waski | 7ef1020c727175e405c373deffa0c3b3908a0ef265a54c0aeecdf99130fb12d7

Analysis

max time kernel
150s
max time network
130s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
20/08/2026, 03:48

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General

Target
2026-08-20_4cd2457ba5f1ca66da01bd1ced115adf_elex_wannacry.exe
Size 17KB
Sample260820-ecs8dsyhmb
SHA256 7ef1020c727175e405c373deffa0c3b3908a0ef265a54c0aeecdf99130fb12d7
MD5 4cd2457ba5f1ca66da01bd1ced115adf
SHA1 3bfd1b76aa09dcdb1dddfea076946a6ad61e2b76
SHA512 574aface389d8bfe668c3e5f9b4049acfaaffffdf38364bb75f7bc4b9ddb9dc7adfed647950bd84ff2758859e263094b627792afefe0a71f6ab4c5095dead2af
SSDEEP 384:vLoUqhdO7+eN6GWl1pcG4rAAAAAHZMHBfTwmX1F:vLoZWN6GGBZ2Bbwmv
TLSH
T1768263385FD28EB6F373CAB284F7D7D6AA31F5A3F4130A0DD58507068913642A885DAD
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/0x0008000000019cb5-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
4568	operaupdater.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	2026-08-20_4cd2457ba5f1ca66da01bd1ced115adf_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	operaupdater.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 1112 wrote to memory of 4568	1112	2026-08-20_4cd2457ba5f1ca66da01bd1ced115adf_elex_wannacry.exe	88

C:\Users\Admin\AppData\Local\Temp\2026-08-20_4cd2457ba5f1ca66da01bd1ced115adf_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-20_4cd2457ba5f1ca66da01bd1ced115adf_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1112
- C:\Users\Admin\AppData\Local\Temp\operaupdater.exe
  "C:\Users\Admin\AppData\Local\Temp\operaupdater.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4568

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

operaupdater.exe

Path C:\Users\Admin\AppData\Local\Temp\operaupdater.exe
Size 18KB
SHA256 0060a885adf9abd7215b4f244e98af4e577c17350877ae95f3b191ef112913ba
MD5 e7294544265be25656a777235b07b2c0
SHA1 0b7efb9651c6a67413bc5249ff829494be9607af
SHA512 71cc8edc7aa747f5ccd6785b1173d534a28d2b4781243e622d3a9b57d6628b7d9a7046e8af94d29d3eb42b693359ee5b0d3596f8e5851b06cf001ae1a3a28634
SSDEEP 384:vLoUqhdO7+eN6GWl1pcG4rAAAAAHZMHBfTwmX1q:vLoZWN6GGBZ2BbwmU
TLSH
T1738273385FD28AB6F373CAB284F7D7D6AA31F5A3F4130A0DD58507068813642A885DAD
MD5 SHA1 SHA512 SSDEEP TLSH

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