waski | 40074781709a18901454fd485e1b9f700e168ed743e5c71e19f4fc7832b50864

Analysis

max time kernel
148s
max time network
150s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
13/08/2026, 09:17

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General

Target
2026-08-13_6e515a395fc7f17978a4ada3c1563c5f_elex_wannacry.exe
Size 32KB
Sample260813-k9ghrawdmd
SHA256 40074781709a18901454fd485e1b9f700e168ed743e5c71e19f4fc7832b50864
MD5 6e515a395fc7f17978a4ada3c1563c5f
SHA1 dbe9e64f13fc59937e788e6d87e6d18bbf015901
SHA512 d8347411282e4cc4021635cf27f1131cb654705f292629f49907cc078face7908b3849f2a583ed0b4d3015d5e996e84c3b31cc8616e38f4d7bf62d7e7718c39f
SSDEEP 192:uTq5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmAKLCAYV7/mjmTUsIK:uTKWckBeEd6ml1pcg7eMUUz62TaB
TLSH
T129E251386BE45D73E3BBDBB586F7C1C5A975B4262E03992E80851B841C23B11DCA0F9D
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery downloader waski

Malware Config

Signatures

Family: Waski
Waski is a trojan downloader written in C++.
downloader waski

Detects Waski payload 1 IoCs

resource	yara_rule
behavioral2/files/0x000e00000001b1d0-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
756	codecsupdater.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	2026-08-13_6e515a395fc7f17978a4ada3c1563c5f_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	codecsupdater.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4456 wrote to memory of 756	4456	2026-08-13_6e515a395fc7f17978a4ada3c1563c5f_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-13_6e515a395fc7f17978a4ada3c1563c5f_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-13_6e515a395fc7f17978a4ada3c1563c5f_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4456
- C:\Users\Admin\AppData\Local\Temp\codecsupdater.exe
  "C:\Users\Admin\AppData\Local\Temp\codecsupdater.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:756

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

codecsupdater.exe

Path C:\Users\Admin\AppData\Local\Temp\codecsupdater.exe
Size 32KB
SHA256 ca4c7ae3ff3521d314622fbf2a98f02fe9914205176cc7b5e3799233bfaa4436
MD5 722a9fc128cf87d336dd4157cc0569ed
SHA1 43267afead994f3818c56528277f443c873bf2ec
SHA512 7397599e567c8255a45275f1da107dc5e03940fe1a45c50e1ab946081d89754deb184b6365037748661d7cfcc7d170ac9ebe473810e02179cc7ec1a96275ce91
SSDEEP 192:uTq5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmAKLCAYV7/mjmTUsIs:uTKWckBeEd6ml1pcg7eMUUz62Taz
TLSH
T146E251386BE45D73E3BBDBB586F7C1C5A975B4262E03992E80851B841C23B11DCA0F9D
MD5 SHA1 SHA512 SSDEEP TLSH

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