waski | fa238ea1cebeb8894f0e35817bc1cff6a024e4fd347824a181fb70661ee5ec6a

Analysis

max time kernel
148s
max time network
147s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
20/08/2026, 17:46

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General

Target
2026-08-20_67c9af976a0570bf7d177e1fb83407fa_elex_wannacry.exe
Size 18KB
Sample260820-wcjsdseh49
SHA256 fa238ea1cebeb8894f0e35817bc1cff6a024e4fd347824a181fb70661ee5ec6a
MD5 67c9af976a0570bf7d177e1fb83407fa
SHA1 676b0301dd40d4c8fc191001e3294e5cfd906ce3
SHA512 685e9e6c9f778589cc79dd82ee999862c77462f2e22b5890f87b48eb2edcc4f45f4d14f462d9e488693851b76c8d94fc477db342616a1cd8c9d93f4f83791ee0
SSDEEP 384:vLoUqhdO7+eN6GWl1pcG4rAAAAAHZMHBfTwEoP//lMnBY0VmP:vLoZWN6GGBZ2BbwEoP/NsBY0VmP
TLSH
T1CE8262384FC24AB6F3B3CAB285F797D6AE31F5A3F4120A0DD58507068823752AD85D6D
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/0x000a000000011390-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
4936	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_67c9af976a0570bf7d177e1fb83407fa_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 1272 wrote to memory of 4936	1272	2026-08-20_67c9af976a0570bf7d177e1fb83407fa_elex_wannacry.exe	90

C:\Users\Admin\AppData\Local\Temp\2026-08-20_67c9af976a0570bf7d177e1fb83407fa_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-20_67c9af976a0570bf7d177e1fb83407fa_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1272
- 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:4936

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 ddc39fce3f4612f0bbb7f753643d5a970df876ef381a831e333745014d9fa2e9
MD5 50c0afae42f8e650effb4c64f6e4b956
SHA1 7a923e8fca86cac5965e5d449cf266bf657fd8ee
SHA512 a1f0debc2da77dbcda19cbf2cb8356610a1ebb20fc890286821e7804581df95f2513a7f9840d821631cfc4dfb025e05b7bb5f07a29defa3033492d85e6d70903
SSDEEP 384:vLoUqhdO7+eN6GWl1pcG4rAAAAAHZMHBfTwEoP//lMnBY0VmBd:vLoZWN6GGBZ2BbwEoP/NsBY0Vmr
TLSH
T1FA9271384FC24AB6F3B3CAB285F797D6AE31F5A3F4020A0DD58507068823752AD85D6D
MD5 SHA1 SHA512 SSDEEP TLSH

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