cryptodef | 9de131fbfdb9c3a8a4d7c2c65d8955604f27b784f7be6a48da31d6f59ddf9d4c

Analysis

max time kernel
149s
max time network
126s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
20/07/2026, 11:22

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General

Target
2026-07-20_a5b53e91559e07e0428bd9c8a15e8126_elex_wannacry.exe
Size 54KB
Sample260720-ngkw9aaw21
SHA256 9de131fbfdb9c3a8a4d7c2c65d8955604f27b784f7be6a48da31d6f59ddf9d4c
MD5 a5b53e91559e07e0428bd9c8a15e8126
SHA1 cb666229d8131d2cdf75b19090a97a6bfddead67
SHA512 3fdc885d39310f7548562c7bdfd2a7f3e20f2684b6d2c77a4f3b566eac9a8731a47b8622529ca201ec2ff7915b771a61d178763e37802040ae8cc8e95ab06e2a
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmpfrjQV:fETVqhp8AvGBFswzLKiWmJe
TLSH
T13D434338AED51572F37BDE758AF651C7AA747C227902280F4086B3500C33F76AEA5A0D
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/0x000600000001b867-4.dat	family_cryptodef

Executes dropped EXE 1 IoCs

pid	Process
4116	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	2026-07-20_a5b53e91559e07e0428bd9c8a15e8126_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 3868 wrote to memory of 4116	3868	2026-07-20_a5b53e91559e07e0428bd9c8a15e8126_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-07-20_a5b53e91559e07e0428bd9c8a15e8126_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-20_a5b53e91559e07e0428bd9c8a15e8126_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3868
- 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:4116

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 a6a7a29068438bb881c1df221910f5d91e64490d08dfb19bce7b41d327e871c2
MD5 1b5368e763af1d7d19b35bce03670a83
SHA1 301c0b9560d43f4839e98b57da40f18e29c61e3a
SHA512 bf451d671cf35e2d2f7eb608bd6d4828432c6a55c16b8a54f8dc3915ee5c287e2a82f4615425d1a74c7059113da39ee776470e0cbf812e8c59390c44e1a34160
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmpfrjQDG:fETVqhp8AvGBFswzLKiWmJGG
TLSH
T1A7434338AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
MD5 SHA1 SHA512 SSDEEP TLSH

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