cryptodef | 71b97608f0d4125a8c4e3c4e537f1432b27caded1458d3c89a788292908562a9

Analysis

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

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
05/06/2026, 22:16

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General

Target
2026-06-05_5594c836cf8077a149fe3baee25e0917_elex_wannacry.exe
Size 53KB
Sample260605-16wfhaet8t
SHA256 71b97608f0d4125a8c4e3c4e537f1432b27caded1458d3c89a788292908562a9
MD5 5594c836cf8077a149fe3baee25e0917
SHA1 8337a811cbdfdf710bda4ca3711188e56faf6b26
SHA512 731020258f47d80467361acb07fee6203781620401bbf87b94f63cb8a7371648310cbece6cd7144811734d0e61608452c1784f4fca735ace2013e27f0a4e87af
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmpfrn:fETVqhp8AvGBFswzLKiWmV
TLSH
T1A0334338AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
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/0x002800000002b20c-4.dat	family_cryptodef

Executes dropped EXE 1 IoCs

pid	Process
4472	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	2026-06-05_5594c836cf8077a149fe3baee25e0917_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 2760 wrote to memory of 4472	2760	2026-06-05_5594c836cf8077a149fe3baee25e0917_elex_wannacry.exe	80

C:\Users\Admin\AppData\Local\Temp\2026-06-05_5594c836cf8077a149fe3baee25e0917_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-06-05_5594c836cf8077a149fe3baee25e0917_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2760
- 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:4472

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 53KB
SHA256 647dbb75c7f25d804cb05e28ccaa8fab44cd9368058b0d609bd70078a4c992fe
MD5 ec7a64e6dc97985383a654ae10e8b9cc
SHA1 b8bd0f050d4a6286e6e15cbe5258dc0a47ae3a05
SHA512 bdf8486bb834bf588eec10c5c0db56ba974081ddc385b383fc1235d7e27de86eee22df04faa1f5da7d154a87c78053aa52cbed43355b76565db9dc8b92ff996e
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmpfrh:fETVqhp8AvGBFswzLKiWmT
TLSH
T1B6334338AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
MD5 SHA1 SHA512 SSDEEP TLSH

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