cryptodef | 21fc0a066cafe2ccf11001b79762eda559739394fafec7787ff1376e80f23280

Analysis

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

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
18/08/2026, 08:19

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General

Target
2026-08-18_6e8bfb73823784b1d3c9cdea1ac065f6_elex_wannacry.exe
Size 54KB
Sample260818-j719psyfpg
SHA256 21fc0a066cafe2ccf11001b79762eda559739394fafec7787ff1376e80f23280
MD5 6e8bfb73823784b1d3c9cdea1ac065f6
SHA1 d3b5fcb1205eaec9ec9989a708f4bfb8e6b951d2
SHA512 8989e96361c2556f3a615881920a5cdf6a924730b60a98d8b9ef60a850bfb0a4483d66accb3e02416e903854988589a3c50dc8ba9c6181a26c9bc3ac336bf313
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmpfrj1:fETVqhp8AvGBFswzLKiWmJ1
TLSH
T141433238AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
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/0x000e00000001b847-4.dat	family_cryptodef

Executes dropped EXE 1 IoCs

pid	Process
4112	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	2026-08-18_6e8bfb73823784b1d3c9cdea1ac065f6_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 4636 wrote to memory of 4112	4636	2026-08-18_6e8bfb73823784b1d3c9cdea1ac065f6_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-18_6e8bfb73823784b1d3c9cdea1ac065f6_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-18_6e8bfb73823784b1d3c9cdea1ac065f6_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4636
- 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:4112

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 8c8cee55d2337b4eace672153e0010ed9e166027923ba2e125ad5025dd1e5169
MD5 c0bd2958e0670a8b7859482d50282d80
SHA1 b575569fb152526f07ccd82f9f8b5982a2e3c4e3
SHA512 2b80958494625c464be486bceb0c6cfc4149539d72bd6649d2a6034259d6b945ec38453db19ae8b6e8474baf03ff4f40fb43ca04af88f67e001d24800376bbcd
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmpfrjw:fETVqhp8AvGBFswzLKiWmJw
TLSH
T1C9433238AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
MD5 SHA1 SHA512 SSDEEP TLSH

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