cryptodef | 4608d18048ed68fa3776acadaf8d26db302c5d89652b195c8f24d5bd96002851

Analysis

max time kernel
150s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
17/04/2026, 03:53

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General

Target
2026-04-17_4b40765a167fa074f2bdbf3883c1dba2_elex_wannacry.exe
Size 33KB
Sample260417-ef443aex2r
SHA256 4608d18048ed68fa3776acadaf8d26db302c5d89652b195c8f24d5bd96002851
MD5 4b40765a167fa074f2bdbf3883c1dba2
SHA1 a8450c8e05d6b9bb4cdd3f35cc2f2546761d7586
SHA512 31ea63d0a5ecd14843d4094e8a98eff2eb5c8d992f672570b6a7bf5e0bebc9be785033c352eeedcf46c607d30359e522cb86701cd8aa1234d61f4a2a74065c2f
SSDEEP 384:5vZBIeR0u7wCOVqheen8YmD+h1dsN8ERwrfMEsRZtMMdygONg0LW:NHxbwCOVqhe+8YmcuwrvlwyW
TLSH
T1F2F2DE789AC51972F37BDE758AF6418BBA747C22B911190F4085B3700C33E76AF69A0D
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/0x0005000000014297-4.dat	family_cryptodef

Executes dropped EXE 1 IoCs

pid	Process
4204	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	2026-04-17_4b40765a167fa074f2bdbf3883c1dba2_elex_wannacry.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 5188 wrote to memory of 4204	5188	2026-04-17_4b40765a167fa074f2bdbf3883c1dba2_elex_wannacry.exe	78

C:\Users\Admin\AppData\Local\Temp\2026-04-17_4b40765a167fa074f2bdbf3883c1dba2_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-04-17_4b40765a167fa074f2bdbf3883c1dba2_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5188
- 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:4204

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 33KB
SHA256 5106ced853b4d2f6fe494448ac3c77d954af338ae09ff9b8679896d6a1fc3bbd
MD5 0d70c3e182856a6c5439818c795b9653
SHA1 80a519640994f9557819a18870456cff5a70e50b
SHA512 703761c8e916af979ba1d7b2c92a66d1aad6cc2e44ae89160f4af679669183b2ee3c3a421a469b8200898f8a17b66a514d9e242a52fd5d04cb613c4e201d3971
SSDEEP 384:5vZBIeR0u7wCOVqheen8YmD+h1dsN8ERwrfMEsRZtMMdygONg0LW:NHxbwCOVqhe+8YmcuwrvlwyW
TLSH
T1F9F2DE789AC51972F37BDE758AF6418B7A747C22B911190F4085B3700C33E76AF69A0D
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4204-9-0x0000000000830000-0x000000000090F000-memory.dmp

Download

memory/5188-8-0x0000000000880000-0x000000000095F000-memory.dmp