wannacry | 1d18c87cdc79ab31f7213ebbe9366fbc94a8d2632fda53531680b1b9eccd109d

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20220718-en
resource tags

arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
submitted
20/07/2022, 03:20

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General

Target
13f8d4f3097e98c843e9a594b7a9c128.dll
Size 5.0MB
Sample220720-dvrxlsbcf4
SHA256 1d18c87cdc79ab31f7213ebbe9366fbc94a8d2632fda53531680b1b9eccd109d
MD5 13f8d4f3097e98c843e9a594b7a9c128
SHA1 a808002fdd82d43a7c828ba501880a13e739c512
SHA512 782362654e5239fbfd927c415831049024839480e9e2a1f22e589d60a7b686a19be81e1875a6538d6d22886c53752db8abd13c549a09a3b7728eb8ade76eba6d
MD5 SHA1 SHA512

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (1278) 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 2 IoCs

pid	Process
1492	mssecsvc.exe
1088	mssecsvc.exe

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	mssecsvc.exe

Drops file in Windows directory 2 IoCs

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

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{79924454-FFA8-40FA-B2E0-E50B81BFF94E}\WpadDecision = "0"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{79924454-FFA8-40FA-B2E0-E50B81BFF94E}\WpadDecisionReason = "1"	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\UNCAsIntranet = "0"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{79924454-FFA8-40FA-B2E0-E50B81BFF94E}\WpadDecisionTime = 602ed866f89bd801	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{79924454-FFA8-40FA-B2E0-E50B81BFF94E}\WpadNetworkName = "Network 3"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-63-50-77-49-84	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-63-50-77-49-84\WpadDecisionReason = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-63-50-77-49-84\WpadDecision = "0"	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 (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\AutoDetect = "1"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00c1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{79924454-FFA8-40FA-B2E0-E50B81BFF94E}	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{79924454-FFA8-40FA-B2E0-E50B81BFF94E}\12-63-50-77-49-84	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-63-50-77-49-84\WpadDecisionTime = 602ed866f89bd801	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	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
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	mssecsvc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1492	mssecsvc.exe
1088	mssecsvc.exe

