waski | 2ab46042090d7b7a58a3e7cdb1969f547ff06fc346bae8832e6b34644c57b6c7

Analysis

max time kernel
148s
max time network
125s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
28/09/2026, 02:09

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General

Target
2026-09-27_9f51c79783e66aa7c9844cbe626c5505_elex_wannacry.exe
Size 22KB
Sample260928-clbnlass4n
SHA256 2ab46042090d7b7a58a3e7cdb1969f547ff06fc346bae8832e6b34644c57b6c7
MD5 9f51c79783e66aa7c9844cbe626c5505
SHA1 be649d07e27777863ffed62f224734700c2db154
SHA512 569c9b3b5cb0c73b8901f153c9cde3d5f582585d3e7fccde1f49fcc6bbbddcf397278459e508b7cf44b3b1ef8dfe17b0bfe1b420755ad7e67e0b1d07a4dfff70
SSDEEP 384:uTQWckBeEd6ml1pcg7F3Gih1uTRTcljilermJiMiA2r7a9A7:uxckEEd62J7F3Gih1uTRTcljilViM8rV
TLSH
T1CFA220395FE419B3E3BBD6B685F785C6B830B4273A03591E408607891C23F16EDA1B5E
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/0x000f00000001b890-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
4972	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	codecsupdater.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-09-27_9f51c79783e66aa7c9844cbe626c5505_elex_wannacry.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 1208 wrote to memory of 4972	1208	2026-09-27_9f51c79783e66aa7c9844cbe626c5505_elex_wannacry.exe	90

C:\Users\Admin\AppData\Local\Temp\2026-09-27_9f51c79783e66aa7c9844cbe626c5505_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-09-27_9f51c79783e66aa7c9844cbe626c5505_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1208
- 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:4972

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 98a494d8fa598cdb69b93cf897b430bc07d87b72277cc4c22d221321f1bd5fb8
MD5 d62e4444838db62c7cc3751f0e957aa7
SHA1 82b995b8774698cf99e96b145de163e9e3ec4367
SHA512 dc43a5675da9a12c5a2d4487226176bd5977c8922cfab257ec0e505b63de87a4781be9ffa93400e5f397b56030f06912087a52280d5b9208d610dd5af0cf2b5f
SSDEEP 384:uTQWckBeEd6ml1pcg7F3Gih1uTRTcljilermJiMiA2r7a9AV:uxckEEd62J7F3Gih1uTRTcljilViM8rL
TLSH
T168B220395FE419B3E3BBD6BAC5F681C6B830B4273A03591E408607891C23F16EDA1B5D
MD5 SHA1 SHA512 SSDEEP TLSH

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