wannacry | 51d5805abb1d7fb68d037399193a5f1b019d23e455fe4a5b82d245a020b5b05b

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16/01/2025, 02:42

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General

Target

51d5805abb1d7fb68d037399193a5f1b019d23e455fe4a5b82d245a020b5b05b.dll
Size

5.0MB
MD5

78bd8b9c610315d7247e2076bbd9458c
SHA1

a8029cfe179dfc15c9a52ecd4ad491403dc1c1ae
SHA256

51d5805abb1d7fb68d037399193a5f1b019d23e455fe4a5b82d245a020b5b05b
SHA512

b6eabd7e04cd4d70edbd2f2e1b44f14fc27943b405334da0784bf2442ffcb4669de6c48fa54581045196803f975d1da86e59726afc86437827a1becc1354cdbc
SSDEEP

98304:NDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2H:NDqPe1Cxcxk3ZAEUadzR8yc4H

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 (3316) 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 2 IoCs

pid	Process
2540	mssecsvc.exe
2800	mssecsvc.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	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

System Location Discovery: System Language Discovery 1 TTPs 3 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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mssecsvc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mssecsvc.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	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\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00af000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0F42193C-7F77-4460-9F9B-EEAD47D12654}	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0F42193C-7F77-4460-9F9B-EEAD47D12654}\WpadDecisionTime = b026074ac067db01	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0F42193C-7F77-4460-9F9B-EEAD47D12654}\WpadDecision = "0"	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
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0F42193C-7F77-4460-9F9B-EEAD47D12654}\66-c2-8d-8d-27-1e	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0F42193C-7F77-4460-9F9B-EEAD47D12654}\WpadNetworkName = "Network 3"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-c2-8d-8d-27-1e	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\Content\CachePrefix	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\66-c2-8d-8d-27-1e\WpadDecision = "0"	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	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0F42193C-7F77-4460-9F9B-EEAD47D12654}\WpadDecisionReason = "1"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-c2-8d-8d-27-1e\WpadDecisionTime = b026074ac067db01	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\ZoneMap\AutoDetect = "1"	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-c2-8d-8d-27-1e\WpadDecisionReason = "1"	mssecsvc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2540	mssecsvc.exe
2800	mssecsvc.exe

