wannacry | 3950179ee45f03af2d6c1130d0db04ad3441c2befc7fb5a28460d5fc45f1beb8

General

Target

3950179ee45f03af2d6c1130d0db04ad3441c2befc7fb5a28460d5fc45f1beb8.dll
Size

5.0MB
MD5

fd7c451d538bde5e7f4c44f9adcd9f20
SHA1

52bca09f35d9c23bd96d5bbad1fd5e06a245190f
SHA256

3950179ee45f03af2d6c1130d0db04ad3441c2befc7fb5a28460d5fc45f1beb8
SHA512

fd2926b03f3680d2f9f05ed209c617f7e00069ee451e4bc2c1233dcf6d62f4f6bc414d3cd390fa9d66e814e1ab4364fa20ae0a58a4d496df7c07b250b43bcb0f

Score

10^/10

wannacry discovery ransomware suricata worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
suricata: ET MALWARE Known Sinkhole Response Kryptos Logic
suricata: ET MALWARE Known Sinkhole Response Kryptos Logic
suricata
suricata: ET MALWARE W32/WannaCry.Ransomware Killswitch Domain HTTP Request 1
suricata: ET MALWARE W32/WannaCry.Ransomware Killswitch Domain HTTP Request 1
suricata
Contacts a large (1205) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Scanning
T1046
Executes dropped EXE 3 IoCs

Processes:

mssecsvc.exemssecsvc.exetasksche.exe

pid process

1928 mssecsvc.exe
2008 mssecsvc.exe
268 tasksche.exe

pid	process
1928	mssecsvc.exe
2008	mssecsvc.exe
268	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

mssecsvc.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	mssecsvc.exe

Drops file in Windows directory 2 IoCs

Processes:

mssecsvc.exerundll32.exe

description ioc process

File created C:\WINDOWS\tasksche.exe mssecsvc.exe
File created C:\WINDOWS\mssecsvc.exe rundll32.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	mssecsvc.exe
File created	C:\WINDOWS\mssecsvc.exe	rundll32.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

mssecsvc.exe

description	ioc	process
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-43-d0-89-2e-02\WpadDecisionTime = 703a8ee3a888d801	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0071000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-43-d0-89-2e-02\WpadDecisionReason = "1"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F753249F-2CBA-47F1-A69E-4C4ABAC776AB}	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F753249F-2CBA-47F1-A69E-4C4ABAC776AB}\WpadNetworkName = "Network 3"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-43-d0-89-2e-02	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F753249F-2CBA-47F1-A69E-4C4ABAC776AB}\4a-43-d0-89-2e-02	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-43-d0-89-2e-02\WpadDecision = "0"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F753249F-2CBA-47F1-A69E-4C4ABAC776AB}\WpadDecisionReason = "1"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F753249F-2CBA-47F1-A69E-4C4ABAC776AB}\WpadDecisionTime = 703a8ee3a888d801	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F753249F-2CBA-47F1-A69E-4C4ABAC776AB}\WpadDecision = "0"	mssecsvc.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1980 wrote to memory of 940	1980	rundll32.exe	rundll32.exe
PID 1980 wrote to memory of 940	1980	rundll32.exe	rundll32.exe
PID 1980 wrote to memory of 940	1980	rundll32.exe	rundll32.exe
PID 1980 wrote to memory of 940	1980	rundll32.exe	rundll32.exe
PID 1980 wrote to memory of 940	1980	rundll32.exe	rundll32.exe
PID 1980 wrote to memory of 940	1980	rundll32.exe	rundll32.exe
PID 1980 wrote to memory of 940	1980	rundll32.exe	rundll32.exe
PID 940 wrote to memory of 1928	940	rundll32.exe	mssecsvc.exe
PID 940 wrote to memory of 1928	940	rundll32.exe	mssecsvc.exe
PID 940 wrote to memory of 1928	940	rundll32.exe	mssecsvc.exe
PID 940 wrote to memory of 1928	940	rundll32.exe	mssecsvc.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3950179ee45f03af2d6c1130d0db04ad3441c2befc7fb5a28460d5fc45f1beb8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3950179ee45f03af2d6c1130d0db04ad3441c2befc7fb5a28460d5fc45f1beb8.dll,#1
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:940
- - C:\WINDOWS\mssecsvc.exe
    C:\WINDOWS\mssecsvc.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    PID:1928
  - - C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      4⤵
      Executes dropped EXE
      PID:268

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2008

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Scanning

1

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\WINDOWS\mssecsvc.exe

Filesize
3.6MB

MD5
323b926c93cc6130bbb006a7cfaba379

SHA1
d6af0736828aa426508a94d60a42dd5001a0c28b

SHA256
63406e40a2ba679eca83b3a127ff2af9a7a02402574a82801a4f739fc901e6cf

SHA512
a96e3d82146f4270e46077428933f15b84db1630eb8a44e42754860b13b30297e2fdaaca0a4934294da3a8fcd99cac0c6f36cb4816a0fc7c45c7d0b01b9a4b25

Download Submit
C:\Windows\mssecsvc.exe

Filesize
3.6MB

MD5
323b926c93cc6130bbb006a7cfaba379

SHA1
d6af0736828aa426508a94d60a42dd5001a0c28b

SHA256
63406e40a2ba679eca83b3a127ff2af9a7a02402574a82801a4f739fc901e6cf

SHA512
a96e3d82146f4270e46077428933f15b84db1630eb8a44e42754860b13b30297e2fdaaca0a4934294da3a8fcd99cac0c6f36cb4816a0fc7c45c7d0b01b9a4b25

Download Submit
C:\Windows\mssecsvc.exe

Filesize
3.6MB

MD5
323b926c93cc6130bbb006a7cfaba379

SHA1
d6af0736828aa426508a94d60a42dd5001a0c28b

SHA256
63406e40a2ba679eca83b3a127ff2af9a7a02402574a82801a4f739fc901e6cf

SHA512
a96e3d82146f4270e46077428933f15b84db1630eb8a44e42754860b13b30297e2fdaaca0a4934294da3a8fcd99cac0c6f36cb4816a0fc7c45c7d0b01b9a4b25

Download Submit
C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
df02556b80331232a43186bc3fa582a3

SHA1
44f8c4fee2c22e8728cc65871f168d7365c01368

SHA256
48361f23788cc27891f05c2d45b8a0cd4dfe8e8a45f1654fdb2a913609a6a64d

SHA512
412b30722673cb07fc6497a176e4d25ab166c6462996f7f2905622617c080339a6f027db19fd0bab0e778ee72b64ef53c6f0e158b6a49d1abd7bf36916d1fe81

Download Submit
memory/940-54-0x0000000000000000-mapping.dmp

Download
memory/940-55-0x0000000076C01000-0x0000000076C03000-memory.dmp

Filesize
8KB

Download
memory/1928-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads