waski | 4a77b27fb2ff0a0e64f7eb4383e7a99b7e39c309a753bd12c0e9adca5bd72dc2

Analysis

max time kernel
149s
max time network
151s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
09/06/2026, 00:52

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General

Target
2026-06-09_ea57e496bfe54a4dc1b0fb11646547f8_elex_wannacry.exe
Size 20KB
Sample260609-a8chash17v
SHA256 4a77b27fb2ff0a0e64f7eb4383e7a99b7e39c309a753bd12c0e9adca5bd72dc2
MD5 ea57e496bfe54a4dc1b0fb11646547f8
SHA1 c3ebe3b4f3541ea46b4cc2eb196a6e200d4f411b
SHA512 09db09b8032d1f0badfdf50a531132a84948509601d319dde98e7c1f72fc680ca3890020d6ce88b5ad32a4848892e633130fdf6d76e4d52e6a033764b1a9606a
SSDEEP 192:uTk5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmg+jjGimebgrJWlkGw:uTQWckBeEd6ml1pcg7F3GiSrI8raK
TLSH
T1BB9285345FD60EB2E3BBD7F285F7D2C6A975B0377A035A2E80451B841823A11DDA0E9D
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/0x001e00000002b377-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
2296	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	2026-06-09_ea57e496bfe54a4dc1b0fb11646547f8_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 3172 wrote to memory of 2296	3172	2026-06-09_ea57e496bfe54a4dc1b0fb11646547f8_elex_wannacry.exe	81

C:\Users\Admin\AppData\Local\Temp\2026-06-09_ea57e496bfe54a4dc1b0fb11646547f8_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-06-09_ea57e496bfe54a4dc1b0fb11646547f8_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3172
- 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:2296

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 20KB
SHA256 44e808fb2dc735f9a5cfaf69b0755eb323c424a4effd1e5c4b370a1b4661aa57
MD5 378a9362c338d25704af1bd048216989
SHA1 9d9d31e4769bcf688ab7255fe9a1daa2afc99cb3
SHA512 9c5f60095508a12dda1f3e7607e45bd11ffdd6b41cdba6cba430b24bec3096c213faf22cfb20428241d3d5dc52f928a12200d54be36fb126523d515b4bfeb12b
SSDEEP 192:uTk5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmg+jjGimebgrJWlkG6:uTQWckBeEd6ml1pcg7F3GiSrI8rag
TLSH
T164A285345FD50EB2E3BBD7F285F7D2C6A975B0377A035A2E80451B841823A11DDA0E9D
MD5 SHA1 SHA512 SSDEEP TLSH

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