waski | 5d5554734286accb5736ae4be4dfc831f758a7a31d5b77dc124e819d877c8f88

Analysis

max time kernel
599s
max time network
550s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
28/07/2026, 02:04

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General

Target
5d5554734286accb5736ae4be4dfc831f758a7a31d5b77dc124e819d877c8f88.exe
Size 18KB
Sample260728-chkr4ahn7y
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/0x000500000000053e-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
5260	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	5d5554734286accb5736ae4be4dfc831f758a7a31d5b77dc124e819d877c8f88.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	codecsupdater.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 5976 wrote to memory of 5260	5976	5d5554734286accb5736ae4be4dfc831f758a7a31d5b77dc124e819d877c8f88.exe	89

C:\Users\Admin\AppData\Local\Temp\5d5554734286accb5736ae4be4dfc831f758a7a31d5b77dc124e819d877c8f88.exe
"C:\Users\Admin\AppData\Local\Temp\5d5554734286accb5736ae4be4dfc831f758a7a31d5b77dc124e819d877c8f88.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5976
- 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:5260

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k GPSvcGroup
1⤵
PID:5228

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 cf072bffa1c2682722de870d79abe19baa57811a6e1bd45d0c901fd9184298e1
MD5 04360eb84b4789839bc85d31da8f76c1
SHA1 e5368c329c55acf60b3d77e69b18368338ababf1
SHA512 0f13899d40572fa61b9c97b2127e2dddc5e18db4b9a1581112daacf708e4dad88a4eeba1bfad95e24c4bef50ac67d8b644200ee5b5aba399cd4ca51d547a432f
SSDEEP 192:uTk5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmg+jjGiEloCFy3nL6N:uTQWckBeEd6ml1pcg7F3GiElpd22
TLSH
T17482A5356BE55D73E3BBDBB196F7C1C56975742B2E03992E80481B882833E11DCA0F89
MD5 SHA1 SHA512 SSDEEP TLSH

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