cryptodef | 2c1b091c6ea3feab1e9694c674fa2eba9df4f25b59c844ee3f4b9c964777c437

Analysis

max time kernel
149s
max time network
133s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
27/07/2026, 08:29

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General

Target
2026-07-27_4d4981668cfc2a6904d9d9b9e90a2b95_elex_wannacry.exe
Size 54KB
Sample260727-kdpt9aab22
SHA256 2c1b091c6ea3feab1e9694c674fa2eba9df4f25b59c844ee3f4b9c964777c437
MD5 4d4981668cfc2a6904d9d9b9e90a2b95
SHA1 88cd368aa3db8c9b70fcdfaf6975eb253c73828a
SHA512 13fc501aa692180998cf79b72d4d42999d61a43812da687800dbb8ab7f541b4cde4823741232e6125042f1bd1025bb7ad35b19b544e99417ee7b2c79eb92d0df
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmpfr2:fETVqhp8AvGBFswzLKiWmo
TLSH
T16D434438AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
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/0x000f00000001b85c-4.dat	family_cryptodef

Executes dropped EXE 1 IoCs

pid	Process
4124	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	2026-07-27_4d4981668cfc2a6904d9d9b9e90a2b95_elex_wannacry.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4376 wrote to memory of 4124	4376	2026-07-27_4d4981668cfc2a6904d9d9b9e90a2b95_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-07-27_4d4981668cfc2a6904d9d9b9e90a2b95_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-27_4d4981668cfc2a6904d9d9b9e90a2b95_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4376
- 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:4124

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 47774664e970db98ed39996217a423d3f8ebd1fc915baf7657620e12b1353d07
MD5 88d162305f71173e43e7f90c5b1c9043
SHA1 8886abaf07687bf3728622a1037a1aaeb674ba93
SHA512 c03a2c04f3ddd23d845c1f3d63cb4823f9227e707eb2d57ace4711734eea0bb53b2d6d935644450e6b6d2e643411822c86f12055e0c00766fa5e224f2eed5afe
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmpfrA:fETVqhp8AvGBFswzLKiWmO
TLSH
T126434438AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
MD5 SHA1 SHA512 SSDEEP TLSH

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