wannacry | 464d83ae52e2c6428504335d44bf79f866757a1d47281a1f1d4a51acc32e25d4

General

Target

be376452707de19a4abf88da57dbd3a2_JaffaCakes118.dll
Size

5.0MB
MD5

be376452707de19a4abf88da57dbd3a2
SHA1

4faf9ea5ffea32f7b09f666bc2bec21f4062cbd5
SHA256

464d83ae52e2c6428504335d44bf79f866757a1d47281a1f1d4a51acc32e25d4
SHA512

a4203e37fbdda7da6e4893b7d6b2fd66526bdd70be28ba69b1df291cbd05129c5059707f78d968acf418f6281ae578cf6a58d2fc2d4142c71ff35d66133507c1
SSDEEP

49152:SnAQqMSPbcBV3GGafYzflm+fZTFZIGayscOqdImwW6LC:+DqPoBQ+iUP2dWOC

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry

Executes dropped EXE 3 IoCs

pid	Process
1088	mssecsvc.exe
4808	mssecsvc.exe
2100	tasksche.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

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
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\ZoneMap\ProxyBypass = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	mssecsvc.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
3908	WINWORD.EXE
3908	WINWORD.EXE

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
3908	WINWORD.EXE
3908	WINWORD.EXE
3908	WINWORD.EXE
3908	WINWORD.EXE
3908	WINWORD.EXE
3908	WINWORD.EXE
3908	WINWORD.EXE
3908	WINWORD.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4784 wrote to memory of 2888	4784	rundll32.exe	81
PID 4784 wrote to memory of 2888	4784	rundll32.exe	81
PID 4784 wrote to memory of 2888	4784	rundll32.exe	81
PID 2888 wrote to memory of 1088	2888	rundll32.exe	83
PID 2888 wrote to memory of 1088	2888	rundll32.exe	83
PID 2888 wrote to memory of 1088	2888	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\be376452707de19a4abf88da57dbd3a2_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4784
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\be376452707de19a4abf88da57dbd3a2_JaffaCakes118.dll,#1
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2888
- - C:\WINDOWS\mssecsvc.exe
    C:\WINDOWS\mssecsvc.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    PID:1088
  - - C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      4⤵
      Executes dropped EXE
      PID:2100

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4808

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:5088

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\Desktop\UpdateDebug.docx" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:3908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat

Filesize
306B

MD5
504c665c8521d50e3f468a63cb773b24

SHA1
72acd7aaf28e204de582be681e93e946e008100e

SHA256
34ae0a2bd48226eb66a984c4fa4dc6a8b8a9765de547e98543f05e5377fdd00a

SHA512
03af9c974d0f2c8e08b3e4dc5a05b961ac7b6d1c41dbea119fe1fe79fb6fe4e196eda87ec5ee6b65de37619ef83d6309407071a62d1272487914a9d457e273d9

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\UProof\ExcludeDictionaryEN0409.lex

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
C:\Windows\mssecsvc.exe

Filesize
3.6MB

MD5
80824697873235ab2e3020d850ac67a4

SHA1
1a65d9a772031fb20c0ce446712771fca2ffe3ea

SHA256
26a3c75e42db705cbd28d71270febec8b106534bea2c2ee9bf290f4e8fe6a537

SHA512
e12960dfbc6fa7fa03aee3a13140b0900735138f2ce11ce368a915bb241805c5af7b12cad6b8ff3d0b09aac79b1da2a0580a1018df77fa0deeae913172a834c1

Download Submit
C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
719bb92d7efdbb351531331f1864e945

SHA1
851c16a405445e0b3a0596e8e98f55e0b4dd7214

SHA256
7792387162752d9260ee5bbb228c11328269853ba473b6682931f1b7c6a9c176

SHA512
46a6e02f763ad37c7580fedb4b9d8c21522d88bd90a227cf50f51ae6ae29af55d2ba5852d1282cabc7d0e76d93ca478319db4ffd1950d38c09dc447102173ec2

Download Submit
memory/3908-8-0x00007FFE48290000-0x00007FFE482A0000-memory.dmp

Filesize
64KB

Download
memory/3908-11-0x00007FFE48290000-0x00007FFE482A0000-memory.dmp

Filesize
64KB

Download
memory/3908-10-0x00007FFE48290000-0x00007FFE482A0000-memory.dmp

Filesize
64KB

Download
memory/3908-9-0x00007FFE48290000-0x00007FFE482A0000-memory.dmp

Filesize
64KB

Download
memory/3908-12-0x00007FFE48290000-0x00007FFE482A0000-memory.dmp

Filesize
64KB

Download
memory/3908-13-0x00007FFE456F0000-0x00007FFE45700000-memory.dmp

Filesize
64KB

Download
memory/3908-14-0x00007FFE456F0000-0x00007FFE45700000-memory.dmp

Filesize
64KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads