waski | b64ca26ab1296988cf1a393311c7c7ea765d178b1d710372cf71ba6c412c5fc2

Analysis

max time kernel
148s
max time network
138s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
20/08/2026, 03:49

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General

Target
2026-08-20_37f72769bb86554595aba17520af4515_elex_wannacry.exe
Size 15KB
Sample260820-edbdzassfx
SHA256 b64ca26ab1296988cf1a393311c7c7ea765d178b1d710372cf71ba6c412c5fc2
MD5 37f72769bb86554595aba17520af4515
SHA1 5fbe71a1254fdf7d42c792be26dfabe373db53d0
SHA512 6109a3a9d3bed58a5c2b30993c4f82e1a2fbedfdab2d3ae0a28a2745314e63fe2c0ca4a409a7765dc77950e06b7d22cc493fd2ca7f1bdcd995b56d4625117dba
SSDEEP 192:uTk5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmtBUPN2Rp8Jim5Trs7:uTQWckBeEd6ml1pcg79UP4EJzZsxd
TLSH
T10062B5355AD40C73E3FB83F581FBC1DAA865742F3703593F94892B893D23A11ACA4699
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/0x000a000000016cdf-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
5552	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	2026-08-20_37f72769bb86554595aba17520af4515_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 3852 wrote to memory of 5552	3852	2026-08-20_37f72769bb86554595aba17520af4515_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-20_37f72769bb86554595aba17520af4515_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-20_37f72769bb86554595aba17520af4515_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3852
- 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:5552

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 15KB
SHA256 aefb71a406db235db47e1dedd749f4b1dcf0e0ddde95b61ac6e5108b737b146c
MD5 ef70e13460eaf54f61a927c3f1ec15d3
SHA1 d12124a285cfb437fceba95c1d088c5acfbbb48f
SHA512 1893c92bebafaff0d63eca233c8b7d4edec8ee6970d7cc4e49f4e8a769e1698c34b0a031943267227c3172dc4bab5362688b14df445aa21cc358a9b425bb6abe
SSDEEP 192:uTk5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmtBUPN2Rp8Jim5TrsS:uTQWckBeEd6ml1pcg79UP4EJzZsxQ
TLSH
T14362C5355AD40C73E3FB83F581FBC1DAA864742F3703593F94892B893D23A11ACA4699
MD5 SHA1 SHA512 SSDEEP TLSH

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