wannacry | e4311815a97b4ff5723f66ff2d7d3f5b95bc4fe68fa137e4ed84296b0f723d39

General

Target

2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Size

5.0MB
MD5

ccbffdd5ae4a730618d5c86b2a3b0f1d
SHA1

f3e253e91d02718d0ea9987120c46d08e3857f8f
SHA256

e4311815a97b4ff5723f66ff2d7d3f5b95bc4fe68fa137e4ed84296b0f723d39
SHA512

e1c8198c84f00b9d6fb4ea5e3df059290b36ac9ebec2c51a36dcd8fa0dffdb910fa659b66e7af2286b396e17be050556861c24c54f94765bbb57768b5f765978
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdh:XDqPoBhz1aRxcSUDk36SAEdh

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 (3298) 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
1264	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	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_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	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4A506038-0EFD-4C38-8C5F-AF5F359B44E3}\WpadDecisionReason = "1"	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-d3-6d-ba-98-b8\WpadDecision = "0"	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4A506038-0EFD-4C38-8C5F-AF5F359B44E3}\WpadDecision = "0"	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4A506038-0EFD-4C38-8C5F-AF5F359B44E3}\WpadNetworkName = "Network 3"	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-d3-6d-ba-98-b8	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4A506038-0EFD-4C38-8C5F-AF5F359B44E3}\da-d3-6d-ba-98-b8	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-d3-6d-ba-98-b8\WpadDecisionTime = 7054f517e94edb01	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4A506038-0EFD-4C38-8C5F-AF5F359B44E3}	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0103000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4A506038-0EFD-4C38-8C5F-AF5F359B44E3}\WpadDecisionTime = 7054f517e94edb01	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-d3-6d-ba-98-b8\WpadDecisionReason = "1"	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2112
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1264

C:\Users\Admin\AppData\Local\Temp\2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-15_ccbffdd5ae4a730618d5c86b2a3b0f1d_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2388

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
14ab19d2ec57070f9723e547986fe1b1

SHA1
5bca79ccbc40678352028a79867dbb222615079a

SHA256
089f1d798fd3ee95581c997fe6eca975076c5a61f97d9cce294320647caf2655

SHA512
d8b9762a9957e2fdad0a37900d49086aca6dcd42160c508bea60318b393f250623ae2901ec1bb018fc64d84295cbc76ce7ed9ba13b8d43967634ae9191117e4a

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Analysis

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