wannacry | 9433714c0f9c4ee4345f8c9c239bc0070ccc62aacc87760a1e8379726f258979

General

Target

6d72a26ac1f70167935613dfc6ed93bf_JaffaCakes118.dll
Size

5.0MB
MD5

6d72a26ac1f70167935613dfc6ed93bf
SHA1

e95d1b452a8188f313ffb1336d7407a70a826dd5
SHA256

9433714c0f9c4ee4345f8c9c239bc0070ccc62aacc87760a1e8379726f258979
SHA512

811dbe47c9a8127c261f4994e9ff56f43c8b2cefbfa4cece38c5d83077cec282a26a24602d63c342e56b8cc0b746d6211db560e3fc5473d015bcd42005ffc926
SSDEEP

98304:TDqPoBhz1aRxcSUDk36SAEdhvxWa9X8yAVp2H:TDqPe1Cxcxk3ZAEUaR8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3335) 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 3 IoCs

Processes:

mssecsvc.exemssecsvc.exetasksche.exe

pid process

3020 mssecsvc.exe
2284 mssecsvc.exe
2652 tasksche.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

pid	process
3020	mssecsvc.exe
2284	mssecsvc.exe
2652	tasksche.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

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

Processes:

mssecsvc.exe

description	ioc	process
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\UNCAsIntranet = "0"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7F15AAE7-4121-4599-B42B-A705620238FD}	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7F15AAE7-4121-4599-B42B-A705620238FD}\WpadDecisionTime = b02285f799adda01	mssecsvc.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7e-0a-eb-d5-dc-fb\WpadDecisionTime = b02285f799adda01	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7e-0a-eb-d5-dc-fb\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\ProxyEnable = "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\History\CachePrefix = "Visited:"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7F15AAE7-4121-4599-B42B-A705620238FD}\WpadDecisionReason = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7F15AAE7-4121-4599-B42B-A705620238FD}\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\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00db000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7e-0a-eb-d5-dc-fb\WpadDecision = "0"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7e-0a-eb-d5-dc-fb	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7F15AAE7-4121-4599-B42B-A705620238FD}\7e-0a-eb-d5-dc-fb	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	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 (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 (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7F15AAE7-4121-4599-B42B-A705620238FD}\WpadNetworkName = "Network 3"	mssecsvc.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 2944 wrote to memory of 2964	2944	rundll32.exe	rundll32.exe
PID 2944 wrote to memory of 2964	2944	rundll32.exe	rundll32.exe
PID 2944 wrote to memory of 2964	2944	rundll32.exe	rundll32.exe
PID 2944 wrote to memory of 2964	2944	rundll32.exe	rundll32.exe
PID 2944 wrote to memory of 2964	2944	rundll32.exe	rundll32.exe
PID 2944 wrote to memory of 2964	2944	rundll32.exe	rundll32.exe
PID 2944 wrote to memory of 2964	2944	rundll32.exe	rundll32.exe
PID 2964 wrote to memory of 3020	2964	rundll32.exe	mssecsvc.exe
PID 2964 wrote to memory of 3020	2964	rundll32.exe	mssecsvc.exe
PID 2964 wrote to memory of 3020	2964	rundll32.exe	mssecsvc.exe
PID 2964 wrote to memory of 3020	2964	rundll32.exe	mssecsvc.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6d72a26ac1f70167935613dfc6ed93bf_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2944
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\6d72a26ac1f70167935613dfc6ed93bf_JaffaCakes118.dll,#1
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:2964
- - C:\WINDOWS\mssecsvc.exe
    C:\WINDOWS\mssecsvc.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    PID:3020
  - - C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      4⤵
      Executes dropped EXE
      PID:2652

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2284

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

2

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\mssecsvc.exe

Filesize
3.6MB

MD5
3f3393a94965480637f611a523caf0de

SHA1
03805196d601f25c613dc882d6d6ab833296e967

SHA256
936d74fd89ddf4736979d9da96a37a22a0cb513480d9449999f730f1c006046f

SHA512
43316970e2b5315cd3856d9d1f6ed25ec4a0c26e927b6b87f376a84bfe227faad93d77b76f045ae04eede1d3ea1176e436ff47c066ad75e231e2e792f7fc8f39

Download Submit
C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
34fc62dc858e3c87fa5040e9bc9bf08c

SHA1
6c6c0e3bc6882ba6dc58f3275b9a326b705b39b0

SHA256
c89b3dbc3001836dc13103e56b4731c3d7e589090753517c88fbe35a76d66eec

SHA512
3232c7b01636222092e2a98151174585dba1c98fe77bf4cf5b867079477e706b4381501d85cb7ff9808f572ee7417e03d1150760769ae616f5b261917795fa35

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads