waski | 9c8a4d1f7e9bb44b47bfa1906ccf8fc9f4c4e021436b884e618aa3b26aeb5f6b

Analysis

max time kernel
148s
max time network
142s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
10/11/2026, 11:48

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General

Target
2026-11-09_a8a7763205dd26943cb87b05dbb1cf78_elex_wannacry.exe
Size 22KB
Sample261110-nyvg1sfa45
SHA256 9c8a4d1f7e9bb44b47bfa1906ccf8fc9f4c4e021436b884e618aa3b26aeb5f6b
MD5 a8a7763205dd26943cb87b05dbb1cf78
SHA1 fadb5aa97446eb5d00948786ce4da94838241818
SHA512 215f3fd8a4c7bb2a0ad0b71d8e96ecac0d8ec192c8bd254975bfe792a2a3277a48531de44dfe0f36f7a547438aed2092ed837c147ed2b33469714cef5613703a
SSDEEP 384:uTQWckBeEd6ml1pcg7F3Gi+CW6HWYyieTcibz+T4Y:uxckEEd62J7F3Gig6H1ibz+MY
TLSH
T195A22F386FD51D73E3BBD7B685F7C1C6B934B0277A03691E80861B841823B129DA1E8D
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/0x00070000000187c7-3.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
1364	codecsupdater.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	codecsupdater.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	codecsupdater.exe

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	2026-11-09_a8a7763205dd26943cb87b05dbb1cf78_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 988 wrote to memory of 1364	988	2026-11-09_a8a7763205dd26943cb87b05dbb1cf78_elex_wannacry.exe	88

C:\Users\Admin\AppData\Local\Temp\2026-11-09_a8a7763205dd26943cb87b05dbb1cf78_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-11-09_a8a7763205dd26943cb87b05dbb1cf78_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:988
- C:\Users\Admin\AppData\Local\Temp\codecsupdater.exe
  "C:\Users\Admin\AppData\Local\Temp\codecsupdater.exe"
  2⤵
  - Executes dropped EXE
  - Reads the TCP/IP host and domain name from the registry
  - System Location Discovery: System Language Discovery
  PID:1364

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

System Network Configuration Discovery

T1016

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 22KB
SHA256 cd8fdde05927eac4d9d55194a66a291f3251e6eca13e436c3965852fe713623a
MD5 0ad670befce6838962568f5f705db029
SHA1 5a4e0ca21bd3d9cfffc81d350d6c5bb18b0bf302
SHA512 12c7d0b2479397c296ba7c573f1e00792eb3e9dc4f9bf38489a27defd65c4586958b40ea507e081b34ef6807ec4e81c94f9708adb0fec2c71db1cce19c28876a
SSDEEP 384:uTQWckBeEd6ml1pcg7F3Gi+CW6HWYyieTcibz+T41:uxckEEd62J7F3Gig6H1ibz+M1
TLSH
T154A23F386FD51973E3BBD7B685F7D1C6B934B0277A03691E80861B841823F129DA1E8D
MD5 SHA1 SHA512 SSDEEP TLSH

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