wannacry | 3f24219503b4d45526ee496397fc08ee3dd10c672adff51cf065961277b0fdb1

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16-11-2024 21:56

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General

Target

3f24219503b4d45526ee496397fc08ee3dd10c672adff51cf065961277b0fdb1.dll
Size

5.0MB
MD5

9a3b9b42edd0d0a8d9c18dc4a6977ebd
SHA1

c1eb2b5d521a3ee146c01a948d07da796ce46803
SHA256

3f24219503b4d45526ee496397fc08ee3dd10c672adff51cf065961277b0fdb1
SHA512

3fb783cce8244b90224260185b705cae799a292ff4c33e420644d5e509158f937d30aa0d810c701ac81c2e7e7d46e93da7c242ee547f06a4cd9a39dc2ceb2e62
SSDEEP

98304:KDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2HukRci7cplXyxNV:KDqPe1Cxcxk3ZAEUadzR8yc4H0ZlivV

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 (2435) 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
2964	mssecsvc.exe
2200	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

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
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\History\CachePrefix = "Visited:"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DCA3B564-680A-4004-9466-DBD0D73D2048}	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DCA3B564-680A-4004-9466-DBD0D73D2048}\WpadNetworkName = "Network 3"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-33-20-d1-76-40	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DCA3B564-680A-4004-9466-DBD0D73D2048}\5e-33-20-d1-76-40	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
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 (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-33-20-d1-76-40\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	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0176000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-33-20-d1-76-40\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\ZoneMap\	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DCA3B564-680A-4004-9466-DBD0D73D2048}\WpadDecisionReason = "1"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DCA3B564-680A-4004-9466-DBD0D73D2048}\WpadDecisionTime = 7080676b7238db01	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DCA3B564-680A-4004-9466-DBD0D73D2048}\WpadDecision = "0"	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-33-20-d1-76-40\WpadDecisionTime = 7080676b7238db01	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\ZoneMap\AutoDetect = "1"	mssecsvc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2964	mssecsvc.exe
2200	mssecsvc.exe

Suspicious behavior: MapViewOfSection 49 IoCs

pid	Process
2964	mssecsvc.exe
2964	mssecsvc.exe
2964	mssecsvc.exe
2964	mssecsvc.exe
2964	mssecsvc.exe
2964	mssecsvc.exe
2964	mssecsvc.exe
2964	mssecsvc.exe
2964	mssecsvc.exe
2964	mssecsvc.exe
2964	mssecsvc.exe
2964	mssecsvc.exe
2964	mssecsvc.exe
2964	mssecsvc.exe
2964	mssecsvc.exe
2964	mssecsvc.exe
2964	mssecsvc.exe
2964	mssecsvc.exe
2964	mssecsvc.exe
2964	mssecsvc.exe
2964	mssecsvc.exe
2964	mssecsvc.exe
2964	mssecsvc.exe
2964	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe
2200	mssecsvc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2964	mssecsvc.exe
Token: SeDebugPrivilege	2200	mssecsvc.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1708 wrote to memory of 2948	1708	rundll32.exe	31
PID 1708 wrote to memory of 2948	1708	rundll32.exe	31
PID 1708 wrote to memory of 2948	1708	rundll32.exe	31
PID 1708 wrote to memory of 2948	1708	rundll32.exe	31
PID 1708 wrote to memory of 2948	1708	rundll32.exe	31
PID 1708 wrote to memory of 2948	1708	rundll32.exe	31
PID 1708 wrote to memory of 2948	1708	rundll32.exe	31
PID 2948 wrote to memory of 2964	2948	rundll32.exe	32
PID 2948 wrote to memory of 2964	2948	rundll32.exe	32
PID 2948 wrote to memory of 2964	2948	rundll32.exe	32
PID 2948 wrote to memory of 2964	2948	rundll32.exe	32
PID 2964 wrote to memory of 384	2964	mssecsvc.exe	3
PID 2964 wrote to memory of 384	2964	mssecsvc.exe	3
PID 2964 wrote to memory of 384	2964	mssecsvc.exe	3
PID 2964 wrote to memory of 384	2964	mssecsvc.exe	3
PID 2964 wrote to memory of 384	2964	mssecsvc.exe	3
PID 2964 wrote to memory of 384	2964	mssecsvc.exe	3
PID 2964 wrote to memory of 384	2964	mssecsvc.exe	3
PID 2964 wrote to memory of 392	2964	mssecsvc.exe	4
PID 2964 wrote to memory of 392	2964	mssecsvc.exe	4
PID 2964 wrote to memory of 392	2964	mssecsvc.exe	4
PID 2964 wrote to memory of 392	2964	mssecsvc.exe	4
PID 2964 wrote to memory of 392	2964	mssecsvc.exe	4
PID 2964 wrote to memory of 392	2964	mssecsvc.exe	4
PID 2964 wrote to memory of 392	2964	mssecsvc.exe	4
PID 2964 wrote to memory of 432	2964	mssecsvc.exe	5
PID 2964 wrote to memory of 432	2964	mssecsvc.exe	5
PID 2964 wrote to memory of 432	2964	mssecsvc.exe	5
PID 2964 wrote to memory of 432	2964	mssecsvc.exe	5
PID 2964 wrote to memory of 432	2964	mssecsvc.exe	5
PID 2964 wrote to memory of 432	2964	mssecsvc.exe	5
PID 2964 wrote to memory of 432	2964	mssecsvc.exe	5
PID 2964 wrote to memory of 476	2964	mssecsvc.exe	6
PID 2964 wrote to memory of 476	2964	mssecsvc.exe	6
PID 2964 wrote to memory of 476	2964	mssecsvc.exe	6
PID 2964 wrote to memory of 476	2964	mssecsvc.exe	6
PID 2964 wrote to memory of 476	2964	mssecsvc.exe	6
PID 2964 wrote to memory of 476	2964	mssecsvc.exe	6
PID 2964 wrote to memory of 476	2964	mssecsvc.exe	6
PID 2964 wrote to memory of 492	2964	mssecsvc.exe	7
PID 2964 wrote to memory of 492	2964	mssecsvc.exe	7
PID 2964 wrote to memory of 492	2964	mssecsvc.exe	7
PID 2964 wrote to memory of 492	2964	mssecsvc.exe	7
PID 2964 wrote to memory of 492	2964	mssecsvc.exe	7
PID 2964 wrote to memory of 492	2964	mssecsvc.exe	7
PID 2964 wrote to memory of 492	2964	mssecsvc.exe	7
PID 2964 wrote to memory of 500	2964	mssecsvc.exe	8
PID 2964 wrote to memory of 500	2964	mssecsvc.exe	8
PID 2964 wrote to memory of 500	2964	mssecsvc.exe	8
PID 2964 wrote to memory of 500	2964	mssecsvc.exe	8
PID 2964 wrote to memory of 500	2964	mssecsvc.exe	8
PID 2964 wrote to memory of 500	2964	mssecsvc.exe	8
PID 2964 wrote to memory of 500	2964	mssecsvc.exe	8
PID 2964 wrote to memory of 600	2964	mssecsvc.exe	9
PID 2964 wrote to memory of 600	2964	mssecsvc.exe	9
PID 2964 wrote to memory of 600	2964	mssecsvc.exe	9
PID 2964 wrote to memory of 600	2964	mssecsvc.exe	9
PID 2964 wrote to memory of 600	2964	mssecsvc.exe	9
PID 2964 wrote to memory of 600	2964	mssecsvc.exe	9
PID 2964 wrote to memory of 600	2964	mssecsvc.exe	9
PID 2964 wrote to memory of 676	2964	mssecsvc.exe	10
PID 2964 wrote to memory of 676	2964	mssecsvc.exe	10
PID 2964 wrote to memory of 676	2964	mssecsvc.exe	10
PID 2964 wrote to memory of 676	2964	mssecsvc.exe	10

