waski | 08cdbf877e8be42741394eac9344035991b551475ac1d4d37c353433c4c9106b

Analysis

max time kernel
148s
max time network
154s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
02/08/2026, 08:01

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General

Target
2026-08-02_c2bddfc3934873c9b6c35a1f70c5fc24_elex_wannacry.exe
Size 18KB
Sample260802-jwwvvafd67
SHA256 08cdbf877e8be42741394eac9344035991b551475ac1d4d37c353433c4c9106b
MD5 c2bddfc3934873c9b6c35a1f70c5fc24
SHA1 554348baa245b8be33a3bbe88728addf189ba75e
SHA512 29b6b9f29d9b90799b370ecebcf6ecca2b52d7f8baa998afd669f3065243bb28453f4bd0dfa5ca04af28a448e6f5556cf301b6c4920b2205afe7faeeed1e1bdc
SSDEEP 192:uTk5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmg+jjGiEloCFy3nL6g:uTQWckBeEd6ml1pcg7F3GiElpd2H
TLSH
T10F82A6356BD55D73E3BBD7B196F7C1C66975702B2E03992E80481B882833E10DCA0F89
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/0x000d00000001b1d0-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
816	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	2026-08-02_c2bddfc3934873c9b6c35a1f70c5fc24_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 3760 wrote to memory of 816	3760	2026-08-02_c2bddfc3934873c9b6c35a1f70c5fc24_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-02_c2bddfc3934873c9b6c35a1f70c5fc24_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-02_c2bddfc3934873c9b6c35a1f70c5fc24_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3760
- 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:816

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 18KB
SHA256 facf582f6d2ad8e2e3f45e86078edf21beac2435bd324657e660234cb9645e05
MD5 27504f41a89841f3d368ffc56f9a66b9
SHA1 d58f31cc4d3a7e6509a568742c70abadf25308d1
SHA512 4ecf7a6f6a1c3e7be05b650b7fb315e1b71745d9a1c26cdc4a27b3b57bd44f208e800f73395ec13f1da9221db23e8ae75031fd3668c66d894555004aa4e90899
SSDEEP 192:uTk5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmg+jjGiEloCFy3nL6m:uTQWckBeEd6ml1pcg7F3GiElpd29
TLSH
T10582A5356BE55D73E3BBD7B196F7C1C66975742B2E03992E80481B882833E10DCA0F89
MD5 SHA1 SHA512 SSDEEP TLSH

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