Suspicious behavior: MapViewOfSection 47 IoCs

pid	Process
2540	mssecsvc.exe
2540	mssecsvc.exe
2540	mssecsvc.exe
2540	mssecsvc.exe
2540	mssecsvc.exe
2540	mssecsvc.exe
2540	mssecsvc.exe
2540	mssecsvc.exe
2540	mssecsvc.exe
2540	mssecsvc.exe
2540	mssecsvc.exe
2540	mssecsvc.exe
2540	mssecsvc.exe
2540	mssecsvc.exe
2540	mssecsvc.exe
2540	mssecsvc.exe
2540	mssecsvc.exe
2540	mssecsvc.exe
2540	mssecsvc.exe
2540	mssecsvc.exe
2540	mssecsvc.exe
2540	mssecsvc.exe
2540	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe
2800	mssecsvc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2540	mssecsvc.exe
Token: SeDebugPrivilege	2800	mssecsvc.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2640 wrote to memory of 2676	2640	rundll32.exe	30
PID 2640 wrote to memory of 2676	2640	rundll32.exe	30
PID 2640 wrote to memory of 2676	2640	rundll32.exe	30
PID 2640 wrote to memory of 2676	2640	rundll32.exe	30
PID 2640 wrote to memory of 2676	2640	rundll32.exe	30
PID 2640 wrote to memory of 2676	2640	rundll32.exe	30
PID 2640 wrote to memory of 2676	2640	rundll32.exe	30
PID 2676 wrote to memory of 2540	2676	rundll32.exe	31
PID 2676 wrote to memory of 2540	2676	rundll32.exe	31
PID 2676 wrote to memory of 2540	2676	rundll32.exe	31
PID 2676 wrote to memory of 2540	2676	rundll32.exe	31
PID 2540 wrote to memory of 380	2540	mssecsvc.exe	3
PID 2540 wrote to memory of 380	2540	mssecsvc.exe	3
PID 2540 wrote to memory of 380	2540	mssecsvc.exe	3
PID 2540 wrote to memory of 380	2540	mssecsvc.exe	3
PID 2540 wrote to memory of 380	2540	mssecsvc.exe	3
PID 2540 wrote to memory of 380	2540	mssecsvc.exe	3
PID 2540 wrote to memory of 380	2540	mssecsvc.exe	3
PID 2540 wrote to memory of 392	2540	mssecsvc.exe	4
PID 2540 wrote to memory of 392	2540	mssecsvc.exe	4
PID 2540 wrote to memory of 392	2540	mssecsvc.exe	4
PID 2540 wrote to memory of 392	2540	mssecsvc.exe	4
PID 2540 wrote to memory of 392	2540	mssecsvc.exe	4
PID 2540 wrote to memory of 392	2540	mssecsvc.exe	4
PID 2540 wrote to memory of 392	2540	mssecsvc.exe	4
PID 2540 wrote to memory of 428	2540	mssecsvc.exe	5
PID 2540 wrote to memory of 428	2540	mssecsvc.exe	5
PID 2540 wrote to memory of 428	2540	mssecsvc.exe	5
PID 2540 wrote to memory of 428	2540	mssecsvc.exe	5
PID 2540 wrote to memory of 428	2540	mssecsvc.exe	5
PID 2540 wrote to memory of 428	2540	mssecsvc.exe	5
PID 2540 wrote to memory of 428	2540	mssecsvc.exe	5
PID 2540 wrote to memory of 472	2540	mssecsvc.exe	6
PID 2540 wrote to memory of 472	2540	mssecsvc.exe	6
PID 2540 wrote to memory of 472	2540	mssecsvc.exe	6
PID 2540 wrote to memory of 472	2540	mssecsvc.exe	6
PID 2540 wrote to memory of 472	2540	mssecsvc.exe	6
PID 2540 wrote to memory of 472	2540	mssecsvc.exe	6
PID 2540 wrote to memory of 472	2540	mssecsvc.exe	6
PID 2540 wrote to memory of 488	2540	mssecsvc.exe	7
PID 2540 wrote to memory of 488	2540	mssecsvc.exe	7
PID 2540 wrote to memory of 488	2540	mssecsvc.exe	7
PID 2540 wrote to memory of 488	2540	mssecsvc.exe	7
PID 2540 wrote to memory of 488	2540	mssecsvc.exe	7
PID 2540 wrote to memory of 488	2540	mssecsvc.exe	7
PID 2540 wrote to memory of 488	2540	mssecsvc.exe	7
PID 2540 wrote to memory of 496	2540	mssecsvc.exe	8
PID 2540 wrote to memory of 496	2540	mssecsvc.exe	8
PID 2540 wrote to memory of 496	2540	mssecsvc.exe	8
PID 2540 wrote to memory of 496	2540	mssecsvc.exe	8
PID 2540 wrote to memory of 496	2540	mssecsvc.exe	8
PID 2540 wrote to memory of 496	2540	mssecsvc.exe	8
PID 2540 wrote to memory of 496	2540	mssecsvc.exe	8
PID 2540 wrote to memory of 588	2540	mssecsvc.exe	9
PID 2540 wrote to memory of 588	2540	mssecsvc.exe	9
PID 2540 wrote to memory of 588	2540	mssecsvc.exe	9
PID 2540 wrote to memory of 588	2540	mssecsvc.exe	9
PID 2540 wrote to memory of 588	2540	mssecsvc.exe	9
PID 2540 wrote to memory of 588	2540	mssecsvc.exe	9
PID 2540 wrote to memory of 588	2540	mssecsvc.exe	9
PID 2540 wrote to memory of 664	2540	mssecsvc.exe	10
PID 2540 wrote to memory of 664	2540	mssecsvc.exe	10
PID 2540 wrote to memory of 664	2540	mssecsvc.exe	10
PID 2540 wrote to memory of 664	2540	mssecsvc.exe	10