C:\Windows\system32\wininit.exe
wininit.exe
1⤵
PID:384
- C:\Windows\system32\services.exe
  C:\Windows\system32\services.exe
  2⤵
  PID:476
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k DcomLaunch
    3⤵
    PID:600
  - - C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
      4⤵
      PID:2008
  - - C:\Windows\system32\wbem\wmiprvse.exe
      C:\Windows\system32\wbem\wmiprvse.exe
      4⤵
      PID:1468
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k RPCSS
    3⤵
    PID:676
- - C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
    3⤵
    PID:748
- - 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:1160
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs
    3⤵
    PID:840
  - - \\?\C:\Windows\system32\wbem\WMIADAP.EXE
      wmiadap.exe /F /T /R
      4⤵
      PID:2148
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalService
    3⤵
    PID:968
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k NetworkService
    3⤵
    PID:280
- - C:\Windows\System32\spoolsv.exe
    C:\Windows\System32\spoolsv.exe
    3⤵
    PID:324
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
    3⤵
    PID:1068
- - C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    3⤵
    PID:1112
- - 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:2628
- - C:\Windows\system32\sppsvc.exe
    C:\Windows\system32\sppsvc.exe
    3⤵
    PID:2260
- - 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:2200
- C:\Windows\system32\lsass.exe
  C:\Windows\system32\lsass.exe
  2⤵
  PID:492
- C:\Windows\system32\lsm.exe
  C:\Windows\system32\lsm.exe
  2⤵
  PID:500

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:432

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1188
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3f24219503b4d45526ee496397fc08ee3dd10c672adff51cf065961277b0fdb1.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1708
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\3f24219503b4d45526ee496397fc08ee3dd10c672adff51cf065961277b0fdb1.dll,#1
    3⤵
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2948
  - - 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:2964

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

Replay Monitor

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Downloads

C:\Windows\mssecsvc.exe

Filesize
4.9MB

MD5
3af0d449da9178878be31eae79aac1a8

SHA1
a9b7e3b1516c52692f79d0a9c8fd5885aa43ecd0

SHA256
caa770ec49b4e19d3d77c1e0404f7655a5c338bfb38920df754f18b69c19dd68

SHA512
fca796d3013eaeae20a7ad084032faec38befd5aa2969db6a457f522bbccc1ce5029db0f5fc3086ce268fe1ad3dd363aa34e99e4d365007437364a9bc1c69f46

Download Submit
memory/2200-11-0x0000000000400000-0x0000000000BB8000-memory.dmp

Filesize
7.7MB

Download
memory/2200-16-0x0000000000400000-0x0000000000BB8000-memory.dmp

Filesize
7.7MB

Download
memory/2948-6-0x0000000001F20000-0x00000000026D8000-memory.dmp

Filesize
7.7MB

Download
memory/2948-15-0x0000000001F20000-0x00000000026D8000-memory.dmp

Filesize
7.7MB

Download
memory/2964-7-0x0000000000400000-0x0000000000BB8000-memory.dmp

Filesize
7.7MB

Download
memory/2964-9-0x0000000077C80000-0x0000000077C81000-memory.dmp

Filesize
4KB

Download
memory/2964-8-0x0000000077C7F000-0x0000000077C80000-memory.dmp

Filesize
4KB

Download
memory/2964-14-0x0000000000400000-0x0000000000BB8000-memory.dmp

Filesize
7.7MB

Download