cryptodef | f95c9f0d42bcb34296ee2db9cedf4c9c3386411be33fae6722bdcf695cf1d80c

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
20/08/2026, 03:04

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General

Target
2026-08-20_a9831310914fa5ec382de9660dbf5bef_elex_wannacry.exe
Size 36KB
Sample260820-dkz58sbb45
SHA256 f95c9f0d42bcb34296ee2db9cedf4c9c3386411be33fae6722bdcf695cf1d80c
MD5 a9831310914fa5ec382de9660dbf5bef
SHA1 0014ca11aff9e9ff508daccf6f6716f73b76aae3
SHA512 abc8f358d5aacb1a5e90e17336f4d443c26d5bfb50a46ad4463563bcd33bb4114d86bd7e526a51e411da933f961e174e7b31b009f7a2cbfdb2a47362d36721e0
SSDEEP 384:5vZBIeR0u7wCOVqheen8YmD+h1dsN8ERwrfMEsRZtMMdygOqpJ8:NHxbwCOVqhe+8Ymcuwrvl0c
TLSH
T168F2DA78AAD51972F37BDE758AF241877A747C22B912190F4085B3700C33E76AF69A0D
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/0x0007000000016cf8-4.dat	family_cryptodef

Executes dropped EXE 1 IoCs

pid	Process
2592	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	2026-08-20_a9831310914fa5ec382de9660dbf5bef_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 1160 wrote to memory of 2592	1160	2026-08-20_a9831310914fa5ec382de9660dbf5bef_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-20_a9831310914fa5ec382de9660dbf5bef_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-20_a9831310914fa5ec382de9660dbf5bef_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1160
- 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:2592

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 36KB
SHA256 ac511632924d491cf04580f376a28d8cad0f5f55eecb9413ed07aeb54864008c
MD5 9a312c1347e039718fa10da014f0d7cd
SHA1 3ee71d095ea2a635025e005a71f981aee8d575d1
SHA512 329b97e82a84ec03e349419916c36afdf0e612d12729552bb9f5801e11de4fd9dcdd32f82b09a1c63af8f7b797b08e9c9f9ef41f7e3566d3514af88ad1181ef1
SSDEEP 384:5vZBIeR0u7wCOVqheen8YmD+h1dsN8ERwrfMEsRZtMMdygOqpJYs:NHxbwCOVqhe+8Ymcuwrvl04s
TLSH
T19703CA78AAD51972F37BDE758AF241877A747C22B912190F4085B3600C33E76EF69A0D
MD5 SHA1 SHA512 SSDEEP TLSH

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