19ed4c924006e19f86cd520acaed1ffc8efdf5bc214f04dcda18cf987ba413d3

Analysis

max time kernel
150s
max time network
135s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
29/10/2026, 18:17

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General

Target
2026-10-28_cd1c28f84869a43c4f6864b28e2e95e4_cryptolocker_elex.exe
Size 53KB
Sample261029-ww7cssst3r
SHA256 19ed4c924006e19f86cd520acaed1ffc8efdf5bc214f04dcda18cf987ba413d3
MD5 cd1c28f84869a43c4f6864b28e2e95e4
SHA1 6b4b2faf833e93e70212ab1baa0e76a37bcded03
SHA512 ebe461323131573b0236b6cdece811e75fc2588b98f605ca5a391439cd98db2983534de35caff2a38b1c8366c223a5ee2c6693fe9ec90e78d22066ee944797c3
SSDEEP 768:bxNQIE0eBhkL2Fo1CCwgfjOg9ApiZai4xuwz/2winojESeaiNRc2DkV:bxNrC7kYo1Fxf2PNz/2wioASeaEc2DkV
TLSH
T18633F838AED61832D3BB8F7695F350F67B74B81239118E4E44CE17490C23B6AAD6171E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

defense_evasion discovery spyware trojan

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/3012-2-0x0000000008000000-0x0000000008009000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000a000000019cb3-12.dat	CryptoLocker_rule2
behavioral2/memory/3252-18-0x0000000008000000-0x0000000008009000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/3252-20-0x0000000008000000-0x0000000008009000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3252	pissa.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	pissa.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	pissa.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-10-28_cd1c28f84869a43c4f6864b28e2e95e4_cryptolocker_elex.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pissa.exe

Modifies system certificate store 2 TTPs 2 IoCs

defense_evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\47BEABC922EAE80E78783462A79F45C254FDE68B	pissa.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\47BEABC922EAE80E78783462A79F45C254FDE68B\Blob = 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	pissa.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 3012 wrote to memory of 3252	3012	2026-10-28_cd1c28f84869a43c4f6864b28e2e95e4_cryptolocker_elex.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-10-28_cd1c28f84869a43c4f6864b28e2e95e4_cryptolocker_elex.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-28_cd1c28f84869a43c4f6864b28e2e95e4_cryptolocker_elex.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  - Reads the TCP/IP host and domain name from the registry
  - System Location Discovery: System Language Discovery
  - Modifies system certificate store
  PID:3252

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Subvert Trust Controls

T1553

Install Root Certificate

T1553.004

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

pissa.exe

Path C:\Users\Admin\AppData\Local\Temp\pissa.exe
Size 53KB
SHA256 0487ea6c5d571f7d891d168faf377a4dd4d61e3e004181080ff943e413306f36
MD5 43fab2bd3b2f95743507d836ab6fabb1
SHA1 289b2323d33239352482759a05458099a52d453d
SHA512 0f952438a556e4cd7e1b4f277c6511bca12e96c9c6a1b84399f0b1fe403e30b2f6fd8a18e00204acf5202b6018861e6e28770cf44100a430d394a89fd9f7addb
SSDEEP 768:bxNQIE0eBhkL2Fo1CCwgfjOg9ApiZai4xuwz/2winojESeaiNRc2Dku:bxNrC7kYo1Fxf2PNz/2wioASeaEc2Dku
TLSH
T17833F738AED61832D3BB8F7695F350F67B74B81239118A4E44CE17490C23B6AAD6171E
MD5 SHA1 SHA512 SSDEEP TLSH

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pissec.exe

Path C:\Users\Admin\AppData\Local\Temp\pissec.exe
Size 114B
SHA256 6dc9c7fc93bb488bb0520a6c780a8d3c0fb5486a4711aca49b4c53fac7393023
MD5 e89f75f918dbdcee28604d4e09dd71d7
SHA1 f9d9055e9878723a12063b47d4a1a5f58c3eb1e9
SHA512 8df0ab2e3679b64a6174deff4259ae5680f88e3ae307e0ea2dfff88ec4ba14f3477c9fe3a5aa5da3a8e857601170a5108ed75f6d6975958ac7a314e4a336aed0
TLSH
T1EEB092DDBC61E48018E535511EA3B60D146A22EBB9018B4018C00836A96035F8D0AAC5
MD5 SHA1 SHA512 TLSH

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memory/3012-0-0x0000000008004000-0x0000000008005000-memory.dmp

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memory/3012-1-0x0000000002270000-0x0000000002276000-memory.dmp

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memory/3012-2-0x0000000008000000-0x0000000008009000-memory.dmp

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memory/3012-3-0x00000000022A0000-0x00000000022A6000-memory.dmp

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memory/3252-18-0x0000000008000000-0x0000000008009000-memory.dmp

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memory/3252-20-0x0000000008000000-0x0000000008009000-memory.dmp

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memory/3252-21-0x00000000022C0000-0x00000000022C6000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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