026e9b1066b94707d063ec588d3a526f86c7dcf5fba58334d765cca36d05c1ad

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
11/06/2024, 05:53

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General

Target

2024-06-11_e967f4727c9117994df48fb4d846355a_cryptolocker.exe
Size

33KB
MD5

e967f4727c9117994df48fb4d846355a
SHA1

a31012b44a9e286786575f1e73b0f3d57920ff8e
SHA256

026e9b1066b94707d063ec588d3a526f86c7dcf5fba58334d765cca36d05c1ad
SHA512

d51841bcd700bcffbe3834a971279bc9f0c1b843c74b2412b7fee6eb9236cd5f393f3bdacd19c973e6aae13812387faca3f8843d0d71589eb1f6d5ee8503df96
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5jF:bxNrC7kYo1Fxf2rYPF

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023276-12.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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	2024-06-11_e967f4727c9117994df48fb4d846355a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
444	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 1856 wrote to memory of 444	1856	2024-06-11_e967f4727c9117994df48fb4d846355a_cryptolocker.exe	83
PID 1856 wrote to memory of 444	1856	2024-06-11_e967f4727c9117994df48fb4d846355a_cryptolocker.exe	83
PID 1856 wrote to memory of 444	1856	2024-06-11_e967f4727c9117994df48fb4d846355a_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-06-11_e967f4727c9117994df48fb4d846355a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-11_e967f4727c9117994df48fb4d846355a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1856
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:444

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
33KB

MD5
7e2eeb254792778b097d13640d47febf

SHA1
453d92637f9aedb5236f4bdab888b6a70c9c585d

SHA256
e104a3954fc3c0d2c5acdafc88f5646c89e0bc54540afc51f48a82ed7e4811de

SHA512
6a68630ea5868ca87fb2dbf865251d36a01ea1a4ef7f34a26f279b44f276540fb967f2e9a419f37f711adeaa9a70ea93bf7e73329a6b5ca8658a8fbbf8fb2c86

Download Submit
memory/444-17-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/444-23-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download
memory/1856-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/1856-1-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/1856-8-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download