wannacry | 75af5c958601b8319dfc63678f0861dc715456ce1815abe16298e9e21fb3f1a3

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-09-2024 01:46

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General

Target

d65a8271ee567a12f3a558876e630d00N.dll
Size

5.0MB
MD5

d65a8271ee567a12f3a558876e630d00
SHA1

c6245cf9f029cd5ddf647d8a2c8650295b54cc32
SHA256

75af5c958601b8319dfc63678f0861dc715456ce1815abe16298e9e21fb3f1a3
SHA512

d8a0c6aba930e49912ed5224e22add82cf8c5d76cc550ba2dbb50a717c58a7e8c48a83c9a18d04fdea5d35fc918c95dbcbeecaf414514184710288d430e84a49
SSDEEP

98304:Y8qPoBhz1aRxcSUDk36SAEdhvxWa9P593R8s3:Y8qPe1Cxcxk3ZAEUadzR8s

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (2499) 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
2972	mssecsvc.exe
2672	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 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	mssecsvc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2972	mssecsvc.exe
2672	mssecsvc.exe

Suspicious behavior: MapViewOfSection 45 IoCs

pid	Process
2972	mssecsvc.exe
2972	mssecsvc.exe
2972	mssecsvc.exe
2972	mssecsvc.exe
2972	mssecsvc.exe
2972	mssecsvc.exe
2972	mssecsvc.exe
2972	mssecsvc.exe
2972	mssecsvc.exe
2972	mssecsvc.exe
2972	mssecsvc.exe
2972	mssecsvc.exe
2972	mssecsvc.exe
2972	mssecsvc.exe
2972	mssecsvc.exe
2972	mssecsvc.exe
2972	mssecsvc.exe
2972	mssecsvc.exe
2972	mssecsvc.exe
2972	mssecsvc.exe
2972	mssecsvc.exe
2972	mssecsvc.exe
2672	mssecsvc.exe
2672	mssecsvc.exe
2672	mssecsvc.exe
2672	mssecsvc.exe
2672	mssecsvc.exe
2672	mssecsvc.exe
2672	mssecsvc.exe
2672	mssecsvc.exe
2672	mssecsvc.exe
2672	mssecsvc.exe
2672	mssecsvc.exe
2672	mssecsvc.exe
2672	mssecsvc.exe
2672	mssecsvc.exe
2672	mssecsvc.exe
2672	mssecsvc.exe
2672	mssecsvc.exe
2672	mssecsvc.exe
2672	mssecsvc.exe
2672	mssecsvc.exe
2672	mssecsvc.exe
2672	mssecsvc.exe
2672	mssecsvc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2972	mssecsvc.exe
Token: SeDebugPrivilege	2672	mssecsvc.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2796 wrote to memory of 1560	2796	rundll32.exe	29
PID 2796 wrote to memory of 1560	2796	rundll32.exe	29
PID 2796 wrote to memory of 1560	2796	rundll32.exe	29
PID 2796 wrote to memory of 1560	2796	rundll32.exe	29
PID 2796 wrote to memory of 1560	2796	rundll32.exe	29
PID 2796 wrote to memory of 1560	2796	rundll32.exe	29
PID 2796 wrote to memory of 1560	2796	rundll32.exe	29
PID 1560 wrote to memory of 2972	1560	rundll32.exe	30
PID 1560 wrote to memory of 2972	1560	rundll32.exe	30
PID 1560 wrote to memory of 2972	1560	rundll32.exe	30
PID 1560 wrote to memory of 2972	1560	rundll32.exe	30
PID 2972 wrote to memory of 384	2972	mssecsvc.exe	3
PID 2972 wrote to memory of 384	2972	mssecsvc.exe	3
PID 2972 wrote to memory of 384	2972	mssecsvc.exe	3
PID 2972 wrote to memory of 384	2972	mssecsvc.exe	3
PID 2972 wrote to memory of 384	2972	mssecsvc.exe	3
PID 2972 wrote to memory of 384	2972	mssecsvc.exe	3
PID 2972 wrote to memory of 384	2972	mssecsvc.exe	3
PID 2972 wrote to memory of 396	2972	mssecsvc.exe	4
PID 2972 wrote to memory of 396	2972	mssecsvc.exe	4
PID 2972 wrote to memory of 396	2972	mssecsvc.exe	4
PID 2972 wrote to memory of 396	2972	mssecsvc.exe	4
PID 2972 wrote to memory of 396	2972	mssecsvc.exe	4
PID 2972 wrote to memory of 396	2972	mssecsvc.exe	4
PID 2972 wrote to memory of 396	2972	mssecsvc.exe	4
PID 2972 wrote to memory of 432	2972	mssecsvc.exe	5
PID 2972 wrote to memory of 432	2972	mssecsvc.exe	5
PID 2972 wrote to memory of 432	2972	mssecsvc.exe	5
PID 2972 wrote to memory of 432	2972	mssecsvc.exe	5
PID 2972 wrote to memory of 432	2972	mssecsvc.exe	5
PID 2972 wrote to memory of 432	2972	mssecsvc.exe	5
PID 2972 wrote to memory of 432	2972	mssecsvc.exe	5
PID 2972 wrote to memory of 476	2972	mssecsvc.exe	6
PID 2972 wrote to memory of 476	2972	mssecsvc.exe	6
PID 2972 wrote to memory of 476	2972	mssecsvc.exe	6
PID 2972 wrote to memory of 476	2972	mssecsvc.exe	6
PID 2972 wrote to memory of 476	2972	mssecsvc.exe	6
PID 2972 wrote to memory of 476	2972	mssecsvc.exe	6
PID 2972 wrote to memory of 476	2972	mssecsvc.exe	6
PID 2972 wrote to memory of 492	2972	mssecsvc.exe	7
PID 2972 wrote to memory of 492	2972	mssecsvc.exe	7
PID 2972 wrote to memory of 492	2972	mssecsvc.exe	7
PID 2972 wrote to memory of 492	2972	mssecsvc.exe	7
PID 2972 wrote to memory of 492	2972	mssecsvc.exe	7
PID 2972 wrote to memory of 492	2972	mssecsvc.exe	7
PID 2972 wrote to memory of 492	2972	mssecsvc.exe	7
PID 2972 wrote to memory of 500	2972	mssecsvc.exe	8
PID 2972 wrote to memory of 500	2972	mssecsvc.exe	8
PID 2972 wrote to memory of 500	2972	mssecsvc.exe	8
PID 2972 wrote to memory of 500	2972	mssecsvc.exe	8
PID 2972 wrote to memory of 500	2972	mssecsvc.exe	8
PID 2972 wrote to memory of 500	2972	mssecsvc.exe	8
PID 2972 wrote to memory of 500	2972	mssecsvc.exe	8
PID 2972 wrote to memory of 592	2972	mssecsvc.exe	9
PID 2972 wrote to memory of 592	2972	mssecsvc.exe	9
PID 2972 wrote to memory of 592	2972	mssecsvc.exe	9
PID 2972 wrote to memory of 592	2972	mssecsvc.exe	9
PID 2972 wrote to memory of 592	2972	mssecsvc.exe	9
PID 2972 wrote to memory of 592	2972	mssecsvc.exe	9
PID 2972 wrote to memory of 592	2972	mssecsvc.exe	9
PID 2972 wrote to memory of 668	2972	mssecsvc.exe	10
PID 2972 wrote to memory of 668	2972	mssecsvc.exe	10
PID 2972 wrote to memory of 668	2972	mssecsvc.exe	10
PID 2972 wrote to memory of 668	2972	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:592
  - - C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
      4⤵
      PID:1188
  - - C:\Windows\system32\wbem\wmiprvse.exe
      C:\Windows\system32\wbem\wmiprvse.exe
      4⤵
      PID:1964
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k RPCSS
    3⤵
    PID:668
- - C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
    3⤵
    PID:740
- - 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:1180
- - 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:968
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k NetworkService
    3⤵
    PID:236
- - 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:1072
- - C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    3⤵
    PID:1112
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
    3⤵
    PID:2240
- - C:\Windows\system32\sppsvc.exe
    C:\Windows\system32\sppsvc.exe
    3⤵
    PID:2292
- - 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:2672
- 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:396

