04b5c237b6482999a81678c6d4e33d53270e137bf8cea57d9b6fdfe845098508

Analysis

max time kernel
149s
max time network
146s
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, 17:50

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General

Target
2026-08-20_5cabcc0db8c3e483516cb31f5d45c0f0_cryptolocker_elex.exe
Size 41KB
Sample260820-wembasgm2x
SHA256 04b5c237b6482999a81678c6d4e33d53270e137bf8cea57d9b6fdfe845098508
MD5 5cabcc0db8c3e483516cb31f5d45c0f0
SHA1 6c70fcca5462a1926963d2c24b0ce7f8b7f34a37
SHA512 428ee5d1341b094110ce2ddeb8ff3b5c3fa5a65977afbceda7d9fd93cba043463526c04585bf7afebc2aeae3e1aa1489fe71b801ba664d95792938a94b0091aa
SSDEEP 768:C4PNQIE0eBhkL2Fo1CCwgfjOg7ycLaMVwc5LXheNq:C4PNrC7kYo1FxfWceMVwcdheE
TLSH
T1DA136138ADD52972D2BBCBB9C9F751C7B879786239058D8E50CA27480D23F13BCA151E
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/2016-2-0x0000000008000000-0x0000000008009000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0016000000024314-13.dat	CryptoLocker_rule2
behavioral1/memory/376-18-0x0000000008000000-0x0000000008009000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/376-26-0x0000000008000000-0x0000000008009000-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-1-5-21-204488895-2999877624-296153668-1000\Control Panel\International\Geo\Nation	2026-08-20_5cabcc0db8c3e483516cb31f5d45c0f0_cryptolocker_elex.exe
Key value queried	\REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
376	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_5cabcc0db8c3e483516cb31f5d45c0f0_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
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\47BEABC922EAE80E78783462A79F45C254FDE68B\Blob = 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	pissa.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\47BEABC922EAE80E78783462A79F45C254FDE68B	pissa.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 376	2016	2026-08-20_5cabcc0db8c3e483516cb31f5d45c0f0_cryptolocker_elex.exe	86

C:\Users\Admin\AppData\Local\Temp\2026-08-20_5cabcc0db8c3e483516cb31f5d45c0f0_cryptolocker_elex.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-20_5cabcc0db8c3e483516cb31f5d45c0f0_cryptolocker_elex.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2016
- 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:376

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 41KB
SHA256 aef0f01a03865101cad61b8c70a52595f72a3952b034b66feb8ffb96eed848a0
MD5 ed52a6475612b6787469324c54025222
SHA1 5f85fdc0622c9eb1551ce37e3c40dceaf1f648df
SHA512 207b354d93854e96d4dfe2459c83df2990435e285bb51536fcf2947521b5f5369579b02413b5af68d02a25cacbf1366653f3367e2bb8dcfb26b1361966d27580
SSDEEP 768:C4PNQIE0eBhkL2Fo1CCwgfjOg7ycLaMVwc5LXheNF:C4PNrC7kYo1FxfWceMVwcdheP
TLSH
T155136138ADD52972D2BBCBB9C9F751C7B879786239058D8E50CA27480D23F13BCA151E
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/376-18-0x0000000008000000-0x0000000008009000-memory.dmp

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memory/376-20-0x0000000003010000-0x0000000003016000-memory.dmp

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memory/376-26-0x0000000008000000-0x0000000008009000-memory.dmp

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memory/2016-0-0x0000000008004000-0x0000000008005000-memory.dmp

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memory/2016-1-0x0000000000700000-0x0000000000706000-memory.dmp

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memory/2016-2-0x0000000008000000-0x0000000008009000-memory.dmp

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memory/2016-3-0x0000000002240000-0x0000000002246000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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