cryptodef | a26396fedb9fa91c1aaf35c91a87acd3d6e5eee0e9406495349fa9bb1ec6a30d

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
31/07/2026, 11:34

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General

Target
2026-07-31_8409aee365f0e1d2e553522d653f509e_elex_wannacry.exe
Size 54KB
Sample260731-nplthssamf
SHA256 a26396fedb9fa91c1aaf35c91a87acd3d6e5eee0e9406495349fa9bb1ec6a30d
MD5 8409aee365f0e1d2e553522d653f509e
SHA1 95abae8c75f5e51600f7aaae8b3995cf16c5bde9
SHA512 f2d035b17529ba362c233b29cc9d4b0a35a8f7e06e6fa1a9b98150e731d605c313467dbe907d091ea03d25d51c69b4cdf21499307bedbdeadeb768f01a61c241
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmpfrjI:fETVqhp8AvGBFswzLKiWmJI
TLSH
T1D9433238AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
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/0x000b00000001b315-4.dat	family_cryptodef

Executes dropped EXE 1 IoCs

pid	Process
5296	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	2026-07-31_8409aee365f0e1d2e553522d653f509e_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 4216 wrote to memory of 5296	4216	2026-07-31_8409aee365f0e1d2e553522d653f509e_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-07-31_8409aee365f0e1d2e553522d653f509e_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-31_8409aee365f0e1d2e553522d653f509e_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4216
- 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:5296

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 6e17c9e42468b8cec52880a23bedffa1f1b114007d3db930806571feb6284fdd
MD5 aa8206b2f5dbab8ecbd98a4e1657f760
SHA1 26add3c0cbd1eedf7d43af9b57a9dca30d6107e6
SHA512 aa0cf46f91f39bfaf3aeb210bb0cea0833d8345233ca02568ef397d718572123bf843a3e4e716bc2ee23289849e818e11bf92ff62bbb5152083de51015d5ae89
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmpfrj3:fETVqhp8AvGBFswzLKiWmJ3
TLSH
T10E433238AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
MD5 SHA1 SHA512 SSDEEP TLSH

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