Suspicious behavior: MapViewOfSection 44 IoCs

pid	Process
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1492	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe
1088	mssecsvc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1492	mssecsvc.exe
Token: SeDebugPrivilege	1088	mssecsvc.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1620 wrote to memory of 892	1620	rundll32.exe	27
PID 1620 wrote to memory of 892	1620	rundll32.exe	27
PID 1620 wrote to memory of 892	1620	rundll32.exe	27
PID 1620 wrote to memory of 892	1620	rundll32.exe	27
PID 1620 wrote to memory of 892	1620	rundll32.exe	27
PID 1620 wrote to memory of 892	1620	rundll32.exe	27
PID 1620 wrote to memory of 892	1620	rundll32.exe	27
PID 892 wrote to memory of 1492	892	rundll32.exe	28
PID 892 wrote to memory of 1492	892	rundll32.exe	28
PID 892 wrote to memory of 1492	892	rundll32.exe	28
PID 892 wrote to memory of 1492	892	rundll32.exe	28
PID 1492 wrote to memory of 368	1492	mssecsvc.exe	5
PID 1492 wrote to memory of 368	1492	mssecsvc.exe	5
PID 1492 wrote to memory of 368	1492	mssecsvc.exe	5
PID 1492 wrote to memory of 368	1492	mssecsvc.exe	5
PID 1492 wrote to memory of 368	1492	mssecsvc.exe	5
PID 1492 wrote to memory of 368	1492	mssecsvc.exe	5
PID 1492 wrote to memory of 368	1492	mssecsvc.exe	5
PID 1492 wrote to memory of 384	1492	mssecsvc.exe	4
PID 1492 wrote to memory of 384	1492	mssecsvc.exe	4
PID 1492 wrote to memory of 384	1492	mssecsvc.exe	4
PID 1492 wrote to memory of 384	1492	mssecsvc.exe	4
PID 1492 wrote to memory of 384	1492	mssecsvc.exe	4
PID 1492 wrote to memory of 384	1492	mssecsvc.exe	4
PID 1492 wrote to memory of 384	1492	mssecsvc.exe	4
PID 1492 wrote to memory of 420	1492	mssecsvc.exe	3
PID 1492 wrote to memory of 420	1492	mssecsvc.exe	3
PID 1492 wrote to memory of 420	1492	mssecsvc.exe	3
PID 1492 wrote to memory of 420	1492	mssecsvc.exe	3
PID 1492 wrote to memory of 420	1492	mssecsvc.exe	3
PID 1492 wrote to memory of 420	1492	mssecsvc.exe	3
PID 1492 wrote to memory of 420	1492	mssecsvc.exe	3
PID 1492 wrote to memory of 464	1492	mssecsvc.exe	2
PID 1492 wrote to memory of 464	1492	mssecsvc.exe	2
PID 1492 wrote to memory of 464	1492	mssecsvc.exe	2
PID 1492 wrote to memory of 464	1492	mssecsvc.exe	2
PID 1492 wrote to memory of 464	1492	mssecsvc.exe	2
PID 1492 wrote to memory of 464	1492	mssecsvc.exe	2
PID 1492 wrote to memory of 464	1492	mssecsvc.exe	2
PID 1492 wrote to memory of 480	1492	mssecsvc.exe	1
PID 1492 wrote to memory of 480	1492	mssecsvc.exe	1
PID 1492 wrote to memory of 480	1492	mssecsvc.exe	1
PID 1492 wrote to memory of 480	1492	mssecsvc.exe	1
PID 1492 wrote to memory of 480	1492	mssecsvc.exe	1
PID 1492 wrote to memory of 480	1492	mssecsvc.exe	1
PID 1492 wrote to memory of 480	1492	mssecsvc.exe	1
PID 1492 wrote to memory of 488	1492	mssecsvc.exe	6
PID 1492 wrote to memory of 488	1492	mssecsvc.exe	6
PID 1492 wrote to memory of 488	1492	mssecsvc.exe	6
PID 1492 wrote to memory of 488	1492	mssecsvc.exe	6
PID 1492 wrote to memory of 488	1492	mssecsvc.exe	6
PID 1492 wrote to memory of 488	1492	mssecsvc.exe	6
PID 1492 wrote to memory of 488	1492	mssecsvc.exe	6
PID 1492 wrote to memory of 592	1492	mssecsvc.exe	23
PID 1492 wrote to memory of 592	1492	mssecsvc.exe	23
PID 1492 wrote to memory of 592	1492	mssecsvc.exe	23
PID 1492 wrote to memory of 592	1492	mssecsvc.exe	23
PID 1492 wrote to memory of 592	1492	mssecsvc.exe	23
PID 1492 wrote to memory of 592	1492	mssecsvc.exe	23
PID 1492 wrote to memory of 592	1492	mssecsvc.exe	23
PID 1492 wrote to memory of 668	1492	mssecsvc.exe	22
PID 1492 wrote to memory of 668	1492	mssecsvc.exe	22
PID 1492 wrote to memory of 668	1492	mssecsvc.exe	22
PID 1492 wrote to memory of 668	1492	mssecsvc.exe	22

C:\Windows\system32\lsass.exe
C:\Windows\system32\lsass.exe
1⤵
PID:480

C:\Windows\system32\services.exe
C:\Windows\system32\services.exe
1⤵
PID:464
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalService
  2⤵
  PID:844
- C:\Windows\system32\sppsvc.exe
  C:\Windows\system32\sppsvc.exe
  2⤵
  PID:1136
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
  2⤵
  PID:1796
- C:\Windows\system32\taskhost.exe
  "taskhost.exe"
  2⤵
  PID:1212
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
  2⤵
  PID:1032
- C:\Windows\System32\spoolsv.exe
  C:\Windows\System32\spoolsv.exe
  2⤵
  PID:1020
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k NetworkService
  2⤵
  PID:240
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k netsvcs
  2⤵
  PID:868
- C:\Windows\System32\svchost.exe
  C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
  2⤵
  PID:796
- C:\Windows\System32\svchost.exe
  C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
  2⤵
  PID:728
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k RPCSS
  2⤵
  PID:668
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k DcomLaunch
  2⤵
  PID:592
- - C:\Windows\system32\DllHost.exe
    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
    3⤵
    PID:1488
- C:\WINDOWS\mssecsvc.exe
  C:\WINDOWS\mssecsvc.exe -m security
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  PID:1088

