42e06888b9a60fd41bd72296d8d1bb0f8030a79d2b29fd749536ca846700a428

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
30/05/2024, 19:20

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-30_b3295a7ff05ecb42e7822af0cc461775_cryptolocker.exe
Size

54KB
MD5

b3295a7ff05ecb42e7822af0cc461775
SHA1

f14c8b9cf6e12a991839156838aa34bccbdf852a
SHA256

42e06888b9a60fd41bd72296d8d1bb0f8030a79d2b29fd749536ca846700a428
SHA512

ccbcf0b758e0a3c845440f446c76d02221690ec3bedc7a379391aa1ea9def9d623d3b607c598b3934a95f38df78647b4fa8d37906dd3e2ba30b487b24173bf87
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9Xv+mb6uYGExYSa:bIDOw9a0DwitDZzc161Ba

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000500000002326f-12.dat	CryptoLocker_rule2

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-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	2024-05-30_b3295a7ff05ecb42e7822af0cc461775_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1628	lossy.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 1484 wrote to memory of 1628	1484	2024-05-30_b3295a7ff05ecb42e7822af0cc461775_cryptolocker.exe	81
PID 1484 wrote to memory of 1628	1484	2024-05-30_b3295a7ff05ecb42e7822af0cc461775_cryptolocker.exe	81
PID 1484 wrote to memory of 1628	1484	2024-05-30_b3295a7ff05ecb42e7822af0cc461775_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-05-30_b3295a7ff05ecb42e7822af0cc461775_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-30_b3295a7ff05ecb42e7822af0cc461775_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1484
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:1628

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\lossy.exe

Filesize
54KB

MD5
41be067d89e54f63b74e69261ea9916c

SHA1
e0d8417ed923bd061758c2cc839f5ece9e436f77

SHA256
ed7bc0711ca7e2601bb01841a2ccc6ee8d78130301848d2076541e94b753db54

SHA512
e4c8a08c55ff117c78735c3b435727c1177384390d89e759fa63a49fbc4cba6206731d5d046109a4c3420d4675990ba830cbd598205ca57dba52fcea559db7a9

Download Submit
memory/1484-0-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/1484-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/1484-8-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/1628-17-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/1628-23-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download