cryptodef | b8618772bcc31f70c17fe7aca97402899706f166fedccb08b17825585b17bb94

Analysis

max time kernel
150s
max time network
127s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
07/08/2026, 01:44

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General

Target
2026-08-07_bf6626d4fc76d3a020523bc9f9b284ba_elex_wannacry.exe
Size 54KB
Sample260807-b6bzesek91
SHA256 b8618772bcc31f70c17fe7aca97402899706f166fedccb08b17825585b17bb94
MD5 bf6626d4fc76d3a020523bc9f9b284ba
SHA1 fc5ca4ce28de1676aa71c22614790b66b1f12b36
SHA512 da23eedf617433d4b61726aedd73ba1ff1fcff6a7a5e510ad6b33962b5eb7caee26948a4fa183a0226cec4e51cbdfac984931c5b4f3e5a96e1213a12ee9cb713
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmpfrjg:fETVqhp8AvGBFswzLKiWmJg
TLSH
T140434338AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
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/0x001b0000000118e7-4.dat	family_cryptodef

Executes dropped EXE 1 IoCs

pid	Process
4940	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	2026-08-07_bf6626d4fc76d3a020523bc9f9b284ba_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 4744 wrote to memory of 4940	4744	2026-08-07_bf6626d4fc76d3a020523bc9f9b284ba_elex_wannacry.exe	91

C:\Users\Admin\AppData\Local\Temp\2026-08-07_bf6626d4fc76d3a020523bc9f9b284ba_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-07_bf6626d4fc76d3a020523bc9f9b284ba_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4744
- 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:4940

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

Replay Monitor

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Downloads

eilgx.exe

Path C:\Users\Admin\AppData\Local\Temp\eilgx.exe
Size 54KB
SHA256 0da21db708d2ac428a36d4731c676d1648c7156d7f0cae99b1a8500087d34f5a
MD5 fbd59a9cc781b4310d4020b6559fb93a
SHA1 7202bc19f30f5547e51f185f8145d2643a8b6839
SHA512 e4ae5d3ab10f4887774f8047412188a8d93436fbe5da7a1514139f5edb56060d424b0e23a5b8d1494e53d1d7e524cbee8331ec760c090e0b25255b26de70e7f6
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmpfrjh:fETVqhp8AvGBFswzLKiWmJh
TLSH
T163433338AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
MD5 SHA1 SHA512 SSDEEP TLSH

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