f9db999b667ffaed0c1328ed930358934eb30fbdd79b2a368421094c74896441

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
15/04/2024, 21:30

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General

Target

2024-04-15_6f4111c5cc75a1b1822ee8fb4a2e0cb9_cryptolocker.exe
Size

126KB
MD5

6f4111c5cc75a1b1822ee8fb4a2e0cb9
SHA1

d39a827a95b2be487dca1a63af58e00c54d85101
SHA256

f9db999b667ffaed0c1328ed930358934eb30fbdd79b2a368421094c74896441
SHA512

176afa2576f528dccefd61e002334017f2ccbcb1f2e1ef4d3bfa8150940e1c6f29beb53662202ab66e6c58a23de44813534a537360ae9ca395cffc89dad26c2f
SSDEEP

1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxE4qdp:vCA9OtEvwDpjp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x001c00000001e97e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x001c00000001e97e-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-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation	2024-04-15_6f4111c5cc75a1b1822ee8fb4a2e0cb9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
5052	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 3904 wrote to memory of 5052	3904	2024-04-15_6f4111c5cc75a1b1822ee8fb4a2e0cb9_cryptolocker.exe	85
PID 3904 wrote to memory of 5052	3904	2024-04-15_6f4111c5cc75a1b1822ee8fb4a2e0cb9_cryptolocker.exe	85
PID 3904 wrote to memory of 5052	3904	2024-04-15_6f4111c5cc75a1b1822ee8fb4a2e0cb9_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-04-15_6f4111c5cc75a1b1822ee8fb4a2e0cb9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_6f4111c5cc75a1b1822ee8fb4a2e0cb9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3904
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:5052

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
126KB

MD5
a7ab2dcd44871c05d89bb418b7e1d0cc

SHA1
e727236a91f4004d7ca0a121c21c414f4759448f

SHA256
0d70cd3378c634d4838f645ae98f804353d82b72f901520774717e400b4ce2e1

SHA512
3022663c2288c0a870f1276ff93c8465ff5480247e921734d8f874bc50f0a3fdb5e822b85655d0722bc894cd1c04addc5a635341694efc516d8b2bac450aa3f0

Download Submit
memory/3904-0-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/3904-1-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/3904-2-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/5052-17-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/5052-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download