9cbfb97c607ccaee810995742f52d44d96751407fbd3da248f463bd724b6a7ef

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
14/03/2024, 00:33

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-03-14_414d5a11af79ace231480c4cb4c58a6d_cryptolocker.exe
Size

45KB
MD5

414d5a11af79ace231480c4cb4c58a6d
SHA1

53ce7b6efa7813cdfc28017d9ce2530b4112225f
SHA256

9cbfb97c607ccaee810995742f52d44d96751407fbd3da248f463bd724b6a7ef
SHA512

b02f3a8960909c645fe5827d7f4f69518f58548f14171adb9030c3d0bcb21672fa2ca74e083d66e33d0d4bf920b217127a5fd4dd5d66eddf6c18de6680186a31
SSDEEP

768:79inqyNR/QtOOtEvwDpjBKccJVODvcjpEypAz:79mqyNhQMOtEvwDpjBzck6pM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/2344-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000b000000023161-13.dat	CryptoLocker_rule2
behavioral2/files/0x000b000000023161-15.dat	CryptoLocker_rule2
behavioral2/memory/2344-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/2344-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000b000000023161-13.dat	CryptoLocker_set1
behavioral2/files/0x000b000000023161-15.dat	CryptoLocker_set1
behavioral2/memory/2344-17-0x0000000000500000-0x000000000050F000-memory.dmp	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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	2024-03-14_414d5a11af79ace231480c4cb4c58a6d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3748	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 2344 wrote to memory of 3748	2344	2024-03-14_414d5a11af79ace231480c4cb4c58a6d_cryptolocker.exe	84
PID 2344 wrote to memory of 3748	2344	2024-03-14_414d5a11af79ace231480c4cb4c58a6d_cryptolocker.exe	84
PID 2344 wrote to memory of 3748	2344	2024-03-14_414d5a11af79ace231480c4cb4c58a6d_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-03-14_414d5a11af79ace231480c4cb4c58a6d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_414d5a11af79ace231480c4cb4c58a6d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2344
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3748

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\asih.exe

Filesize
26KB

MD5
9fa3a7fadb773c5563f242f1cf1ccd6e

SHA1
3c34e93a7bde998805684ab46b0b07df4335bdfd

SHA256
4c4174db42963695d98a77f1bb232bd57f8e508ec375d81610048b8e957c95de

SHA512
88d563017f3d706eebb8b4dbe756282d517e328799dccc0d817c9420b16008912e8a0fa63b44572578906e73374668d5c9318a793207817c6226fe34700f0eef

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

Filesize
45KB

MD5
c1d0bfc3f633b861af342f3b61cada36

SHA1
b0c11042e9e678205426ea204bae536025311261

SHA256
8cc3e5df0c78830c5154b8768e51579ff3025b3144ddf5d67f8abbc718720dc6

SHA512
41f0bf531cca337c43760500e9d08da38a5c53953f0e32147b1da81dc1f1d7d97f64dcf694841230065b88df97238b29d269d08465ddf308bffb29a292186f17

Download Submit
memory/2344-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2344-2-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/2344-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/2344-3-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download
memory/2344-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3748-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3748-22-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download