waski | cba5fbaecc918da2ecd4e98e3dd12469930c7c22440624ec535a4a15ce158c7e

Analysis

max time kernel
150s
max time network
154s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
23/08/2026, 02:01

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General

Target
2026-08-22_b535b042715c282a2f979200d03a5995_elex_wannacry.exe
Size 32KB
Sample260823-cftbfswxft
SHA256 cba5fbaecc918da2ecd4e98e3dd12469930c7c22440624ec535a4a15ce158c7e
MD5 b535b042715c282a2f979200d03a5995
SHA1 0fb2c34d1d732af828cdcbadceb22b7e2c55ff97
SHA512 73f5fb672d69d77f7adfdabfe6345ff2b41c4a6270fc9315e741b3fbacb28d8445e7f1baa8eee03d103622d741f59943df5a0b67c078b9856efb83b386c98f5a
SSDEEP 192:uTq5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmAKLCAYV7/mjmTUsIk:uTKWckBeEd6ml1pcg7eMUUz62TAhB
TLSH
T1C6E252346BE45D73E3BBDBB586F7C1C5A975B4262D03992E80851B841833B11DCA0F9E
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/0x000d00000001c56c-3.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
4460	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	codecsupdater.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-22_b535b042715c282a2f979200d03a5995_elex_wannacry.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 5496 wrote to memory of 4460	5496	2026-08-22_b535b042715c282a2f979200d03a5995_elex_wannacry.exe	88

C:\Users\Admin\AppData\Local\Temp\2026-08-22_b535b042715c282a2f979200d03a5995_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-22_b535b042715c282a2f979200d03a5995_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5496
- 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:4460

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 32KB
SHA256 aa78fdb5e15cdc964c6a4cc6a9a984d9b33cbd16e9815d3c71427e8ab517422c
MD5 3f4fca3ac78305fc4985b29b4c357f74
SHA1 a525d0e64f49986d5699b6eefc72196fefd77a21
SHA512 302e8b0cf88f361c0f0ee2c977fb257c974384574bf3aca09e3bbb83a7e02866f12471513b5aa6c3563863344944ac6f0ab4740499d084dea2e7f2efdc1d0fed
SSDEEP 192:uTq5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmAKLCAYV7/mjmTUsIV:uTKWckBeEd6ml1pcg7eMUUz62TAhA
TLSH
T1EEE262386BE45D73E3BBDBB586F7C1C5A975B4262D03992E80851B841833B11DCA0F9E
MD5 SHA1 SHA512 SSDEEP TLSH

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