waski | 39c25062f9f96fcb8645f2c4bc11cf736db519a13f618c07dc0ac10e343c95cb

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
03/06/2026, 17:37

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General

Target
2026-06-03_72e48562e4c444aade2a6a0105616ee2_elex_wannacry.exe
Size 29KB
Sample260603-v7e71scx2x
SHA256 39c25062f9f96fcb8645f2c4bc11cf736db519a13f618c07dc0ac10e343c95cb
MD5 72e48562e4c444aade2a6a0105616ee2
SHA1 57f9ce4a38ef67d61a0ef664f55a4e675045dfa0
SHA512 41306412d96d6f279cde1a832c1faa89f448bf23ef51fdb733f1b07de528f925ef025c771e90c1e6d951336de7b97d30198702210a4ff28371299066389f6845
SSDEEP 192:uTq5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmAKLCAYV7/mjmTUsIj:uTKWckBeEd6ml1pcg7eMUUz6it
TLSH
T1C4D295356BE45D73E3BBD7B586FBC1C5A975702B2E03992E80451B882C23A11DCA0F9D
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/0x002100000002b2ef-4.dat	family_waski

Executes dropped EXE 1 IoCs

pid	Process
3380	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	2026-06-03_72e48562e4c444aade2a6a0105616ee2_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 1144 wrote to memory of 3380	1144	2026-06-03_72e48562e4c444aade2a6a0105616ee2_elex_wannacry.exe	81

C:\Users\Admin\AppData\Local\Temp\2026-06-03_72e48562e4c444aade2a6a0105616ee2_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-06-03_72e48562e4c444aade2a6a0105616ee2_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1144
- 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:3380

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 0d3283686227e5f8457a5126c224b3539d94ff47a1435abb7c8d805273003103
MD5 c1ee7c555214e8776db5289153f6b1d9
SHA1 0ff8f37a81ccb40ee39fbadd9e285af1ab1007bd
SHA512 1a6ccca6a0451c657241face9ab9f492fe246d4026e5b4209b5b7c69bd0e5333c64883f8f549419342ca8ed0a33da27bdff4f29cb0df07884737f9e2035e54c4
SSDEEP 192:uTq5WckBezHYQRPK6k7TjHwCl1oynzc2Fjmf2mrETLLC0qmAKLCAYV7/mjmTUsIP:uTKWckBeEd6ml1pcg7eMUUz6iFD
TLSH
T193D2A5356BE45D73E3BBD7B586F7C1C5A975702A2E03992E80851B882C23A11DCA0F9D
MD5 SHA1 SHA512 SSDEEP TLSH

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