waski | 6785fe639d74ad4c776dad4b7e700d9f069f8354a7edecacc26eb23fef416d98

Analysis

max time kernel
148s
max time network
136s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
25/08/2026, 10:09

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General

Target
2026-08-24_76a7febf1fbe8b17f7e1f556b6636f7f_elex_wannacry.exe
Size 28KB
Sample260825-l67ffazerh
SHA256 6785fe639d74ad4c776dad4b7e700d9f069f8354a7edecacc26eb23fef416d98
MD5 76a7febf1fbe8b17f7e1f556b6636f7f
SHA1 209244f7572fd92d2f528532a2efeb2b0646dfb9
SHA512 f98d130c3892de227be5bbac2d381d66347491665e2ad4cb35d55694e023339953f53d5a010d59f520b84390527778a46313989a6b18e5d16e648ca906adc759
SSDEEP 384:vLoUqhdO7+eN6GWl1pcG4rAAAAAHZMHBfTwEoP//lMnGJA55YyzM+2v4v:vLoZWN6GGBZ2BbwEoP/NUOAz11v
TLSH
T1F9D20D3D5FD55AB2E3B7CAB6C5F696C6FD31B463B9020D0E808603854C23B12ED91A6D
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/0x000500000001b6f0-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
5504	operaupdater.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	2026-08-24_76a7febf1fbe8b17f7e1f556b6636f7f_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	operaupdater.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4348 wrote to memory of 5504	4348	2026-08-24_76a7febf1fbe8b17f7e1f556b6636f7f_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-24_76a7febf1fbe8b17f7e1f556b6636f7f_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-24_76a7febf1fbe8b17f7e1f556b6636f7f_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4348
- C:\Users\Admin\AppData\Local\Temp\operaupdater.exe
  "C:\Users\Admin\AppData\Local\Temp\operaupdater.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:5504

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

operaupdater.exe

Path C:\Users\Admin\AppData\Local\Temp\operaupdater.exe
Size 28KB
SHA256 8b16606eae46c8ea349eb642c7452b34d6f0dc20df66753f3f3a498d26343903
MD5 a4ad736c84e37874eae37dcbb5a1469a
SHA1 d6f944d01b5daa566b11b4a784e5b30f119e87c2
SHA512 5aa2034785e5c2433f70b1002cb76335f7d1866c5267f96634cba5bebcd1046d6e2f82fbbd21bceb245c220b6348d4ed81bae30e36145b445fd12504c220159a
SSDEEP 384:vLoUqhdO7+eN6GWl1pcG4rAAAAAHZMHBfTwEoP//lMnGJA55YyzM+2v45Ar:vLoZWN6GGBZ2BbwEoP/NUOAz11m
TLSH
T1D4D20D3D5FD55AB2E3B7CAB6C5F696C6FD31B463B9020D0E808603854C23B12ED91A6D
MD5 SHA1 SHA512 SSDEEP TLSH

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