C:\Windows\system32\wininit.exe
wininit.exe
1⤵
PID:380
- C:\Windows\system32\services.exe
  C:\Windows\system32\services.exe
  2⤵
  PID:472
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k DcomLaunch
    3⤵
    PID:588
  - - C:\Windows\system32\wbem\wmiprvse.exe
      C:\Windows\system32\wbem\wmiprvse.exe
      4⤵
      PID:1628
  - - C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
      4⤵
      PID:1704
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k RPCSS
    3⤵
    PID:664
- - C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
    3⤵
    PID:732
- - C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
    3⤵
    PID:812
  - - C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      4⤵
      PID:1156
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs
    3⤵
    PID:848
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalService
    3⤵
    PID:960
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k NetworkService
    3⤵
    PID:276
- - C:\Windows\System32\spoolsv.exe
    C:\Windows\System32\spoolsv.exe
    3⤵
    PID:1004
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
    3⤵
    PID:1060
- - C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    3⤵
    PID:1092
- - C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPSVC.EXE
    "C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPSVC.EXE"
    3⤵
    PID:856
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
    3⤵
    PID:1300
- - C:\Windows\system32\sppsvc.exe
    C:\Windows\system32\sppsvc.exe
    3⤵
    PID:2908
- - C:\WINDOWS\mssecsvc.exe
    C:\WINDOWS\mssecsvc.exe -m security
    3⤵
    - Executes dropped EXE
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2800
- C:\Windows\system32\lsass.exe
  C:\Windows\system32\lsass.exe
  2⤵
  PID:488
- C:\Windows\system32\lsm.exe
  C:\Windows\system32\lsm.exe
  2⤵
  PID:496

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:392

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:428

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1224
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\51d5805abb1d7fb68d037399193a5f1b019d23e455fe4a5b82d245a020b5b05b.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2640
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\51d5805abb1d7fb68d037399193a5f1b019d23e455fe4a5b82d245a020b5b05b.dll,#1
    3⤵
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2676
  - - C:\WINDOWS\mssecsvc.exe
      C:\WINDOWS\mssecsvc.exe
      4⤵
      Executes dropped EXE
      Drops file in Windows directory
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2540

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\mssecsvc.exe

Filesize
3.6MB

MD5
80f63bea8710636ed2f30ead25e07c82

SHA1
333ff2d0719435f91d843bc742d650eff0b37b42

SHA256
2492b02a6a76b328f120bb3d6a9faac9661ead831d57993ca7108f4fc6f81828

SHA512
78f22cee3b6390233af846bb33ee5cf75123c723e78dcc5d8eabc8e5739be3dcc8e4153664561c0033fe13e5079a487a9e5700ba4517f434cf016ca15e218f9c

Download Submit
memory/2540-14-0x000000007EF70000-0x000000007EF7C000-memory.dmp

Filesize
48KB

Download
memory/2540-9-0x0000000077BEF000-0x0000000077BF0000-memory.dmp

Filesize
4KB

Download
memory/2540-8-0x0000000077BF0000-0x0000000077BF1000-memory.dmp

Filesize
4KB

Download
memory/2540-7-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/2540-13-0x0000000077BEF000-0x0000000077BF0000-memory.dmp

Filesize
4KB

Download
memory/2540-12-0x0000000077BF0000-0x0000000077BF1000-memory.dmp

Filesize
4KB

Download
memory/2540-18-0x000000007EF70000-0x000000007EF7C000-memory.dmp

Filesize
48KB

Download
memory/2540-17-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/2676-6-0x0000000002210000-0x0000000002882000-memory.dmp

Filesize
6.4MB

Download
memory/2676-19-0x0000000002210000-0x0000000002882000-memory.dmp

Filesize
6.4MB

Download
memory/2800-11-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/2800-20-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download