01-29_ec6414877ffd282086110007f4faa6bc_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-01-29_ec6414877ffd282086110007f4faa6bc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-29_ec6414877ffd282086110007f4faa6bc_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3624
- 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:3152

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
40KB

MD5
10694ca5d091339bb26c02e536ce30b3

SHA1
aa28f9a9179cf3c093437d6df8d4ab8bb3cd2aba

SHA256
1a63653d512a62c5b3ddc3951cf90a769de2cacef235b61e131fa236919453bb

SHA512
bd0ba3cfcb252058416f7d0ee745d518babc1030452b7c1759077300907d8cac1e1c61fd4d2b34f68f6917cbefb51f475774ca673e6d594faa46b3a96622948e

Download Submit
memory/3152-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/3152-20-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/3152-19-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/3152-54-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/3624-0-0x00FFFFFF00FFFFFF-0x00FFFFFF00FFFFFF-memory.dmp

Download
memory/3624-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/3624-2-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/3624-3-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download