wannacry | a52e9e380f2bb0d2d07ac1a0aef863489170c56f9e70db56d4da8691c29be0fb

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-11-2024 07:01

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

a52e9e380f2bb0d2d07ac1a0aef863489170c56f9e70db56d4da8691c29be0fbN.dll
Size

5.0MB
MD5

e659fbf10a9f5c039eaf53d6f5e6f670
SHA1

5d08bf980bc831f56e34f00f107e231245cda101
SHA256

a52e9e380f2bb0d2d07ac1a0aef863489170c56f9e70db56d4da8691c29be0fb
SHA512

47718a5527106efbb4bb4f2634a4dcd2dcec3c657449b665060db979ef962490d6a7ef11ed34f9c3e632967439110fa44fb6065963e617bd56656a31ac31f149
SSDEEP

98304:KDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2HukRci7cplXyxN:KDqPe1Cxcxk3ZAEUadzR8yc4H0Zliv

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 (2349) 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

Processes:

mssecsvc.exemssecsvc.exe

pid	Process
2996	mssecsvc.exe
1632	mssecsvc.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

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

Processes:

rundll32.exemssecsvc.exemssecsvc.exe

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

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\ProxyEnable = "0"	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
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 = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00c7000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6918ADE6-DFB9-45FC-8FA8-ECC7E5E8A810}\WpadDecisionTime = c0a647628839db01	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6918ADE6-DFB9-45FC-8FA8-ECC7E5E8A810}\WpadDecision = "0"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\92-99-a7-cf-99-91\WpadDecisionReason = "1"	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\{6918ADE6-DFB9-45FC-8FA8-ECC7E5E8A810}\WpadDecisionReason = "1"	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6918ADE6-DFB9-45FC-8FA8-ECC7E5E8A810}\WpadNetworkName = "Network 3"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\92-99-a7-cf-99-91	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6918ADE6-DFB9-45FC-8FA8-ECC7E5E8A810}\92-99-a7-cf-99-91	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
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	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\Wpad\92-99-a7-cf-99-91\WpadDecisionTime = c0a647628839db01	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\92-99-a7-cf-99-91\WpadDecision = "0"	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
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\{6918ADE6-DFB9-45FC-8FA8-ECC7E5E8A810}	mssecsvc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid	Process
2996	mssecsvc.exe
1632	mssecsvc.exe

Suspicious behavior: MapViewOfSection 49 IoCs

Processes:

mssecsvc.exemssecsvc.exe

pid	Process
2996	mssecsvc.exe
2996	mssecsvc.exe
2996	mssecsvc.exe
2996	mssecsvc.exe
2996	mssecsvc.exe
2996	mssecsvc.exe
2996	mssecsvc.exe
2996	mssecsvc.exe
2996	mssecsvc.exe
2996	mssecsvc.exe
2996	mssecsvc.exe
2996	mssecsvc.exe
2996	mssecsvc.exe
2996	mssecsvc.exe
2996	mssecsvc.exe
2996	mssecsvc.exe
2996	mssecsvc.exe
2996	mssecsvc.exe
2996	mssecsvc.exe
2996	mssecsvc.exe
2996	mssecsvc.exe
2996	mssecsvc.exe
2996	mssecsvc.exe
2996	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe
1632	mssecsvc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

mssecsvc.exemssecsvc.exe

description	pid	Process
Token: SeDebugPrivilege	2996	mssecsvc.exe
Token: SeDebugPrivilege	1632	mssecsvc.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

