waski | 54ee080fb44f1dfd74095f93bf89241163ab7000cdbab755e891110f7209eaf3

Analysis

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

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
23/05/2026, 10:24

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General

Target
2026-05-23_1068743d7ba4a90a1a1e9cd0e556d3a9_elex_wannacry.exe
Size 31KB
Sample260523-mft8vsgs2n
SHA256 54ee080fb44f1dfd74095f93bf89241163ab7000cdbab755e891110f7209eaf3
MD5 1068743d7ba4a90a1a1e9cd0e556d3a9
SHA1 ede918cf6bd672ae2b5b60f2b78987af206cc9b0
SHA512 0010fac636b5bfba0ab1c3112da3a573f758dd7ec38107a39a8af8042af2b5f61f0c7c6db3f51e749716cdff5d6e017df1b791297a1645665bf802a44689e7e5
SSDEEP 384:uTKWckBeEd6ml1pcg7eMUyA9hIbieeqpg11:uPckEEd62J7PUyA9hIeeeQg1
TLSH
T1E8E240386AE45D73E3BBCBB586F7C1C6A975742A3E03591E80851B841C23F21DDA0B9D
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/0x001f00000002b232-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
1228	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	2026-05-23_1068743d7ba4a90a1a1e9cd0e556d3a9_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 1476 wrote to memory of 1228	1476	2026-05-23_1068743d7ba4a90a1a1e9cd0e556d3a9_elex_wannacry.exe	81

C:\Users\Admin\AppData\Local\Temp\2026-05-23_1068743d7ba4a90a1a1e9cd0e556d3a9_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-23_1068743d7ba4a90a1a1e9cd0e556d3a9_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1476
- 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:1228

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 31KB
SHA256 3c5c0e848f8309e84eff95d0be19bfd7af92c45b612976ebcdaa2a9d9fa92281
MD5 72717bace1ceac61f85a073473c5ab8d
SHA1 041563309ffd8b6ae2eff3277b576e89683f27e6
SHA512 d4306fbce4cef542f254f1feca76b9f9186e373be8614be154151d05ff8e9e3dac9b3d62a1a6d26b0500d933e8b0d9c663ecfb759d194bc5b15db6c3303576c9
SSDEEP 384:uTKWckBeEd6ml1pcg7eMUyA9hIbieeqpg1pD:uPckEEd62J7PUyA9hIeeeQg9
TLSH
T1F9E251386AE45D73E3BBCBB586F7C1C6A97574263E03591E80851B841C23F21DDA0B9D
MD5 SHA1 SHA512 SSDEEP TLSH

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