wannacry | 971f763939910cc04c170936ad2467e592678a301997aa80adde2e94040afe28

General

Target

2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Size

3.6MB
MD5

111499d873815c3d6face3a8480f286d
SHA1

6a05bfc9806784884ca6c260bbdb5785fca2762d
SHA256

971f763939910cc04c170936ad2467e592678a301997aa80adde2e94040afe28
SHA512

e7ba9fa467498e8db5df1c03f315bbbfbea1429268778ac792346bd5e050bfe1db310ccab887a78d162831b885c3a1c3e67a5bd16b300a9aaacd1edd41cf83fd
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo69I:XDqPoBhz1aRxcSUDk369I

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 (3295) 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
2724	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	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-26_111499d873815c3d6face3a8480f286d_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	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-26_111499d873815c3d6face3a8480f286d_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	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0980013B-8D0E-44AE-94C5-023B40F164C2}\WpadNetworkName = "Network 3"	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c6-4e-36-e0-b9-b7\WpadDecisionReason = "1"	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c6-4e-36-e0-b9-b7\WpadDecision = "0"	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0980013B-8D0E-44AE-94C5-023B40F164C2}\WpadDecisionTime = b08a56550640db01	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c6-4e-36-e0-b9-b7	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0980013B-8D0E-44AE-94C5-023B40F164C2}\WpadDecisionReason = "1"	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00cd000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0980013B-8D0E-44AE-94C5-023B40F164C2}	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0980013B-8D0E-44AE-94C5-023B40F164C2}\WpadDecision = "0"	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0980013B-8D0E-44AE-94C5-023B40F164C2}\c6-4e-36-e0-b9-b7	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c6-4e-36-e0-b9-b7\WpadDecisionTime = b08a56550640db01	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2560
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2724

C:\Users\Admin\AppData\Local\Temp\2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-26_111499d873815c3d6face3a8480f286d_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2552

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
b71a10d0e3f3255cdce7903784d380a7

SHA1
46ac26d48c204458cca61147fbfb356b8b468a8e

SHA256
571305f8160f8b4bf8063845763578794f215e3c525b198881d0e38e2f70e89c

SHA512
23204156ce4afd6b5ec24a906c7c9ed88c23a1483b089f7d0151be731105079f84d22a46a5912359d096afa8e9dc90a778d50025ba83b8714ad91f0ffaaa8017

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Analysis

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