waski | 429098b73b47dccf32a062d22aa0a002f3dc2e6886b3550908c1572ecef47882

Analysis

max time kernel
149s
max time network
142s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
31/05/2026, 07:58

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General

Target
2026-05-31_d3ba653c12ad31ab45b4ce22feb37f53_elex_wannacry.exe
Size 29KB
Sample260531-jt3klsex4l
SHA256 429098b73b47dccf32a062d22aa0a002f3dc2e6886b3550908c1572ecef47882
MD5 d3ba653c12ad31ab45b4ce22feb37f53
SHA1 dc4309f28b0807496a4382b5e0ebe97111eb2c50
SHA512 5d3a009b77862776e697292f7de579d2b604e420fe6121353a1bb6d059032428929683edd24cb89f06a965dc4f039448e57ac1d95bac7e0a71043d0d4e3d6a2b
SSDEEP 192:uTq5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmAKLCAYV7/mjmTUsI5:uTKWckBeEd6ml1pcg7eMUUz6in
TLSH
T18BD2A5356BD45D73E3BBD7B586FBC1C5A975702B2E03992E80851B882C23A11DCA0F9D
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/0x00190000000256cc-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
4236	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	2026-05-31_d3ba653c12ad31ab45b4ce22feb37f53_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 5484 wrote to memory of 4236	5484	2026-05-31_d3ba653c12ad31ab45b4ce22feb37f53_elex_wannacry.exe	80

C:\Users\Admin\AppData\Local\Temp\2026-05-31_d3ba653c12ad31ab45b4ce22feb37f53_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-31_d3ba653c12ad31ab45b4ce22feb37f53_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5484
- 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:4236

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 bcc20e376e877ad900b11c41fd9efa58612ba703c32917d2ae62201b555035ff
MD5 bcb10be5e1652f00df1f8beedc7b1e6d
SHA1 fe28d181f9744426e36d7d58f1c481d0734393cd
SHA512 8645e171b5ce881cf98157505434c5da1d2b0d372a394674039ae38a954f84202313a992a6ba7727738912d438afbe979e1018ccaf573b0ba9c036371586ed58
SSDEEP 192:uTq5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmAKLCAYV7/mjmTUsIg:uTKWckBeEd6ml1pcg7eMUUz6ia
TLSH
T189D295356BD45D73E3BBD7B586FBC1C5A975702B2E03992E80851B882C23A11DCA0F9D
MD5 SHA1 SHA512 SSDEEP TLSH

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