wannacry | e15b7a1867401464112b2431589ac74ca9d9a3db7fdeb468a7e11057a86e7918

General

Target

2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Size

5.0MB
MD5

6b5603b64f038ea19fe838264f5b6eb8
SHA1

b76d3b934e048f25fbecf3d8ed7099004e7589c6
SHA256

e15b7a1867401464112b2431589ac74ca9d9a3db7fdeb468a7e11057a86e7918
SHA512

355d2180733664780c2459fa690ea6257dca4a195fc35a449e6735e302cd04775186fc6e0af9b77c3da6b42eb62f96a93dedb6a0d098acb53432f8b881fcf61e
SSDEEP

49152:XnAQA0y4YnEEeZezw2uvgyd7+KnT2becwT6DGMIBHuLZyLUcRhRt/IbmwW6LC:XDA0yKi9ywKSbevWSdOLZSPebdWOC

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 (3159) 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
2856	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	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_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	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-73-65-ca-4e-27\WpadDecisionReason = "1"	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-73-65-ca-4e-27\WpadDecisionTime = 10a24ef2403fdb01	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00a4000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42EA5CAC-5ED3-4DA0-9316-09F90C25D5F7}\aa-73-65-ca-4e-27	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-73-65-ca-4e-27\WpadDecision = "0"	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42EA5CAC-5ED3-4DA0-9316-09F90C25D5F7}	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42EA5CAC-5ED3-4DA0-9316-09F90C25D5F7}\WpadDecisionTime = 10a24ef2403fdb01	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42EA5CAC-5ED3-4DA0-9316-09F90C25D5F7}\WpadDecision = "0"	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42EA5CAC-5ED3-4DA0-9316-09F90C25D5F7}\WpadNetworkName = "Network 3"	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-73-65-ca-4e-27	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42EA5CAC-5ED3-4DA0-9316-09F90C25D5F7}\WpadDecisionReason = "1"	2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2892
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2856

C:\Users\Admin\AppData\Local\Temp\2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-25_6b5603b64f038ea19fe838264f5b6eb8_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2840

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
e81d366634fe11f8b8a3ff71f4901009

SHA1
0a8c76ba24c779d89f3fa41333cd888077869061

SHA256
83aa98e525e348eae32c7901d349c8258a4704e4b32699ec6d545a781551d6f4

SHA512
938b951f67413b3c595f45d778e5a94c95c833aba769a2fb4b31fcdc5f35bd9aa1d7068bd5338555ca10695911c23e0c79f0e6c367184cea70b59f10be5d81e9

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