waski | b33a638d20876b2c779b7db14031cba48238eaf2c7d9aa3e492fdbf4b1cae0fb

Analysis

max time kernel
148s
max time network
151s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
02/08/2026, 14:06

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General

Target
2026-08-02_88cec2e7ecf70c9b01a4f405da2922df_elex_wannacry.exe
Size 32KB
Sample260802-ref23avaph
SHA256 b33a638d20876b2c779b7db14031cba48238eaf2c7d9aa3e492fdbf4b1cae0fb
MD5 88cec2e7ecf70c9b01a4f405da2922df
SHA1 393ffa6215c477b8aa06f48e8d06c72e017cb0cc
SHA512 b2a46dfdbefa39a9d68797a1db03ad52ddebdc7cf374deec682ec1c524e18df26cac5ca37ae7dc9058956fcf86ff2559104ed5e9f30c700b94e98c0e4a6bf1e4
SSDEEP 192:uTq5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmAKLCAYV7/mjmTUsIT:uTKWckBeEd6ml1pcg7eMUUz62TAhy
TLSH
T139E262346BE45D73E3BFDBB586F7C1C5A975B42A2E03992E80851B841833A11DCA0F9D
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/0x000f00000001b1d0-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
4984	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	2026-08-02_88cec2e7ecf70c9b01a4f405da2922df_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 1728 wrote to memory of 4984	1728	2026-08-02_88cec2e7ecf70c9b01a4f405da2922df_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-02_88cec2e7ecf70c9b01a4f405da2922df_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-02_88cec2e7ecf70c9b01a4f405da2922df_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1728
- 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:4984

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 8164ea13a5cf2a3891c14aa704c23002af8e5e8e7d2f02a34a78244281e5d23e
MD5 edde396c98e069c6029467bfab6dc0a4
SHA1 a015c9c05049c1b350396e2350289ccab18cf186
SHA512 ac60e36183679820dd827b08dd7a943c9cb069fe0fa22e73bfc427aa713f9df340f8c2933bbd28ba0c066eed864dc952a2ece03a5d50e80507234f0bc87674b9
SSDEEP 192:uTq5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmAKLCAYV7/mjmTUsIS:uTKWckBeEd6ml1pcg7eMUUz62TAhT
TLSH
T150E261346BE45D73E3BFDBB586F7C1C6A975B4262E03992E80851B841833A11DCA0F9D
MD5 SHA1 SHA512 SSDEEP TLSH

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