cryptodef | 8f37c704f27d26d8ee79d109f8640ff504da6e57de42e6c0cc359e5049cb7b16

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
09/08/2026, 11:06

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General

Target
2026-08-09_80168484552ce1f836f04d1d529383d1_elex_wannacry.exe
Size 37KB
Sample260809-m7v98szvbx
SHA256 8f37c704f27d26d8ee79d109f8640ff504da6e57de42e6c0cc359e5049cb7b16
MD5 80168484552ce1f836f04d1d529383d1
SHA1 393aac03af01d075764ec7f7a52bfb1e76fbc9a7
SHA512 91e1a1bedd93cba67703c50d220b085f5acc7d5250b6d4a175b8db6686dc9c2395c160c14724c0245f580bcb353a0ccf993fe95251efaa8f5fb8e3e956a158a8
SSDEEP 384:5vZBIeR0u7wCOVqheen8YmD+h1dsN8ERwrfMEsRZtMMdygOqpJT:NHxbwCOVqhe+8Ymcuwrvl0z
TLSH
T12C03CA786AD51972F37BDE758AF241877A747C22B912190F4085B3600C33E76EF69A0D
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/0x0009000000019cc1-3.dat	family_cryptodef

Executes dropped EXE 1 IoCs

pid	Process
4332	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	2026-08-09_80168484552ce1f836f04d1d529383d1_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 2608 wrote to memory of 4332	2608	2026-08-09_80168484552ce1f836f04d1d529383d1_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-09_80168484552ce1f836f04d1d529383d1_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-09_80168484552ce1f836f04d1d529383d1_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2608
- 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:4332

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 37KB
SHA256 cc6f3f5740a9f6f11b2ec3a742dd657702225d85cbba0ffca9c65cfcc9e691e0
MD5 c81ce31efe4f230077fbba42e553ec69
SHA1 3ff9dbb29667770345e15d2fb47c44b3b5c8a0ef
SHA512 d16174c7d18c88021a910652bd12be09e7fb7c22f801bddbfe062a2aa19d3dd6fc1038dccc189069c974e8c0b714febd4c2e68b310bf9beb09e219adcd05b31c
SSDEEP 384:5vZBIeR0u7wCOVqheen8YmD+h1dsN8ERwrfMEsRZtMMdygOqpJD:NHxbwCOVqhe+8Ymcuwrvl0j
TLSH
T12C03CA786AD51972F37BDE758AF281877A747C22B912190F4085B3600C33E76EF69A0D
MD5 SHA1 SHA512 SSDEEP TLSH

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