wannacry | 268c5e3f3050d96c2fc80f38e7a81846bd799ba949d69f35bd2151e509189505

General

Target

79f1d601ece826493e4e2b409980f6ac.dll
Size

5.0MB
MD5

79f1d601ece826493e4e2b409980f6ac
SHA1

5132e83d8bb0b0998918dad8f48c45d37b001877
SHA256

268c5e3f3050d96c2fc80f38e7a81846bd799ba949d69f35bd2151e509189505
SHA512

fb55c19f5b4afe04781dfcdf95ec17373be5040e1cdb1b8d9f63214ebb5ecacbfbf403cf15ec2b509fa5086de5d4ff8ab1b84c2fd9f2c4bccadca8fb3096d3af

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (1198) 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

1364 mssecsvc.exe
2008 mssecsvc.exe
1188 tasksche.exe

pid	process
1364	mssecsvc.exe
2008	mssecsvc.exe
1188	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\Wpad	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2E9134DB-3C23-4031-8933-B00BB05E13E0}\WpadDecisionReason = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2E9134DB-3C23-4031-8933-B00BB05E13E0}\WpadDecision = "0"	mssecsvc.exe
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\ProxyEnable = "0"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	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\Wpad\{2E9134DB-3C23-4031-8933-B00BB05E13E0}\WpadDecisionTime = e0fa30c4af9bd801	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2E9134DB-3C23-4031-8933-B00BB05E13E0}\06-75-a7-dd-b9-dc	mssecsvc.exe
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\Wpad\06-75-a7-dd-b9-dc\WpadDecisionReason = "1"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-75-a7-dd-b9-dc\WpadDecisionTime = e0fa30c4af9bd801	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\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	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\Content\CachePrefix	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00cd000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2E9134DB-3C23-4031-8933-B00BB05E13E0}	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2E9134DB-3C23-4031-8933-B00BB05E13E0}\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\Wpad\06-75-a7-dd-b9-dc\WpadDecision = "0"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-75-a7-dd-b9-dc	mssecsvc.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1800 wrote to memory of 1224	1800	rundll32.exe	rundll32.exe
PID 1800 wrote to memory of 1224	1800	rundll32.exe	rundll32.exe
PID 1800 wrote to memory of 1224	1800	rundll32.exe	rundll32.exe
PID 1800 wrote to memory of 1224	1800	rundll32.exe	rundll32.exe
PID 1800 wrote to memory of 1224	1800	rundll32.exe	rundll32.exe
PID 1800 wrote to memory of 1224	1800	rundll32.exe	rundll32.exe
PID 1800 wrote to memory of 1224	1800	rundll32.exe	rundll32.exe
PID 1224 wrote to memory of 1364	1224	rundll32.exe	mssecsvc.exe
PID 1224 wrote to memory of 1364	1224	rundll32.exe	mssecsvc.exe
PID 1224 wrote to memory of 1364	1224	rundll32.exe	mssecsvc.exe
PID 1224 wrote to memory of 1364	1224	rundll32.exe	mssecsvc.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\79f1d601ece826493e4e2b409980f6ac.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1800

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\79f1d601ece826493e4e2b409980f6ac.dll,#1
2⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1224

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe
3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:1364

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
4⤵
- Executes dropped EXE
PID:1188

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 Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Scanning

1

T1046

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\WINDOWS\mssecsvc.exe
Filesize
3.6MB

MD5
e362cb734da0b90095581f7a9f546056

SHA1
6413c71f105ceeb525a21b3ad4216181bb52907d

SHA256
ac4079ec566390347dfda8a14a0c7424a732538d4561efeff05a9af2181e920a

SHA512
6d0b3b33b33a95a85e80bcb6275e38fce58ecf69c1c6d694dd3be4eef806f15da9d462bd173f58c13623a776ffbac79a80cbb16f913a09e49899fbcb332e7488

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

MD5
e362cb734da0b90095581f7a9f546056

SHA1
6413c71f105ceeb525a21b3ad4216181bb52907d

SHA256
ac4079ec566390347dfda8a14a0c7424a732538d4561efeff05a9af2181e920a

SHA512
6d0b3b33b33a95a85e80bcb6275e38fce58ecf69c1c6d694dd3be4eef806f15da9d462bd173f58c13623a776ffbac79a80cbb16f913a09e49899fbcb332e7488

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

MD5
e362cb734da0b90095581f7a9f546056

SHA1
6413c71f105ceeb525a21b3ad4216181bb52907d

SHA256
ac4079ec566390347dfda8a14a0c7424a732538d4561efeff05a9af2181e920a

SHA512
6d0b3b33b33a95a85e80bcb6275e38fce58ecf69c1c6d694dd3be4eef806f15da9d462bd173f58c13623a776ffbac79a80cbb16f913a09e49899fbcb332e7488

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

MD5
6a69a62b5dffae6c9bdb581a9d2db76e

SHA1
540ef36e63190662eeffd2f04286aa3c4b02922d

SHA256
1ab54ced90bdb51ae642bbf882c92fae6a761119d40771acdfa01c644cb2722d

SHA512
6638db680427c47abffca484aff19516716f5e3ac59eb6b562d086987b51bf7c053daa22c87b40187a0a98323b917cd7abb882279e37f7e47d9a427632f4d49c

Download Submit
memory/1224-54-0x0000000000000000-mapping.dmp

Download
memory/1224-55-0x0000000076291000-0x0000000076293000-memory.dmp

Filesize
8KB

Download
memory/1364-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads