cryptodef | 9a27535695b5344194db9be0fc1286c5b8ccebe26ef12a7f8509ca60e53c33ac

Analysis

max time kernel
150s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
20/05/2026, 08:36

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General

Target
2026-05-20_a944c351bd5728d62361ce4bbfdf8200_elex_wannacry.exe
Size 53KB
Sample260520-khpeaaav31
SHA256 9a27535695b5344194db9be0fc1286c5b8ccebe26ef12a7f8509ca60e53c33ac
MD5 a944c351bd5728d62361ce4bbfdf8200
SHA1 eb1e832d49291d7612ce2ec71f986bafdaa696a1
SHA512 1b074ecafea0efc8890cb04a137741790a1a252307f62cf69ac85e52bfd1dafa9c6a3b010a77aa82f59f2f39b06dd7019fa996ffb778f8fce106362693f73c68
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmpfrjO1/:fETVqhp8AvGBFswzLKiWmJq/
TLSH
T10E333338AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
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/0x000700000002a8ef-4.dat	family_cryptodef

Executes dropped EXE 1 IoCs

pid	Process
1844	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	2026-05-20_a944c351bd5728d62361ce4bbfdf8200_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 1760 wrote to memory of 1844	1760	2026-05-20_a944c351bd5728d62361ce4bbfdf8200_elex_wannacry.exe	81

C:\Users\Admin\AppData\Local\Temp\2026-05-20_a944c351bd5728d62361ce4bbfdf8200_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-20_a944c351bd5728d62361ce4bbfdf8200_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1760
- 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:1844

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 53KB
SHA256 667eb52741be8a0750400fcb6ec7a0681bde4d32d6d558415666ec9a5e5c0c82
MD5 a201a41dbdc4a9641d3e9a7a06d58dbe
SHA1 6410bd153730e527638bc3553d1a618470faf2c3
SHA512 d5f1aea8678c8075b6a7289a1aa4188c2c7afeb0af5879e127d96b9bcf814555fd72438ebaab7d93a81b2a9c0a979d6c56cd9b2a1f6c9cc641e2045e2291ce61
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmpfrjO1I:fETVqhp8AvGBFswzLKiWmJqI
TLSH
T160334338AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
MD5 SHA1 SHA512 SSDEEP TLSH

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