waski | a976b308681870f734adbf6777eca83d3b01ac2ce02df55db52996f01115e7d8

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
04/08/2026, 16:39

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General

Target
2026-08-04_1212a2d29d1674e9bb8af7b47f2653b0_elex_wannacry.exe
Size 18KB
Sample260804-t6epesam61
SHA256 a976b308681870f734adbf6777eca83d3b01ac2ce02df55db52996f01115e7d8
MD5 1212a2d29d1674e9bb8af7b47f2653b0
SHA1 2479355b67f1c751c731b684a45cbe47cb89649e
SHA512 203fc6aa685ab874fccc8ab114d5e239fe34d6cc7e3bd7fc552e293cffc9393e1bc90316406d501f702cd5106b0e30137e67905606b6e84d4e3c61a1904ead29
SSDEEP 192:uTk5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmg+jjGiEloCFy3nL6I:uTQWckBeEd6ml1pcg7F3GiElpd2v
TLSH
T1208295356BD55D73E3BBDBB596F7C1C66875742B2E03992E80481B882833A11DCA0F89
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/0x000c00000001136a-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
3376	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	2026-08-04_1212a2d29d1674e9bb8af7b47f2653b0_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 3368 wrote to memory of 3376	3368	2026-08-04_1212a2d29d1674e9bb8af7b47f2653b0_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-04_1212a2d29d1674e9bb8af7b47f2653b0_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-04_1212a2d29d1674e9bb8af7b47f2653b0_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3368
- 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:3376

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 11a46d951e0240c74504d5bdab7e32e4b4d8c0c86b2a665d86429c014454c5e2
MD5 83e069f31bdff1a4d4eeb58bc9922fa8
SHA1 e26f51f388ee3159daad57fbccbc5d4be712090a
SHA512 a0dd012951382df9927a9fe3984d7eab67a8b973a61eeb13b06249eac27440799495e64141956b6931bfeeb64a17990e76229654cc8a8bf75e0ae1f961dbd92e
SSDEEP 192:uTk5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmg+jjGiEloCFy3nL6R:uTQWckBeEd6ml1pcg7F3GiElpd2y
TLSH
T14D8295356BD55D73E3BBDBB596F7C1C66875742B2E03992E80481B882833A11DCA0F89
MD5 SHA1 SHA512 SSDEEP TLSH

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