6ff1b0dc1812b76dccb26f0dcc3fc48dce138395bc399afe721a176a4d48d708

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
28/05/2024, 16:28

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General

Target

2024-05-28_66ef7c14082304efe02091ea03aafb67_cryptolocker.exe
Size

45KB
MD5

66ef7c14082304efe02091ea03aafb67
SHA1

6c21aea174684f1fe8f96e3ac16a83d60fc187d4
SHA256

6ff1b0dc1812b76dccb26f0dcc3fc48dce138395bc399afe721a176a4d48d708
SHA512

1c39d06b1cad9ff9d87af56d8618862eb2e00c421097601db6e2e21f20babccbf6505531921f1765d85161cbbb0d6f78ea0e7bf2a69d7f5df4f6c06e9e63ab87
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9E:X6QFElP6n+gJQMOtEvwDpjBmzDkWD6

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000b0000000232f0-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000b0000000232f0-12.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-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	2024-05-28_66ef7c14082304efe02091ea03aafb67_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1392	asih.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 2360 wrote to memory of 1392	2360	2024-05-28_66ef7c14082304efe02091ea03aafb67_cryptolocker.exe	81
PID 2360 wrote to memory of 1392	2360	2024-05-28_66ef7c14082304efe02091ea03aafb67_cryptolocker.exe	81
PID 2360 wrote to memory of 1392	2360	2024-05-28_66ef7c14082304efe02091ea03aafb67_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-05-28_66ef7c14082304efe02091ea03aafb67_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-28_66ef7c14082304efe02091ea03aafb67_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1392

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\asih.exe

Filesize
45KB

MD5
d375c1a035374e1d9333ef2860ed8a03

SHA1
641904b91daf67daab4a99f9a203ac6b89e45d60

SHA256
cb88aec2012e90d0f6c9fbb0132a02fcf627aaea5665165552e5cf78f0c7e802

SHA512
6b6a75464e6a0ee5f0be3e480b922d6d187933f956b742c008e7e518673c2a07a6332b12bba52e941973667db1fc004b6c2e0ceae4154b06ca89dbaebf9128b1

Download Submit
memory/1392-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1392-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2360-0-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/2360-1-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/2360-8-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download