waski | 45e11bdec19b166834f1f4571af2e5ea49bf69f01994043658b41c5f97e0e48e

Analysis

max time kernel
148s
max time network
139s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
09/08/2026, 16:02

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General

Target
2026-08-09_c285ef4b1d0603a7935d07f74ec49ac0_elex_wannacry.exe
Size 31KB
Sample260809-tgznas1elf
SHA256 45e11bdec19b166834f1f4571af2e5ea49bf69f01994043658b41c5f97e0e48e
MD5 c285ef4b1d0603a7935d07f74ec49ac0
SHA1 717b4c14e4d872de643c1a61e3fc4622fa5ceb23
SHA512 7ebf17046c05c7743d293b21950300fef06ae3f472b227ded081b3b8b2f00666df46e4d47c616aaef51195300959fe7e4d45eed7017963d20143f04cc6f49048
SSDEEP 192:uTq5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmAKLCAYV7/mjmTUsIX:uTKWckBeEd6ml1pcg7eMUUz629
TLSH
T10AE273346BE45D73E3BBDBB586F7C1C5A975742A2E03992E80851B881C33B11DCA0F99
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/0x000a000000019cc1-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
4248	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	codecsupdater.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-09_c285ef4b1d0603a7935d07f74ec49ac0_elex_wannacry.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4252 wrote to memory of 4248	4252	2026-08-09_c285ef4b1d0603a7935d07f74ec49ac0_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-09_c285ef4b1d0603a7935d07f74ec49ac0_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-09_c285ef4b1d0603a7935d07f74ec49ac0_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4252
- 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:4248

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 31KB
SHA256 65155bc072f89fb87b9a4faeed0f18b14473c2c6f2b2a5ce5ebb477f44c0a32e
MD5 1bf9cf23eab10e7caf18af0b43e105bb
SHA1 cdcb65530b7970631dbae939cb49bb48b2530751
SHA512 893807be10adf50917be67944120f5a9b18f4dd149090db13dd9e1804f6bfd2f06ba48e22c7d706885e1bbf651369abfef095909c3dcbdb9ea7fde11af6b2d01
SSDEEP 192:uTq5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmAKLCAYV7/mjmTUsI5:uTKWckBeEd6ml1pcg7eMUUz62T
TLSH
T13AE272346BE45D73E3BBDBB586F7C1C5A975742A2E03992E80851B881C33B11DCA0F99
MD5 SHA1 SHA512 SSDEEP TLSH

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