cryptodef | 73d5965c394398de19348c1df61710ea2c15d6e44191d0bce44463f944af8bfd

Analysis

max time kernel
150s
max time network
126s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
30/08/2026, 17:12

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General

Target
2026-08-30_671dd2cd9179e618e5bc4a42ac67818d_elex_wannacry.exe
Size 54KB
Sample260830-vqs3jswend
SHA256 73d5965c394398de19348c1df61710ea2c15d6e44191d0bce44463f944af8bfd
MD5 671dd2cd9179e618e5bc4a42ac67818d
SHA1 8f88f5b1eee92054a4379740305d1ab886961bdb
SHA512 6ab15a0c1eb6cf789a10d1641da1025835714c35856dffc60fc8543e2dea52d95cde7bf4a782ba2c3a0ddba2437e2d222e7a1dc0803bf5e5029e8f3d0bd880ad
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmp3VM86:fETVqhp8AvGBFswzLKiWmps
TLSH
T1A8432138AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
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/0x0009000000011374-4.dat	family_cryptodef

Executes dropped EXE 1 IoCs

pid	Process
3540	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	2026-08-30_671dd2cd9179e618e5bc4a42ac67818d_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 4808 wrote to memory of 3540	4808	2026-08-30_671dd2cd9179e618e5bc4a42ac67818d_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-30_671dd2cd9179e618e5bc4a42ac67818d_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-30_671dd2cd9179e618e5bc4a42ac67818d_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4808
- 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:3540

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

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Downloads

eilgx.exe

Path C:\Users\Admin\AppData\Local\Temp\eilgx.exe
Size 54KB
SHA256 b639814750665b9520e0fee937a5bfcf2ab2c3c6ddfe3725b8a25f5f3ff19a89
MD5 b589b4ace9535ee9f412237365f7aa60
SHA1 c8be79b2ff674a05c4297f012435f7564b8e4aa3
SHA512 c77550aea17bcc4a332b482f70a777696febbfb384e9c3a9398f180b188f2f34a2e0bdef651a3998488c97ec081a991e3090744c73aae5a9f3a74d98963d31ca
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmp3VM8I:fETVqhp8AvGBFswzLKiWmpm
TLSH
T1A5432138AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
MD5 SHA1 SHA512 SSDEEP TLSH

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