wannacry | 05f9915140770c16efeee37634a2600a5d7bebc7e2ed3dc7d89abaded0113508

General

Target

2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Size

5.0MB
MD5

c04f3f1b47cd00c335b9f1d248ffdf6b
SHA1

dee3fa16f267b22ebcdc227c46221b0a236cc3f6
SHA256

05f9915140770c16efeee37634a2600a5d7bebc7e2ed3dc7d89abaded0113508
SHA512

60e36aa6b1e37a8b6bef03da4782a20c191e74c8903ff656f76094895b13562adf29829c5019707cef8a07cb6c8c8136b6b9e73999f1f54bb8119ddbdcd6eded
SSDEEP

12288:GebLgPlu+QhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+D5KS6F0wK7rf:XbLgddQhfdmMSirYbcMNgef07Fq7r

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3211) 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
2784	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	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_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	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-3b-ff-8f-95-2c\WpadDecisionReason = "1"	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53BF6718-92A5-4F1A-8083-46CA22CF3C00}\WpadDecision = "0"	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-3b-ff-8f-95-2c	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0121000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53BF6718-92A5-4F1A-8083-46CA22CF3C00}	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53BF6718-92A5-4F1A-8083-46CA22CF3C00}\4a-3b-ff-8f-95-2c	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-3b-ff-8f-95-2c\WpadDecision = "0"	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53BF6718-92A5-4F1A-8083-46CA22CF3C00}\WpadDecisionTime = 10f7f5bdd901db01	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53BF6718-92A5-4F1A-8083-46CA22CF3C00}\WpadNetworkName = "Network 3"	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53BF6718-92A5-4F1A-8083-46CA22CF3C00}\WpadDecisionReason = "1"	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-3b-ff-8f-95-2c\WpadDecisionTime = 10f7f5bdd901db01	2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2848
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2784

C:\Users\Admin\AppData\Local\Temp\2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-08_c04f3f1b47cd00c335b9f1d248ffdf6b_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2752

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
236768f17199bf9eae735734dae8c122

SHA1
f5f45f035dab57c60025920bf37033c555bdf8f8

SHA256
d27e9d6c88c89e82b37ef755429647acdd6f3d8556cd0d5007abf5cd1e7675fc

SHA512
010a4560572133b62917f5c37df3ce03e0320f0ade7604e6944eb65abd9ec5726d82400f90b0f14cc75ffd18bf880f0c1fb92d3e0dee912ac061b81a22778cb1

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Analysis

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