cryptodef | 31d2f9a2cafb9aae9e2ce5c436a2205d69e7242250111e7d0e5c44c9e77d048a

Analysis

max time kernel
149s
max time network
158s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
16/05/2026, 08:24

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General

Target
2026-05-16_2d65ab90c7a6b4e16aaf4cf22d5f48d9_elex_wannacry.exe
Size 33KB
Sample260516-karvfae15r
SHA256 31d2f9a2cafb9aae9e2ce5c436a2205d69e7242250111e7d0e5c44c9e77d048a
MD5 2d65ab90c7a6b4e16aaf4cf22d5f48d9
SHA1 297c4d9a3afea8d24153b30bf246b328d5783837
SHA512 0012af1ad90ea6695adef13ff4b0801fdfa1df23adf2c43b4b68e4c1ed2273315a6e2489d98abf6e6ad9a7ba27a42d985b9c2a0d5185700d69f85fc3f44adabf
SSDEEP 384:5vZBIeR0u7wCOVqheen8YmD+h1dsN8ERwrfMEsRZtMMdygOqE:NHxbwCOVqhe+8Ymcuwrvl0E
TLSH
T1A3F2DD785AC52972F33BDE758AF6418B7A747C22B912190F4085B3700C33E76AF69A0D
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/0x0007000000025f55-4.dat	family_cryptodef

Executes dropped EXE 1 IoCs

pid	Process
4416	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	2026-05-16_2d65ab90c7a6b4e16aaf4cf22d5f48d9_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 2592 wrote to memory of 4416	2592	2026-05-16_2d65ab90c7a6b4e16aaf4cf22d5f48d9_elex_wannacry.exe	80

C:\Users\Admin\AppData\Local\Temp\2026-05-16_2d65ab90c7a6b4e16aaf4cf22d5f48d9_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-16_2d65ab90c7a6b4e16aaf4cf22d5f48d9_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2592
- 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:4416

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 7e29f050144585e41c00586433c9af200316c0f3bb04100fbc0457d32946487f
MD5 2bf7e87388d0dd33264111114fc6c1fb
SHA1 d7726d552ee2479448f5575e7f84665dabdc4389
SHA512 129ea3fb21c6adf916d5440bf1d6e76a7205f805fb723906f0da92c66c1cb534b79806c875552d660c61e05b78a1ab729afce5b900d4b0c9c150dc950a4a0fe5
SSDEEP 384:5vZBIeR0u7wCOVqheen8YmD+h1dsN8ERwrfMEsRZtMMdygOqF:NHxbwCOVqhe+8Ymcuwrvl0F
TLSH
T1A7F2DD785AC52972F33BDE758AF651877A747C22B912190F4085B3700C33E76AF69A0D
MD5 SHA1 SHA512 SSDEEP TLSH

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