cryptodef | 4c41c75ed3ba893cd18e7fade57abe2209ce8163dc9cbbc26fcc644b30487111

Analysis

max time kernel
150s
max time network
111s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
17/05/2026, 06:35

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General

Target
2026-05-17_5b44e5731a6372646a19bc18d97e88dc_elex_wannacry.exe
Size 34KB
Sample260517-hcm8xsdt21
SHA256 4c41c75ed3ba893cd18e7fade57abe2209ce8163dc9cbbc26fcc644b30487111
MD5 5b44e5731a6372646a19bc18d97e88dc
SHA1 21ebf990189e8b70ec97f898e04fc5586b75a4c5
SHA512 927c9436f8c69108ed26850ee2b43a4fa4eb8dd80cc429ec082876d753156ff06d2e254fc448e93d4974eeb2c83cf036ecfce49b0f656a34e196a67dfdfcbd08
SSDEEP 384:5vZBIeR0u7wCOVqheen8YmD+h1dsN8ERwrfMEsRZtMMdygOqP0:NHxbwCOVqhe+8Ymcuwrvl0P0
TLSH
T155F2CD785AC52972F33BDE758AF6518B7A747C22B912190F4085B3700C33E76AF69A0D
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/0x00130000000270df-4.dat	family_cryptodef

Executes dropped EXE 1 IoCs

pid	Process
3472	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	2026-05-17_5b44e5731a6372646a19bc18d97e88dc_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 4488 wrote to memory of 3472	4488	2026-05-17_5b44e5731a6372646a19bc18d97e88dc_elex_wannacry.exe	81

C:\Users\Admin\AppData\Local\Temp\2026-05-17_5b44e5731a6372646a19bc18d97e88dc_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-17_5b44e5731a6372646a19bc18d97e88dc_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4488
- 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:3472

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 34KB
SHA256 02569e0955386539e510d265f5d37cec6208637df9e56de0177e9a113ffe06c1
MD5 176b52fbf2d788c71dbb67d45211126d
SHA1 bd72decffc8795a2278c06de53139c9fc486a115
SHA512 192f407ddf0d32385c93069b163059a020fb669d741057352a350980db9d6e147b3f048b7f171b06072533c075cbf9a08ff3f38f5731bcf9ed2186c514c59d78
SSDEEP 384:5vZBIeR0u7wCOVqheen8YmD+h1dsN8ERwrfMEsRZtMMdygOqPz:NHxbwCOVqhe+8Ymcuwrvl0Pz
TLSH
T15DF2CD785AC52972F33BDE758AF6518B7A747C22B912190F4085B3700C33E76AF69A0D
MD5 SHA1 SHA512 SSDEEP TLSH

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