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:432

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1236
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\d65a8271ee567a12f3a558876e630d00N.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2796
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\d65a8271ee567a12f3a558876e630d00N.dll,#1
    3⤵
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1560
  - - 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:2972

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
3.6MB

MD5
ae4a397ecf04a951388f8ddc4d563f3f

SHA1
8e8b24cb26eea9106a62ec78f0dc6d55b589da5d

SHA256
776a6083f9e55c5288fd73046970c734edd8ab2b2ef55708a902db97916695fe

SHA512
a9e6161960df322d15ec0375d8185f19e70771e768375253b3736dc7c6b92a3edfecfbab6f9d0e46812292a103e50871e83092eb6ecd4e883d655c6b669dc0f0

Download Submit
memory/1560-6-0x00000000022F0000-0x0000000002962000-memory.dmp

Filesize
6.4MB

Download
memory/1560-19-0x00000000022F0000-0x0000000002962000-memory.dmp

Filesize
6.4MB

Download
memory/2672-11-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/2672-20-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/2972-15-0x000000007744F000-0x0000000077450000-memory.dmp

Filesize
4KB

Download
memory/2972-8-0x000000007744F000-0x0000000077450000-memory.dmp

Filesize
4KB

Download
memory/2972-17-0x000000007EF90000-0x000000007EF9C000-memory.dmp

Filesize
48KB

Download
memory/2972-18-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/2972-14-0x000000007EF90000-0x000000007EF9C000-memory.dmp

Filesize
48KB

Download
memory/2972-13-0x0000000077450000-0x0000000077451000-memory.dmp

Filesize
4KB

Download
memory/2972-9-0x0000000077450000-0x0000000077451000-memory.dmp

Filesize
4KB

Download
memory/2972-7-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download