0595848b05ee6e8f54d080bc3beabd988b12693ae7254d567788e7b58f54b6a4

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28-02-2024 16:08

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General

Target

2024-02-28_de823aed017ad0bfcc0554b86afd949c_cryptolocker.exe
Size

35KB
MD5

de823aed017ad0bfcc0554b86afd949c
SHA1

b4caa9c62c176758382a322e865ae74d7a18200b
SHA256

0595848b05ee6e8f54d080bc3beabd988b12693ae7254d567788e7b58f54b6a4
SHA512

dd4f41a575258b445e794cc937b3375165b3659cf5c64b8a4a5bb11ba2ea1fcc91ea832737c92543ea841cc3f515b47783cfec34797788626971f275f78208fc
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7JEkA:bxNrC7kYo1Fxf3s06L

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002320d-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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	2024-02-28_de823aed017ad0bfcc0554b86afd949c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
812	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 4628 wrote to memory of 812	4628	2024-02-28_de823aed017ad0bfcc0554b86afd949c_cryptolocker.exe	88
PID 4628 wrote to memory of 812	4628	2024-02-28_de823aed017ad0bfcc0554b86afd949c_cryptolocker.exe	88
PID 4628 wrote to memory of 812	4628	2024-02-28_de823aed017ad0bfcc0554b86afd949c_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-02-28_de823aed017ad0bfcc0554b86afd949c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_de823aed017ad0bfcc0554b86afd949c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4628
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:812

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
35KB

MD5
2900e3906b5aa8119012bf8a332588b0

SHA1
fe072d778e6908dea79f85fd46719fca1e804380

SHA256
b97a314275d418eb93d619f0e48302286ba9b2dd8960e34752d7d7f848ec2572

SHA512
27fafa2974531e31f8e2085f6552ff055e14c5c1ed575bbcf7c12cf34400af375911f77edcb0b9a7f5b55ead4515df4f61862c631f68fb0cdc3fbf3df6e62bdc

Download Submit
memory/812-17-0x0000000001FD0000-0x0000000001FD6000-memory.dmp

Filesize
24KB

Download
memory/812-22-0x0000000001FA0000-0x0000000001FA6000-memory.dmp

Filesize
24KB

Download
memory/4628-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/4628-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/4628-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download