waski | a178a79c3589bcdfbfebdab529fec91965a5d4276032f41903f2b67336d501be

Analysis

max time kernel
149s
max time network
149s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
05/06/2026, 22:48

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General

Target
2026-06-05_b488ab8b50592b7b147a4424d1e903ec_elex_wannacry.exe
Size 20KB
Sample260605-2rfbeaf13n
SHA256 a178a79c3589bcdfbfebdab529fec91965a5d4276032f41903f2b67336d501be
MD5 b488ab8b50592b7b147a4424d1e903ec
SHA1 5d418d3b5e7a49fbe07ba698f2b76ba09f9ebf44
SHA512 d6b8d3382c79b1a0735036c32151a109a4c45ed2ac6e21ff6aa0c2ab427c224ee0626085ebf5170f7652cbb8ea0a435353366e26deff0682f5ec9cc6b1f1ff5f
SSDEEP 192:uTk5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmg+jjGimebgrJWlkGh:uTQWckBeEd6ml1pcg7F3GiSrI8ra/
TLSH
T1ED9285345FD50EB2E3BBD7F285F7D2C6A975B0377A035A2E80451B881823A11DDA0E9D
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/0x0009000000025ad7-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
4356	codecsupdater.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	2026-06-05_b488ab8b50592b7b147a4424d1e903ec_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 2360 wrote to memory of 4356	2360	2026-06-05_b488ab8b50592b7b147a4424d1e903ec_elex_wannacry.exe	79

C:\Users\Admin\AppData\Local\Temp\2026-06-05_b488ab8b50592b7b147a4424d1e903ec_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-06-05_b488ab8b50592b7b147a4424d1e903ec_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Users\Admin\AppData\Local\Temp\codecsupdater.exe
  "C:\Users\Admin\AppData\Local\Temp\codecsupdater.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4356

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

codecsupdater.exe

Path C:\Users\Admin\AppData\Local\Temp\codecsupdater.exe
Size 20KB
SHA256 0ab27d0fc4a5c0209bff9570264d0f7e15593452b340f640b2cb0d4a29c99753
MD5 49fe87cb6762da69ba72d4fff09326aa
SHA1 d1c779bc3eaee9a8bc226b78902023af97723445
SHA512 04cb3fb5be13e8fc2be31252c373236f2a510eb5167770a845138fd1457e78bfabd8907b093138453950db8d2fe61ea56bea55fc12a5625d4b7bb9eab8006e0a
SSDEEP 192:uTk5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmg+jjGimebgrJWlkG2:uTQWckBeEd6ml1pcg7F3GiSrI8rak
TLSH
T18F9284345FD50EB2E3BBD7F285F7D2C6A975B0377A035A2E80451B881823A11DDA0E9D
MD5 SHA1 SHA512 SSDEEP TLSH

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