a66da165eb804d142a6ccf1043010b7bc8cc14c616ce1b778a4abef529d01281

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
19/03/2024, 00:46

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General

Target

2024-03-19_36195f3e680bd4c5b4cb50de6dc9614c_cryptolocker.exe
Size

49KB
MD5

36195f3e680bd4c5b4cb50de6dc9614c
SHA1

8bbdfc800689e22f4c5c290d83cb8c906776cccc
SHA256

a66da165eb804d142a6ccf1043010b7bc8cc14c616ce1b778a4abef529d01281
SHA512

d99600b841f9c8dcbb99f8348c408cacc2f5d0bb3719f1b2ff2fba2186a9e1cd1cbba286bb224ecf13b0b0b7a6012ea8efecece2b04065ee8c20c7de04ba7976
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hQcEp7B9:bgGYcA/53GAA6y37nbQb9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	2024-03-19_36195f3e680bd4c5b4cb50de6dc9614c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3992	hasfj.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 2252 wrote to memory of 3992	2252	2024-03-19_36195f3e680bd4c5b4cb50de6dc9614c_cryptolocker.exe	87
PID 2252 wrote to memory of 3992	2252	2024-03-19_36195f3e680bd4c5b4cb50de6dc9614c_cryptolocker.exe	87
PID 2252 wrote to memory of 3992	2252	2024-03-19_36195f3e680bd4c5b4cb50de6dc9614c_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-03-19_36195f3e680bd4c5b4cb50de6dc9614c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_36195f3e680bd4c5b4cb50de6dc9614c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3992

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\hasfj.exe

Filesize
49KB

MD5
cbed2dbf83025b42920b8c1a97eb3340

SHA1
9338f535f005b3b2f53ede47c1ccdd8340dec5cc

SHA256
29ca318b8384f9007c00096fefc0e5a2ed6e0c8aa3c2065e5da0ce5a9dd2bc40

SHA512
0deb376312ff137cd12d9170b52b9a5eb7d4854a0652a9cdde8ba3a3fe20cf3760fbba0329ec37aaeab7d56c0efa0ea28c756dc5ebe602b60faceab3ba0d5ac2

Download Submit
memory/2252-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2252-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2252-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/3992-19-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/3992-17-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download