waski | 78131d119670303f03d16969c5bc5032d33dabedab6f22537a0b594ccf0dd4f5

Analysis

max time kernel
148s
max time network
145s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
08/08/2026, 08:41

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General

Target
2026-08-08_eb849ea3fc1486e76176a47b6d3b7978_elex_wannacry.exe
Size 29KB
Sample260808-klmpvsck4w
SHA256 78131d119670303f03d16969c5bc5032d33dabedab6f22537a0b594ccf0dd4f5
MD5 eb849ea3fc1486e76176a47b6d3b7978
SHA1 162a50d40ac7563a7cf13d07c97d73c21a974398
SHA512 af04e5673b1c9eaaaf4334f1cde896055439753804b5f860d38bf0910f938b2bafe885d7b981ead628c04b5e52b96b33434d713ce33478af047d1a9b1331e5fc
SSDEEP 768:uxckEEd62J798jBk3A6gow6vdBcl5sfuW5nh:cc3ji6kgi1Bc7sR5h
TLSH
T13ED2DD385EE51972D3BBDABAC5F691C6B935B0273E035D0E408607840C23F26EDA1B5E
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/0x000a000000019caa-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
6140	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	2026-08-08_eb849ea3fc1486e76176a47b6d3b7978_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 2776 wrote to memory of 6140	2776	2026-08-08_eb849ea3fc1486e76176a47b6d3b7978_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-08_eb849ea3fc1486e76176a47b6d3b7978_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-08_eb849ea3fc1486e76176a47b6d3b7978_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2776
- 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:6140

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 29KB
SHA256 e650f6bf078f0088ee40afb4c740e99f4496068ca6316ef1a0d7071459a035c0
MD5 ea8aad0758b4bffd80325670a61ce05c
SHA1 8192ab66bd1d14094e8c0896dff1fd1054d47dba
SHA512 b8409d78d67c8505dec95941c3abf07030bda71b7750a0415a26b72fcd7dbf30f47cc343ec2765604f7ef3f7e7c3fdc59de8d105731c32e5102253d7c95da38b
SSDEEP 768:uxckEEd62J798jBk3A6gow6vdBcl5sfuW5nC:cc3ji6kgi1Bc7sR5C
TLSH
T111D2DD385EE51972D3BBDABAC5F691C6B935B4273E035D0E408607840C23F26EDA1B5E
MD5 SHA1 SHA512 SSDEEP TLSH

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