cryptodef | a31d7c4a4e36f52d1528a56648ed10b56ae61fe5c56c1911b29e8ad6b57e1b35

Analysis

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

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
21/07/2026, 03:51

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General

Target
2026-07-21_c60f480b67a867ab0d244991b4174e45_elex_wannacry.exe
Size 53KB
Sample260721-eexzcsd18n
SHA256 a31d7c4a4e36f52d1528a56648ed10b56ae61fe5c56c1911b29e8ad6b57e1b35
MD5 c60f480b67a867ab0d244991b4174e45
SHA1 c36770bc5da08e634a0b660e97031807c62f4b18
SHA512 ac095eb509b22d3fe6136f4c6a77b0fbe48360df84d0560f3e294dfe2273057938a6611f4371ca6f5b5ce413c292204198080c6cd6394bfb4d4aca9968df9b53
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmpfrpL:fETVqhp8AvGBFswzLKiWmLL
TLSH
T14A334338AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
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/0x0009000000019cc0-4.dat	family_cryptodef

Executes dropped EXE 1 IoCs

pid	Process
5704	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	eilgx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-07-21_c60f480b67a867ab0d244991b4174e45_elex_wannacry.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4436 wrote to memory of 5704	4436	2026-07-21_c60f480b67a867ab0d244991b4174e45_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-07-21_c60f480b67a867ab0d244991b4174e45_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-21_c60f480b67a867ab0d244991b4174e45_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4436
- 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:5704

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 6738991bde61230bf0e6ba9cd356f338eb03e2fa412b014011aac144355cb7a5
MD5 fd1909fe1ed0017c4fe9e7e7aa512321
SHA1 ba36091a2a5783a9b27fdfd4a8c5aa0a62df2095
SHA512 a153fb4faedc7e495927d8535d358662aaedc4b90a5aea67956027f288a4289aa1d16a821d635b93904f9430acdb274adb277b04d4a77d1052ad56e6f28c9462
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmpfrp3:fETVqhp8AvGBFswzLKiWmL3
TLSH
T145433338AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
MD5 SHA1 SHA512 SSDEEP TLSH

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