cryptodef | 1bb997462ae0a9ac4ae13fafdcfc419aac98c9b51ef139b7b7299c00041bb236

Analysis

max time kernel
149s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
17/09/2026, 01:14

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General

Target
2026-09-17_754011576f298ff67ac3dfad3cc16561_elex_wannacry.exe
Size 54KB
Sample260917-blsrfavxay
SHA256 1bb997462ae0a9ac4ae13fafdcfc419aac98c9b51ef139b7b7299c00041bb236
MD5 754011576f298ff67ac3dfad3cc16561
SHA1 90bcd0aae16d4bba1d9799168999a436c952fb61
SHA512 0ae232d14d8b3397dc52a72f4ae19c34f0a2e42dd5abde04dc934825c441f5a690ccf6ba81095d5d5224b48268905208f44e72515ba000205b0efa26e0478ce7
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmp3VM85:fETVqhp8AvGBFswzLKiWmp7
TLSH
T181432138AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
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/0x0009000000019cb3-4.dat	family_cryptodef

Executes dropped EXE 1 IoCs

pid	Process
2088	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	2026-09-17_754011576f298ff67ac3dfad3cc16561_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 3936 wrote to memory of 2088	3936	2026-09-17_754011576f298ff67ac3dfad3cc16561_elex_wannacry.exe	87

C:\Users\Admin\AppData\Local\Temp\2026-09-17_754011576f298ff67ac3dfad3cc16561_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-09-17_754011576f298ff67ac3dfad3cc16561_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3936
- 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:2088

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 55KB
SHA256 449fc3c4f46351f551376679763f6ae0f8d73278ecf108557af14cce3f38581a
MD5 3ef87dbdf1983e081da34c14122264d3
SHA1 8e0dc908c539cf9d4f512f5c68f76a97e6714f90
SHA512 be5a9621c313c68cfc96140efface7b7923185d3fce33f05efbfd68ead1fa3db83a2322739b288ee5185ed3fa29ee3a0d654a77859a434c98c023dfe5c166c64
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmp3VM8Bk:fETVqhp8AvGBFswzLKiWmpA
TLSH
T1B3432138AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
MD5 SHA1 SHA512 SSDEEP TLSH

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