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:420

C:\Windows\system32\csrss.exe
%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
1⤵
PID:384

C:\Windows\system32\wininit.exe
wininit.exe
1⤵
PID:368
- C:\Windows\system32\lsm.exe
  C:\Windows\system32\lsm.exe
  2⤵
  PID:488

\\?\C:\Windows\system32\wbem\WMIADAP.EXE
wmiadap.exe /F /T /R
1⤵
PID:2012

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1396
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\13f8d4f3097e98c843e9a594b7a9c128.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1620
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\13f8d4f3097e98c843e9a594b7a9c128.dll,#1
    3⤵
    - Drops file in Windows directory
    - Suspicious use of WriteProcessMemory
    PID:892
  - - C:\WINDOWS\mssecsvc.exe
      C:\WINDOWS\mssecsvc.exe
      4⤵
      Executes dropped EXE
      Drops file in Windows directory
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:1492

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1332

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Scanning

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

MSSECSVC.EXE

Path C:\WINDOWS\MSSECSVC.EXE
Size 3.6MB
SHA256 ead5d430902741b5d519e689bea4ed4f1660a441ef23a04440605fc68ca90a08
MD5 224bb7f0c81b91aea866d27586524bfb
SHA1 a2c3cd6ba0bb7ca69c7df4c43cc7d5d0ecca5273
SHA512 d292d621ec30e1ddf72c2aaab2637f3a9a0ed5a611442c0407017d4944f0b4c404bc210d2d290fb8b71df8530f9e96771621636f38d8a0308f157713d3287ec4
SSDEEP 98304:5DqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2H:5DqPe1Cxcxk3ZAEUadzR8yc4H
MD5 SHA1 SHA512 SSDEEP

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mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 ead5d430902741b5d519e689bea4ed4f1660a441ef23a04440605fc68ca90a08
MD5 224bb7f0c81b91aea866d27586524bfb
SHA1 a2c3cd6ba0bb7ca69c7df4c43cc7d5d0ecca5273
SHA512 d292d621ec30e1ddf72c2aaab2637f3a9a0ed5a611442c0407017d4944f0b4c404bc210d2d290fb8b71df8530f9e96771621636f38d8a0308f157713d3287ec4
SSDEEP 98304:5DqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2H:5DqPe1Cxcxk3ZAEUadzR8yc4H
MD5 SHA1 SHA512 SSDEEP

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mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 ead5d430902741b5d519e689bea4ed4f1660a441ef23a04440605fc68ca90a08
MD5 224bb7f0c81b91aea866d27586524bfb
SHA1 a2c3cd6ba0bb7ca69c7df4c43cc7d5d0ecca5273
SHA512 d292d621ec30e1ddf72c2aaab2637f3a9a0ed5a611442c0407017d4944f0b4c404bc210d2d290fb8b71df8530f9e96771621636f38d8a0308f157713d3287ec4
SSDEEP 98304:5DqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2H:5DqPe1Cxcxk3ZAEUadzR8yc4H
MD5 SHA1 SHA512 SSDEEP

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memory/892-55-0x0000000075A61000-0x0000000075A63000-memory.dmp

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memory/1088-61-0x0000000000400000-0x0000000000A70000-memory.dmp

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memory/1088-66-0x0000000000400000-0x0000000000A70000-memory.dmp

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memory/1492-62-0x0000000000400000-0x0000000000A70000-memory.dmp

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memory/1492-64-0x0000000000400000-0x0000000000A70000-memory.dmp

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memory/1492-65-0x000000007EF80000-0x000000007EF8A000-memory.dmp

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