waski | 29ae18df07782644dde848d5b40d701a0f3a6d2706d790dcebcac14d428644d2

Analysis

max time kernel
148s
max time network
125s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
29/10/2026, 02:35

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General

Target
2026-10-28_f16582b7e26a0833ab13037063d97213_elex_wannacry.exe
Size 21KB
Sample261029-c24djswt7k
SHA256 29ae18df07782644dde848d5b40d701a0f3a6d2706d790dcebcac14d428644d2
MD5 f16582b7e26a0833ab13037063d97213
SHA1 b3f452722e085276114804b093ec2dbeba10493f
SHA512 cd37e435af29ee39c35bd6121e515fc71e5ff736044ee64945a85b422057c02934d306ea09b0b27c135c3f13c80006f946ac1ec6d8d7ac380d5f6855441e6970
SSDEEP 384:uTQWckBeEd6ml1pcg7F3Gi+CW6HWYyieTcibz+T4Q:uxckEEd62J7F3Gig6H1ibz+MQ
TLSH
T1B6A22F386ED51D73E3BBD7B685F7C2C6B934B0277A03591E80861B851823B129DA1E8D
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/0x00070000000113bc-3.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
4240	codecsupdater.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	codecsupdater.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	codecsupdater.exe

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	2026-10-28_f16582b7e26a0833ab13037063d97213_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 3688 wrote to memory of 4240	3688	2026-10-28_f16582b7e26a0833ab13037063d97213_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-10-28_f16582b7e26a0833ab13037063d97213_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-28_f16582b7e26a0833ab13037063d97213_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3688
- C:\Users\Admin\AppData\Local\Temp\codecsupdater.exe
  "C:\Users\Admin\AppData\Local\Temp\codecsupdater.exe"
  2⤵
  - Executes dropped EXE
  - Reads the TCP/IP host and domain name from the registry
  - System Location Discovery: System Language Discovery
  PID:4240

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

System Network Configuration Discovery

T1016

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 22KB
SHA256 70de56eedcbe5489fb41c0ea2e46df04d1bd515b15138fa6cd0ee4def5076316
MD5 d1b1b48fa51bf3dd22e44a5ff8106c4b
SHA1 d5a81388601f17f82585c117a980a46b0809892e
SHA512 40b746a38bbb7a06c1ff863b715c6716110c4a58d0a2ab5f50413ad72be9b8cfc4d6e8f8b9455134c18d13b2d19a4877f48a85ea7da8be73d6e9231acbd29b72
SSDEEP 384:uTQWckBeEd6ml1pcg7F3Gi+CW6HWYyieTcibz+T4m:uxckEEd62J7F3Gig6H1ibz+Mm
TLSH
T1A8A220386ED51D73E3BBD7B685F7C1C6B934B0277A03591E80861B851823B129DA1E8D
MD5 SHA1 SHA512 SSDEEP TLSH

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