waski | 43cdd2d7c2a37f49d8ab69c99dfec0f66efaf9232659b6957448f9cb26956dd6

Analysis

max time kernel
148s
max time network
152s
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, 14:12

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General

Target
2026-08-20_edcf87277ec1bbceee04484fdde211f8_elex_wannacry.exe
Size 19KB
Sample260820-rhxh8a11ft
SHA256 43cdd2d7c2a37f49d8ab69c99dfec0f66efaf9232659b6957448f9cb26956dd6
MD5 edcf87277ec1bbceee04484fdde211f8
SHA1 846c9b348557bf646add33a15cb1120b8749ae88
SHA512 4ee5329e0e359be1b39e0549eeab089518ea1a92ce6d5a6674c78782191e0e089e4eafdfcef0e5b7e7bc62501cc3641c3457c6167b0f5eb6882262fec2400ced
SSDEEP 384:vLoUqhdO7+eN6GWl1pcG4rAAAAAHZMHBfTwEoP//lMnBY0am6:vLoZWN6GGBZ2BbwEoP/NsBYL
TLSH
T1939275395FD24AB6F3B3CAB285F797D6EA31F5A3B4020A0DD08507058823B52ED85D6D
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/0x000700000001b884-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
3368	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_edcf87277ec1bbceee04484fdde211f8_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 4316 wrote to memory of 3368	4316	2026-08-20_edcf87277ec1bbceee04484fdde211f8_elex_wannacry.exe	88

C:\Users\Admin\AppData\Local\Temp\2026-08-20_edcf87277ec1bbceee04484fdde211f8_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-20_edcf87277ec1bbceee04484fdde211f8_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4316
- 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:3368

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 19KB
SHA256 6180913bd01deb199d7d68d67335b326131494c9057363361f701b5141b5e65a
MD5 93fa9642560cc91b40fac633d2994855
SHA1 549fd19baf1e9881f41c5c3df891ef96aeead99c
SHA512 b38b1d55e94f22ac67e877ebeb63373640fe882d5b65c1ce38f3cce5fba52cfea8ca82be553df49ba72881b7afb2b7ee19f29ef3bbb2be37ca77d1e1621e134f
SSDEEP 384:vLoUqhdO7+eN6GWl1pcG4rAAAAAHZMHBfTwEoP//lMnBY0aml:vLoZWN6GGBZ2BbwEoP/NsBYw
TLSH
T1379274385FD24AB6F3B3CAB285F797D6EA31F5A3B4020A0DD08507058823B52ED85D6D
MD5 SHA1 SHA512 SSDEEP TLSH

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