wannacry | f3c704016a36ada2ded03ba9e37e253846ba473bc27421ae8d65b0f118176bfb

General

Target

e2af16636d4c528ef5a01e92dc1ca424.dll
Size

5.0MB
MD5

e2af16636d4c528ef5a01e92dc1ca424
SHA1

3bfeae70695a880834d2e820f38ea77fa645a80a
SHA256

f3c704016a36ada2ded03ba9e37e253846ba473bc27421ae8d65b0f118176bfb
SHA512

23a74d5567839745af7c0cf0032c7097353409bfd75bd4de4a25d06c14fcad86e8409c53071e369c9d470afeb742c773a691d1ddbd517cb0b2d11f851e687db9

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (1132) 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

2012 mssecsvc.exe
980 mssecsvc.exe
1640 tasksche.exe

pid	process
2012	mssecsvc.exe
980	mssecsvc.exe
1640	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:

rundll32.exemssecsvc.exe

description ioc process

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

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

Modifies data under HKEY_USERS 24 IoCs

Processes:

mssecsvc.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42F4AA43-5DAA-4852-8984-E8353ECD8AE0}\WpadDecisionTime = a022aea9d39bd801	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2e-26-67-67-fb-e5	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42F4AA43-5DAA-4852-8984-E8353ECD8AE0}\2e-26-67-67-fb-e5	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2e-26-67-67-fb-e5\WpadDecisionTime = a022aea9d39bd801	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "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
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00f1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2e-26-67-67-fb-e5\WpadDecision = "0"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42F4AA43-5DAA-4852-8984-E8353ECD8AE0}\WpadDecisionReason = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42F4AA43-5DAA-4852-8984-E8353ECD8AE0}\WpadDecision = "0"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	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\{42F4AA43-5DAA-4852-8984-E8353ECD8AE0}	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42F4AA43-5DAA-4852-8984-E8353ECD8AE0}\WpadNetworkName = "Network 3"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2e-26-67-67-fb-e5\WpadDecisionReason = "1"	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\Connections	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	mssecsvc.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1812 wrote to memory of 1984	1812	rundll32.exe	rundll32.exe
PID 1812 wrote to memory of 1984	1812	rundll32.exe	rundll32.exe
PID 1812 wrote to memory of 1984	1812	rundll32.exe	rundll32.exe
PID 1812 wrote to memory of 1984	1812	rundll32.exe	rundll32.exe
PID 1812 wrote to memory of 1984	1812	rundll32.exe	rundll32.exe
PID 1812 wrote to memory of 1984	1812	rundll32.exe	rundll32.exe
PID 1812 wrote to memory of 1984	1812	rundll32.exe	rundll32.exe
PID 1984 wrote to memory of 2012	1984	rundll32.exe	mssecsvc.exe
PID 1984 wrote to memory of 2012	1984	rundll32.exe	mssecsvc.exe
PID 1984 wrote to memory of 2012	1984	rundll32.exe	mssecsvc.exe
PID 1984 wrote to memory of 2012	1984	rundll32.exe	mssecsvc.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e2af16636d4c528ef5a01e92dc1ca424.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1812

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e2af16636d4c528ef5a01e92dc1ca424.dll,#1
2⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1984

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe
3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:2012

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
4⤵
- Executes dropped EXE
PID:1640

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:980

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
fa3e71fea502ae31a70b42f7dfe03925

SHA1
b4793e64be76ec9696c5a6b4dfae760ca56eec4c

SHA256
f3076a1b875dd97602eefc2f1b4f7b1b3ffad50d5f1e65dbb1911892d7dbbc37

SHA512
21e5920fcce63baf74df0c671ac1c837a254aa1f9b584dd72b62504b38a06e7aafb227f05eb203706589e0b32daf25cf8363c554c1d4414000ec1ab06fa878bb

Download Submit
C:\Windows\mssecsvc.exe
Filesize
3.6MB

MD5
fa3e71fea502ae31a70b42f7dfe03925

SHA1
b4793e64be76ec9696c5a6b4dfae760ca56eec4c

SHA256
f3076a1b875dd97602eefc2f1b4f7b1b3ffad50d5f1e65dbb1911892d7dbbc37

SHA512
21e5920fcce63baf74df0c671ac1c837a254aa1f9b584dd72b62504b38a06e7aafb227f05eb203706589e0b32daf25cf8363c554c1d4414000ec1ab06fa878bb

Download Submit
C:\Windows\mssecsvc.exe
Filesize
3.6MB

MD5
fa3e71fea502ae31a70b42f7dfe03925

SHA1
b4793e64be76ec9696c5a6b4dfae760ca56eec4c

SHA256
f3076a1b875dd97602eefc2f1b4f7b1b3ffad50d5f1e65dbb1911892d7dbbc37

SHA512
21e5920fcce63baf74df0c671ac1c837a254aa1f9b584dd72b62504b38a06e7aafb227f05eb203706589e0b32daf25cf8363c554c1d4414000ec1ab06fa878bb

Download Submit
C:\Windows\tasksche.exe
Filesize
3.4MB

MD5
c117e1fc19224659a86d3c0b7fb2eab3

SHA1
e9f7572de561301a67a4097e531fbee3f978db0b

SHA256
3a24c2c2ee15a3bd1b58101baf09e00591fadb827a951c0ed3287de26216f0b0

SHA512
f6b8dcb0f472a1f36eaa72ac91a2ef50000c5f0b49e3250df26bd41be33cd06e7ebff765c034a760319baeca2f22991afd7dc701377134dd38fd4da7feb9bb99

Download Submit
memory/1984-54-0x0000000000000000-mapping.dmp

Download
memory/1984-55-0x0000000076191000-0x0000000076193000-memory.dmp

Filesize
8KB

Download
memory/2012-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads