wannacry | ee3c687569e75bb9dba59fa396e65b0d9f9d6551b75fbe92171acba675b14cff

General

Target

2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Size

5.0MB
MD5

42baa2aed9aa0eb415360c16643e98e8
SHA1

6be2960661b80e5def2a7dd07a960af569283b1a
SHA256

ee3c687569e75bb9dba59fa396e65b0d9f9d6551b75fbe92171acba675b14cff
SHA512

65cfe979bf9a05f606a4837848364cd6ee09cf010f930b9ccb622f3a2fc6c6d597d95c5e8c58c90283a202d373722be7fdd5694fc8c1df6d115fa4f3d23c10c8
SSDEEP

49152:2nAQqMSPbcBVH6SAARdhnvxJM0H9PAMEcaEau3R8yAH1plAH:yDqPoB56SAEdhvxWa9P593R8yAVp2H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3258) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Executes dropped EXE 1 IoCs

pid	Process
2044	tasksche.exe

Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe

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	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{98CAD950-072A-4C8C-B658-B939D5D9FC08}\WpadDecision = "0"	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{98CAD950-072A-4C8C-B658-B939D5D9FC08}\WpadNetworkName = "Network 3"	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-f1-56-4b-64-c9\WpadDecisionReason = "1"	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0168000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{98CAD950-072A-4C8C-B658-B939D5D9FC08}\WpadDecisionReason = "1"	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-f1-56-4b-64-c9\WpadDecisionTime = 30f61175ce74db01	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-f1-56-4b-64-c9\WpadDecision = "0"	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-f1-56-4b-64-c9	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{98CAD950-072A-4C8C-B658-B939D5D9FC08}\1e-f1-56-4b-64-c9	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{98CAD950-072A-4C8C-B658-B939D5D9FC08}	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{98CAD950-072A-4C8C-B658-B939D5D9FC08}\WpadDecisionTime = 30f61175ce74db01	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3052
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2044

C:\Users\Admin\AppData\Local\Temp\2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-01_42baa2aed9aa0eb415360c16643e98e8_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

2

T1046

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
9263a694928ad1180cb9391d825b22af

SHA1
44b85bc13fb342ff88a74454a3e121bd55848bcb

SHA256
7a750dfdbc5dc5525063b66c65ef94a606ecbe472b13027bcb8d60083f49af5f

SHA512
716a0c08d1de35b7ad6bbbb8fac63345dcbaea440cd0c91babb7c294969f74db34a54840a868fd9858f0c199b160247dd354215f5e38ca5ca9989cd84e93ae12

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