cryptodef | 87711f0a1be10babedd2b8e37e6658ca1b15be69e8792e89e5c6468ece232634

Analysis

max time kernel
149s
max time network
118s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
17/08/2026, 19:38

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General

Target
2026-08-17_37ab99c62b3f7460ec46fc0cebc62d42_elex_wannacry.exe
Size 54KB
Sample260817-yccp7ayaka
SHA256 87711f0a1be10babedd2b8e37e6658ca1b15be69e8792e89e5c6468ece232634
MD5 37ab99c62b3f7460ec46fc0cebc62d42
SHA1 2df538e891abcbff3f4181700a3d051560a10365
SHA512 91fdf91fe2558935a8639212ee451b8bcbfa64d0174aa0cac38e244f53a5d00a3574d3c0204228e84f308c15c5a92c41b80eb5b2b3088864edd9cbe2e7c1d810
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmpfrj0:fETVqhp8AvGBFswzLKiWmJ0
TLSH
T10D433238AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
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/0x000600000001b85f-3.dat	family_cryptodef

Executes dropped EXE 1 IoCs

pid	Process
4088	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	2026-08-17_37ab99c62b3f7460ec46fc0cebc62d42_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 4060 wrote to memory of 4088	4060	2026-08-17_37ab99c62b3f7460ec46fc0cebc62d42_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-17_37ab99c62b3f7460ec46fc0cebc62d42_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-17_37ab99c62b3f7460ec46fc0cebc62d42_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4060
- 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:4088

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 54KB
SHA256 da0b412a257d795dd0852ad1c356b646922c848ef0e17fc4c359d863433d1942
MD5 da47e8cad39238a4dda86065d0c3e62d
SHA1 e42668649e90c306560def92a6dcace22f5139ed
SHA512 a846226c76c87614781974d045a882be5bcf889f84595214abeb1cc7f4c7472e7e3462ba69fed0b8f8e8cdb7507f864f4d98ac7e3114f419b9cdae0b238b2857
SSDEEP 768:NHxbwCOVqhe+8YmcuwrvGBETGxtJH7jAKtzkyCzkKiWmpfrjA:fETVqhp8AvGBFswzLKiWmJA
TLSH
T102433238AED51572F37BDE758AF651C7AA747C227902280F4086B3540C33F76AEA5A0D
MD5 SHA1 SHA512 SSDEEP TLSH

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