9b32024285eacc21f120efd0b427202adc072cd6f2a79c165d7621a367b4c12c

Analysis

max time kernel
92s
max time network
149s
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, 14:34

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General

Target

2024-04-15_3ac3e8fa6460a4290757e9fe265bb0c7_cryptolocker.exe
Size

44KB
MD5

3ac3e8fa6460a4290757e9fe265bb0c7
SHA1

f340ecd37ce954ce99263c9f1de5cfbadf4e0bfd
SHA256

9b32024285eacc21f120efd0b427202adc072cd6f2a79c165d7621a367b4c12c
SHA512

8906630b4adde269797f76534f169a040b64a66c47128d628585fcf32d9a6bc78118de937bacb0e8fa27bdd4d99262ea39a4476877872f1b46e52d57ee8148ed
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFp1Yvb9wAs:bxNrC7kYo1Fxf3s05rwxbF7Yvby

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e970-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation	2024-04-15_3ac3e8fa6460a4290757e9fe265bb0c7_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
3996	pissa.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 1132 wrote to memory of 3996	1132	2024-04-15_3ac3e8fa6460a4290757e9fe265bb0c7_cryptolocker.exe	86
PID 1132 wrote to memory of 3996	1132	2024-04-15_3ac3e8fa6460a4290757e9fe265bb0c7_cryptolocker.exe	86
PID 1132 wrote to memory of 3996	1132	2024-04-15_3ac3e8fa6460a4290757e9fe265bb0c7_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-04-15_3ac3e8fa6460a4290757e9fe265bb0c7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_3ac3e8fa6460a4290757e9fe265bb0c7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1132
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:3996

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\pissa.exe

Filesize
44KB

MD5
b50cceb85eadbd8f0c977ba0f762e10c

SHA1
1772457a2e44cb771b5c56f51e2382624d3e65e9

SHA256
ee9d18fa172ebdef271769e7e5b197d44a6e7d5ca14f75d990192d77d801beeb

SHA512
df69e4e452cd29947e3b8479940d1dbec45645821023882a90c8b2daa3378d88d300faf54d814564666cb77c10e5a7b39d22a3c8eff91a7ac1f3482dbf29af9e

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

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/1132-0-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/1132-1-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/1132-2-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/3996-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/3996-19-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download