waski | e08aed5fc316e1c00d44f4fa3a98cc5c176aacd40ee4594db9c8b3da29a02981

Analysis

max time kernel
149s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
19/04/2026, 04:31

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General

Target
2026-04-19_1f45300422ebc40a47445e7ef3417025_elex_wannacry.exe
Size 19KB
Sample260419-e5k3gscv4r
SHA256 e08aed5fc316e1c00d44f4fa3a98cc5c176aacd40ee4594db9c8b3da29a02981
MD5 1f45300422ebc40a47445e7ef3417025
SHA1 15986972c78f149d5d73c1942a3dd47e6be18a8c
SHA512 d1ddc0be8285eff4f3a9aace4346161d7deb3bb14bf000ca940145b175322e8a2a9a0d6dc26097903865976921a3c4ae920f7f25de75262b0c837ee3ed06bf69
SSDEEP 384:uTQWckBeEd6ml1pcg7F3GiSrI8xXU1pwP:uxckEEd62J7F3GiF1q
TLSH
T1B69284345FD51EB2E3B7D7F285F7C2CAA975B03B76035A2E80851F891823A019C90E9D
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/0x000800000002a04f-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
5508	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	2026-04-19_1f45300422ebc40a47445e7ef3417025_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 784 wrote to memory of 5508	784	2026-04-19_1f45300422ebc40a47445e7ef3417025_elex_wannacry.exe	79

C:\Users\Admin\AppData\Local\Temp\2026-04-19_1f45300422ebc40a47445e7ef3417025_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-04-19_1f45300422ebc40a47445e7ef3417025_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:784
- 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:5508

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 19KB
SHA256 b1c6fae11966cfff3ba2929fa8f90dc1dbe00eaa0eec6f811d8768d091ea7cf6
MD5 de96f359626ace576950022912988c10
SHA1 0acebf15e496dbb8191cffcd8cf433a9da53049e
SHA512 e6a42d9d0f32e25908aa85676128ac5d93bbe1c65864a34546dade6e54b85283fc181b9ccebf42d0257eda52ba5d7222e585982c254ded82fd13d2a661fa297c
SSDEEP 384:uTQWckBeEd6ml1pcg7F3GiSrI8xXU1pwg:uxckEEd62J7F3GiF1h
TLSH
T17B9284345FD51EB3E3B7D7F285F7C2C6A975B43B7A035A2E80851B851823A019C90E9D
MD5 SHA1 SHA512 SSDEEP TLSH

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