rundll32.exerundll32.exemssecsvc.exe

description	pid	Process	procid_target
PID 1968 wrote to memory of 2344	1968	rundll32.exe	31
PID 1968 wrote to memory of 2344	1968	rundll32.exe	31
PID 1968 wrote to memory of 2344	1968	rundll32.exe	31
PID 1968 wrote to memory of 2344	1968	rundll32.exe	31
PID 1968 wrote to memory of 2344	1968	rundll32.exe	31
PID 1968 wrote to memory of 2344	1968	rundll32.exe	31
PID 1968 wrote to memory of 2344	1968	rundll32.exe	31
PID 2344 wrote to memory of 2996	2344	rundll32.exe	32
PID 2344 wrote to memory of 2996	2344	rundll32.exe	32
PID 2344 wrote to memory of 2996	2344	rundll32.exe	32
PID 2344 wrote to memory of 2996	2344	rundll32.exe	32
PID 2996 wrote to memory of 384	2996	mssecsvc.exe	3
PID 2996 wrote to memory of 384	2996	mssecsvc.exe	3
PID 2996 wrote to memory of 384	2996	mssecsvc.exe	3
PID 2996 wrote to memory of 384	2996	mssecsvc.exe	3
PID 2996 wrote to memory of 384	2996	mssecsvc.exe	3
PID 2996 wrote to memory of 384	2996	mssecsvc.exe	3
PID 2996 wrote to memory of 384	2996	mssecsvc.exe	3
PID 2996 wrote to memory of 392	2996	mssecsvc.exe	4
PID 2996 wrote to memory of 392	2996	mssecsvc.exe	4
PID 2996 wrote to memory of 392	2996	mssecsvc.exe	4
PID 2996 wrote to memory of 392	2996	mssecsvc.exe	4
PID 2996 wrote to memory of 392	2996	mssecsvc.exe	4
PID 2996 wrote to memory of 392	2996	mssecsvc.exe	4
PID 2996 wrote to memory of 392	2996	mssecsvc.exe	4
PID 2996 wrote to memory of 432	2996	mssecsvc.exe	5
PID 2996 wrote to memory of 432	2996	mssecsvc.exe	5
PID 2996 wrote to memory of 432	2996	mssecsvc.exe	5
PID 2996 wrote to memory of 432	2996	mssecsvc.exe	5
PID 2996 wrote to memory of 432	2996	mssecsvc.exe	5
PID 2996 wrote to memory of 432	2996	mssecsvc.exe	5
PID 2996 wrote to memory of 432	2996	mssecsvc.exe	5
PID 2996 wrote to memory of 476	2996	mssecsvc.exe	6
PID 2996 wrote to memory of 476	2996	mssecsvc.exe	6
PID 2996 wrote to memory of 476	2996	mssecsvc.exe	6
PID 2996 wrote to memory of 476	2996	mssecsvc.exe	6
PID 2996 wrote to memory of 476	2996	mssecsvc.exe	6
PID 2996 wrote to memory of 476	2996	mssecsvc.exe	6
PID 2996 wrote to memory of 476	2996	mssecsvc.exe	6
PID 2996 wrote to memory of 492	2996	mssecsvc.exe	7
PID 2996 wrote to memory of 492	2996	mssecsvc.exe	7
PID 2996 wrote to memory of 492	2996	mssecsvc.exe	7
PID 2996 wrote to memory of 492	2996	mssecsvc.exe	7
PID 2996 wrote to memory of 492	2996	mssecsvc.exe	7
PID 2996 wrote to memory of 492	2996	mssecsvc.exe	7
PID 2996 wrote to memory of 492	2996	mssecsvc.exe	7
PID 2996 wrote to memory of 500	2996	mssecsvc.exe	8
PID 2996 wrote to memory of 500	2996	mssecsvc.exe	8
PID 2996 wrote to memory of 500	2996	mssecsvc.exe	8
PID 2996 wrote to memory of 500	2996	mssecsvc.exe	8
PID 2996 wrote to memory of 500	2996	mssecsvc.exe	8
PID 2996 wrote to memory of 500	2996	mssecsvc.exe	8
PID 2996 wrote to memory of 500	2996	mssecsvc.exe	8
PID 2996 wrote to memory of 596	2996	mssecsvc.exe	9
PID 2996 wrote to memory of 596	2996	mssecsvc.exe	9
PID 2996 wrote to memory of 596	2996	mssecsvc.exe	9
PID 2996 wrote to memory of 596	2996	mssecsvc.exe	9
PID 2996 wrote to memory of 596	2996	mssecsvc.exe	9
PID 2996 wrote to memory of 596	2996	mssecsvc.exe	9
PID 2996 wrote to memory of 596	2996	mssecsvc.exe	9
PID 2996 wrote to memory of 672	2996	mssecsvc.exe	10
PID 2996 wrote to memory of 672	2996	mssecsvc.exe	10
PID 2996 wrote to memory of 672	2996	mssecsvc.exe	10
PID 2996 wrote to memory of 672	2996	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:596
  - - C:\Windows\system32\wbem\wmiprvse.exe
      C:\Windows\system32\wbem\wmiprvse.exe
      4⤵
      PID:316
  - - C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
      4⤵
      PID:760
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k RPCSS
    3⤵
    PID:672
- - 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:808
  - - C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      4⤵
      PID:1092
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs
    3⤵
    PID:852
  - - \\?\C:\Windows\system32\wbem\WMIADAP.EXE
      wmiadap.exe /F /T /R
      4⤵
      PID:1940
- - 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:272
- - C:\Windows\System32\spoolsv.exe
    C:\Windows\System32\spoolsv.exe
    3⤵
    PID:1052
- - C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    3⤵
    PID:1060
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
    3⤵
    PID:1164
- - C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPSVC.EXE
    "C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPSVC.EXE"
    3⤵
    PID:1472
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
    3⤵
    PID:2176
- - C:\Windows\system32\sppsvc.exe
    C:\Windows\system32\sppsvc.exe
    3⤵
    PID:1668
- - 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:1632
- 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:1140
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a52e9e380f2bb0d2d07ac1a0aef863489170c56f9e70db56d4da8691c29be0fbN.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1968
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\a52e9e380f2bb0d2d07ac1a0aef863489170c56f9e70db56d4da8691c29be0fbN.dll,#1
    3⤵
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2344
  - - 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:2996

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

Loading Replay Monitor...

Downloads

C:\Windows\mssecsvc.exe

Filesize
4.9MB

MD5
3af0d449da9178878be31eae79aac1a8

SHA1
a9b7e3b1516c52692f79d0a9c8fd5885aa43ecd0

SHA256
caa770ec49b4e19d3d77c1e0404f7655a5c338bfb38920df754f18b69c19dd68

SHA512
fca796d3013eaeae20a7ad084032faec38befd5aa2969db6a457f522bbccc1ce5029db0f5fc3086ce268fe1ad3dd363aa34e99e4d365007437364a9bc1c69f46

Download Submit
memory/1632-11-0x0000000000400000-0x0000000000BB8000-memory.dmp

Filesize
7.7MB

Download
memory/1632-15-0x0000000000400000-0x0000000000BB8000-memory.dmp

Filesize
7.7MB

Download
memory/2344-6-0x0000000002190000-0x0000000002948000-memory.dmp

Filesize
7.7MB

Download
memory/2996-7-0x0000000000400000-0x0000000000BB8000-memory.dmp

Filesize
7.7MB

Download
memory/2996-9-0x0000000077C0F000-0x0000000077C10000-memory.dmp

Filesize
4KB

Download
memory/2996-8-0x0000000077C10000-0x0000000077C11000-memory.dmp

Filesize
4KB

Download
memory/2996-14-0x0000000000400000-0x0000000000BB8000-memory.dmp

Filesize
7.7MB

Download