e8652a1411da2fcd36ff4a2c0c1ab5a9b704e361f2f4b7ee491b01afd798fa26

Analysis

max time kernel
149s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
20/08/2026, 03:43

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General

Target
2026-08-20_b1b73197c85a91ff1d36c6903567a9e8_cryptolocker_elex.exe
Size 43KB
Sample260820-d985faek2v
SHA256 e8652a1411da2fcd36ff4a2c0c1ab5a9b704e361f2f4b7ee491b01afd798fa26
MD5 b1b73197c85a91ff1d36c6903567a9e8
SHA1 39142d822c18394672f3400ec6e1c1dfab824720
SHA512 60622f18949434d5e42c0bb22a154b5eb69ff08a7e9254ebe6f3a010bdf684769a89a75f0ea8b3cbed87309102a3e538437fe784b4b6f45b0c0f58f6d4cc17fa
SSDEEP 768:bxNQIE0eBhkL2Fo1ChywARfjCgFJAeWwQEhFGXQb:bxNrC7kYo17LRLceldb
TLSH
T1D4132F38AED56872D3BBDE7995F750C6B87878623E018D4E50CB17440C23F22EDA161E
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
behavioral1/memory/4600-2-0x0000000008000000-0x0000000008009000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000024384-13.dat	CryptoLocker_rule2
behavioral1/memory/856-17-0x0000000008000000-0x0000000008009000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/856-19-0x0000000008000000-0x0000000008009000-memory.dmp	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-1-5-21-2370214745-1838013427-2987045292-1000\Control Panel\International\Geo\Nation	2026-08-20_b1b73197c85a91ff1d36c6903567a9e8_cryptolocker_elex.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
856	pissa.exe

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

System Information Discovery
T1082

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	pissa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-20_b1b73197c85a91ff1d36c6903567a9e8_cryptolocker_elex.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 4600 wrote to memory of 856	4600	2026-08-20_b1b73197c85a91ff1d36c6903567a9e8_cryptolocker_elex.exe	85

C:\Users\Admin\AppData\Local\Temp\2026-08-20_b1b73197c85a91ff1d36c6903567a9e8_cryptolocker_elex.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-20_b1b73197c85a91ff1d36c6903567a9e8_cryptolocker_elex.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4600
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies system certificate store
  PID:856

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

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 43KB
SHA256 68cdaf185eb84b70f04670dd9fe670ce17781d1ff452bddc4a95137760ef30ac
MD5 0df40233fa6dde1452bbe9c1a47f95ab
SHA1 4d3e9bc4264d5e4eaba191060c6cd49552adfc7e
SHA512 7377ddb35953318ac452c6dc8ae2a58dcf045ab28e1e44668a51ee347febeee1e7f0d1da7eb727aebf98fb75da4ac4a939589ce5b7b345ac4ee7565faadd978a
SSDEEP 768:bxNQIE0eBhkL2Fo1ChywARfjCgFJAeWwQEhFGXQrk:bxNrC7kYo17LRLceldA
TLSH
T138132F38AED56872D3BBDE7995F750C6B978B8623E018D4E50CB17440C23F22EDA161E
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/856-17-0x0000000008000000-0x0000000008009000-memory.dmp

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memory/856-20-0x0000000002030000-0x0000000002036000-memory.dmp

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memory/856-19-0x0000000008000000-0x0000000008009000-memory.dmp

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memory/4600-0-0x0000000008004000-0x0000000008005000-memory.dmp

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memory/4600-1-0x0000000002200000-0x0000000002206000-memory.dmp

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memory/4600-2-0x0000000008000000-0x0000000008009000-memory.dmp

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memory/4600-3-0x0000000002270000-0x0000000002276000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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