waski | ec845da4ddcbe63b49774645547448bd30b1bd170d4d2ec042313e8c8a94ad8a

Analysis

max time kernel
148s
max time network
153s
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, 18:43

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General

Target
2026-08-02_4a7d952cdf955f9a52a89b65dd0803b2_elex_wannacry.exe
Size 18KB
Sample260802-xc4m8sec36
SHA256 ec845da4ddcbe63b49774645547448bd30b1bd170d4d2ec042313e8c8a94ad8a
MD5 4a7d952cdf955f9a52a89b65dd0803b2
SHA1 d0e42b625a88df98f0074019d7f54f490518c919
SHA512 1556f845b48bc9712da3b6becb7881d3bd3a56c00d6de18cce057c2833566bc6792ad1ccf59890b281fdd81b643a3098730dcf17c6c7aa211e397be58e3becd2
SSDEEP 192:uTk5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmg+jjGiEloCFy3nL6/:uTQWckBeEd6ml1pcg7F3GiElpd2o
TLSH
T19582A6356BE55D73E3BBD7B196F7C1C66975742B6E03992E80481B882833E10DCA0F89
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/0x000a000000019cb8-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
2836	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_4a7d952cdf955f9a52a89b65dd0803b2_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 4612 wrote to memory of 2836	4612	2026-08-02_4a7d952cdf955f9a52a89b65dd0803b2_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-02_4a7d952cdf955f9a52a89b65dd0803b2_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-02_4a7d952cdf955f9a52a89b65dd0803b2_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4612
- 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:2836

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 4d166525342b7c36c5d6c7da90e7348dfe6eb451958a790f3c1cfe7d6ddf942a
MD5 56a76c48ad7554af8bc95991502a9096
SHA1 d856ecb3553274fa8ecd38907e5c1c16663f5ece
SHA512 35627be892a31f41a77b4c7e859d235a8491af6a080be78c87bc8257c5f1488d6425a2bbf80ab403bf2468112c4c63a764eaf84098c63e3b47f078db3faadd90
SSDEEP 192:uTk5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmg+jjGiEloCFy3nL68:uTQWckBeEd6ml1pcg7F3GiElpd27
TLSH
T1588296356BD55D73E3BBD7B196F7C1C65975742A2E03992E80481B882833F10DD60F89
MD5 SHA1 SHA512 SSDEEP TLSH

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