waski | 8eff4f3d7b169a4cb6da78810e07c941d7394f070371d105423ff3c49abb1e66

Analysis

max time kernel
150s
max time network
156s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
26/08/2026, 16:18

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General

Target
2026-08-25_993af5e53f25b57a39a30704a04277c1_elex_wannacry.exe
Size 34KB
Sample260826-tr2weagj31
SHA256 8eff4f3d7b169a4cb6da78810e07c941d7394f070371d105423ff3c49abb1e66
MD5 993af5e53f25b57a39a30704a04277c1
SHA1 a4d9f2cdd4a1c23249b1641e08a2f4d397d06e14
SHA512 85c5148c79d2183873ee055e039dfcadd3b56d4b56836f734885bfafa1194093615734fe21bdde12d8fe1d0a201a4f0984840eeb559f9d709c081e01e1f1ea88
SSDEEP 768:uxckEEd62J798jBk3A6gow6vdBcl5sfuW5nrA8cHn0:cc3ji6kgi1Bc7sR58v0
TLSH
T180F2CF386EE91972D3BBDBB6C6F691C6B975B4233D03580E408647840C23F26EDA1B5D
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/0x001100000001b671-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
4056	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	codecsupdater.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-25_993af5e53f25b57a39a30704a04277c1_elex_wannacry.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 2044 wrote to memory of 4056	2044	2026-08-25_993af5e53f25b57a39a30704a04277c1_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-25_993af5e53f25b57a39a30704a04277c1_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-25_993af5e53f25b57a39a30704a04277c1_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2044
- 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:4056

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 34KB
SHA256 f9c62e899dfd0e5ed52388087fefc8b56fbb6bba68b48f6b7be6efb4de9262d7
MD5 066c8948996e08b0ef2aaca79a0d112f
SHA1 e1ee4b90e5c70c7549fd39d52389ebf8238d3d5e
SHA512 5efd21ef6d0dc597b950aa38e02d69254280901d386403465822a7f9b348a378d7c68be4e5b71d37150ca6385b0d7edec225d7db135b8bf4c9cfca28af7da399
SSDEEP 768:uxckEEd62J798jBk3A6gow6vdBcl5sfuW5nrA8cHnGw:cc3ji6kgi1Bc7sR58vGw
TLSH
T19DF2BF386EE91972D3BBDBB6C6F691C6B975B4233D03580E408647840C23F26EDA1B5D
MD5 SHA1 SHA512 SSDEEP TLSH

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