b50be561bfd74daf8e39b3b953a00033f719684ade24659814ed86c664c22ba5

Analysis

max time kernel
145s
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
14-02-2024 16:56

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-14_6a0217fba332a50f7a1be6142fdee6c4_cryptolocker.exe
Size

69KB
MD5

6a0217fba332a50f7a1be6142fdee6c4
SHA1

522ec9203b25a55bb7c07be125767f17c5a844c8
SHA256

b50be561bfd74daf8e39b3b953a00033f719684ade24659814ed86c664c22ba5
SHA512

20e35a50758bd85ce4e654acbe3fc94ff766ae40ac751ce296b5345b97f325e7f9e3475c9f122ab29a1cf5f799856d2985b333d76f230b1c43ac88a75a0296c1
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4wYPsED3VK2+ZtyOjgO4r9vFAg2rqk63YgW:vj+jsMQMOtEvwDpj5HwYYTjipvF2hV

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023226-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023226-12.dat	CryptoLocker_set1

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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-14_6a0217fba332a50f7a1be6142fdee6c4_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
3556	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 756 wrote to memory of 3556	756	2024-02-14_6a0217fba332a50f7a1be6142fdee6c4_cryptolocker.exe	84
PID 756 wrote to memory of 3556	756	2024-02-14_6a0217fba332a50f7a1be6142fdee6c4_cryptolocker.exe	84
PID 756 wrote to memory of 3556	756	2024-02-14_6a0217fba332a50f7a1be6142fdee6c4_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-14_6a0217fba332a50f7a1be6142fdee6c4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_6a0217fba332a50f7a1be6142fdee6c4_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:756
- 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:3556

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
69KB

MD5
b703297f0bb52ad5875c63e7766fa71a

SHA1
24f1266ee7f7c10adbf6027cfd26ab5e35dafffa

SHA256
b4506ef8b7c381bfb58d25c7bcb78fb3d47a4cfe3018e37eaf4fc79f7d69728a

SHA512
3fa4a605ec6195d88b4dc5e0c4151d759d1c4fe61677ccab50f416ec9465653395938415568a21f4c589d2d7e47e2ec6dea899f7946f76c19ee71e4e45a64818

Download Submit
C:\Users\Admin\AppData\Local\Temp\misids.exe

Filesize
315B

MD5
a34ac19f4afae63adc5d2f7bc970c07f

SHA1
a82190fc530c265aa40a045c21770d967f4767b8

SHA256
d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

SHA512
42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

Download Submit
memory/756-0-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download
memory/756-1-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download
memory/756-2-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/3556-17-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

Filesize
24KB

Download
memory/3556-23-0x0000000001FD0000-0x0000000001FD6000-memory.dmp

Filesize
24KB

Download