waski | f3f9c206be668b893e908385548651afd7c89f1cddd01b43960c109a19df1d35

Analysis

max time kernel
149s
max time network
153s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
16/05/2026, 08:23

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General

Target
2026-05-16_16d4abb9007491f4d496d8fbae60fb39_elex_wannacry.exe
Size 15KB
Sample260516-j94gvaby41
SHA256 f3f9c206be668b893e908385548651afd7c89f1cddd01b43960c109a19df1d35
MD5 16d4abb9007491f4d496d8fbae60fb39
SHA1 7b563fa89ec46f396030c35fde661c571fc0bc2e
SHA512 c1418ec3bed0bb8548cf327ddc8bcfc39b00163c866eb6046f2772d9046b8dca19afe1a266d1209336a6583559b64467328301cb26331a98e456077cd89c64a3
SSDEEP 192:uTk5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmg+jjGiEloCFy3k:uTQWckBeEd6ml1pcg7F3GiElpp
TLSH
T11472C6356AD40C73E3BBD3B195FBC1D6A965702F3703593F90882B893D23A119D90A8D
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/0x001d00000002b3a1-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
4908	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	2026-05-16_16d4abb9007491f4d496d8fbae60fb39_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 1220 wrote to memory of 4908	1220	2026-05-16_16d4abb9007491f4d496d8fbae60fb39_elex_wannacry.exe	80

C:\Users\Admin\AppData\Local\Temp\2026-05-16_16d4abb9007491f4d496d8fbae60fb39_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-16_16d4abb9007491f4d496d8fbae60fb39_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1220
- 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:4908

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 16KB
SHA256 5b19df6700ca0c5f9b545614b6837ab25de878cab1f06fefdad0f8702de5a2af
MD5 6593fba05fa6d6b0c0c5927b2d4c1988
SHA1 a191702062d4941976e79b1d6b639ea8c7dea6da
SHA512 d9778737ece7b1bd7c246e93adc329a1b9ce19132d7a17350241b0df1bfbef9ca05762d0f8ad9e1c529c6b69c96d97155a220bf0b70d9fad2b52f3793c21a8e1
SSDEEP 192:uTk5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmg+jjGiEloCFy3p:uTQWckBeEd6ml1pcg7F3GiElpU
TLSH
T15272D6356AD41C73E3FBD3B195FBC1D66965702F3703592F90882B493D23A119D90A8D
MD5 SHA1 SHA512 SSDEEP TLSH

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