d6bf637d1c5a3b535f9e2e086b507e13b1fdbd8444e50198662a3b5f4c3fd18d

Analysis

max time kernel
140s
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
14/02/2024, 07:14

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-14_dd1373d512af977e0cf9547b3f29cecd_cryptolocker.exe
Size

40KB
MD5

dd1373d512af977e0cf9547b3f29cecd
SHA1

6a424f57982dad36b7f931b87a5d8e2b8dd0835d
SHA256

d6bf637d1c5a3b535f9e2e086b507e13b1fdbd8444e50198662a3b5f4c3fd18d
SHA512

10a33d95216b07cda527f7e047142eca361792aa9bc63c3efc2c6c201df00acc77a62e0c2e041d1f1491af624d5c15395b46be87a5646f8d7b46db74e0fb5db3
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFqJzJ:bxNrC7kYo1Fxf3s05rwxbFSt

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231f6-12.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-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation	2024-02-14_dd1373d512af977e0cf9547b3f29cecd_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4408	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 4612 wrote to memory of 4408	4612	2024-02-14_dd1373d512af977e0cf9547b3f29cecd_cryptolocker.exe	83
PID 4612 wrote to memory of 4408	4612	2024-02-14_dd1373d512af977e0cf9547b3f29cecd_cryptolocker.exe	83
PID 4612 wrote to memory of 4408	4612	2024-02-14_dd1373d512af977e0cf9547b3f29cecd_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-14_dd1373d512af977e0cf9547b3f29cecd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_dd1373d512af977e0cf9547b3f29cecd_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4612
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:4408

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\pissa.exe

Filesize
40KB

MD5
cfb12de02423ba6eba7e984766a8d652

SHA1
5f09a78e4c9a4e4ef84a737dec853ed579990e67

SHA256
4a49dffc002ecf69a42a1eb6324c25dcd3f75e25b9686b5f19f7ee38335fe91e

SHA512
a88a8d93a7edc7c4422a1a347b8d1910e46acebf11b9773d796e0195a640d75a1220880d72390b332540c4aff67fc49ce0747174f49bda2f3407b2a1f7d96299

Download Submit
memory/4408-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4408-23-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4612-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/4612-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/4612-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download