waski | 5d5554734286accb5736ae4be4dfc831f758a7a31d5b77dc124e819d877c8f88

Analysis

max time kernel
150s
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
27/07/2026, 22:54

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General

Target
2026-07-27_428f57645859cec8bdc3e1bed5fe1750_elex_wannacry.exe
Size 18KB
Sample260727-2vvkhadf89
SHA256 5d5554734286accb5736ae4be4dfc831f758a7a31d5b77dc124e819d877c8f88
MD5 428f57645859cec8bdc3e1bed5fe1750
SHA1 c964b617c0bc2b229c5eb8a3efdc5684beaa8a5f
SHA512 9f1dcb2a1b86d3a1188bf4d160cec42225b3d8dd85a7bfc667f92fd5934264a4bc64486d9202bfc4e64c299307ee78ada3feef9940e2dd5970e9d8eebd8f1943
SSDEEP 192:uTk5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmg+jjGiEloCFy3nL6p:uTQWckBeEd6ml1pcg7F3GiElpd2y
TLSH
T19282A6356BE55D73E3BBDBB196F7C1D66975742B2E03992E80481B882833E10DC60F89
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/0x0012000000016db3-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
5152	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	2026-07-27_428f57645859cec8bdc3e1bed5fe1750_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 4352 wrote to memory of 5152	4352	2026-07-27_428f57645859cec8bdc3e1bed5fe1750_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-07-27_428f57645859cec8bdc3e1bed5fe1750_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-27_428f57645859cec8bdc3e1bed5fe1750_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4352
- 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:5152

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 18KB
SHA256 b939cccc92de2b68e1d2f2d1287fbd271be45f315d4339ef5887706c131f39bf
MD5 11d14ae39df7829376f29c33a91da408
SHA1 0f8e0694a271833e0da759bda555909088c06313
SHA512 ff7ff4578866b543b31d975b95038c3d96351e4270e01cd75fc4cfc8a3b053611f410f9a5dfb81a0907b9d81c5c44403de036427beb08c8e37bb14dfef9c8937
SSDEEP 192:uTk5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmg+jjGiEloCFy3nL6T:uTQWckBeEd6ml1pcg7F3GiElpd2M
TLSH
T1EA82A6356BE55D73E3BBDBB586F7C1C56975742B2E03992E80481B881833E10DC60F89
MD5 SHA1 SHA512 SSDEEP TLSH

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