cryptodef | fb5669e540fbcebe0fee190c7582f3928b864b95a3434afb866bf39e0da9c9b4

Analysis

max time kernel
149s
max time network
146s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
20/07/2026, 03:12

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General

Target
2026-07-20_4d57d55d510dbaf86b0da72fa5e0ab9b_elex_wannacry.exe
Size 54KB
Sample260720-dp572sdw4p
SHA256 fb5669e540fbcebe0fee190c7582f3928b864b95a3434afb866bf39e0da9c9b4
MD5 4d57d55d510dbaf86b0da72fa5e0ab9b
SHA1 7c6cb82611846a34e410f9ca67fb53884ae606f0
SHA512 f7c81c57e5fe8461b73b9dc6c073ad8b99d0bb2fe39cf54644188c3d41a69e9b433dacd422e1ce6b64e159fc91290222568db7e262098d3c3239546e003721da
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmpfrj8:fETVqhp8AvGBFswzLKiWmJ8
TLSH
T13C433238AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery cryptodef trojan

Malware Config

Signatures

Family: CryptoDef
CryptoDef is a Windows trojan written in C.
trojan cryptodef

Detects CryptoDef 1 IoCs

resource	yara_rule
behavioral2/files/0x000d000000016cdc-4.dat	family_cryptodef

Executes dropped EXE 1 IoCs

pid	Process
424	eilgx.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	2026-07-20_4d57d55d510dbaf86b0da72fa5e0ab9b_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eilgx.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4600 wrote to memory of 424	4600	2026-07-20_4d57d55d510dbaf86b0da72fa5e0ab9b_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-07-20_4d57d55d510dbaf86b0da72fa5e0ab9b_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-20_4d57d55d510dbaf86b0da72fa5e0ab9b_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4600
- C:\Users\Admin\AppData\Local\Temp\eilgx.exe
  "C:\Users\Admin\AppData\Local\Temp\eilgx.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:424

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

eilgx.exe

Path C:\Users\Admin\AppData\Local\Temp\eilgx.exe
Size 54KB
SHA256 28133afca2f8513e5a074d496ca226154485aeab8a45ff55a162a14fa947e5c0
MD5 8351229acad2c67f7ea87f6ce67fce41
SHA1 d84cc6789c1e09215154e809f65d1ae0824449c6
SHA512 4a66ca86b485da174f427f8d77dd291b2a5f6d2f39dbca66f4c6838d901003c67ef96316d4a9c25a70a32e8eea86bd33e025f837c365b6c191922a81b5ea7005
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmpfrjX:fETVqhp8AvGBFswzLKiWmJX
TLSH
T1BB433238AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
MD5 SHA1 SHA512 SSDEEP TLSH

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