wannacry | 0e678cdb82e5f69f6116cf47cc452ff27a250b00780771c3a362d1a6504f990d

General

Target

ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Size

3.6MB
MD5

ca4c3e4533934bc68a775d0938da965c
SHA1

6fb18588180fd96ea619a0cb03346fd0fe3ea775
SHA256

0e678cdb82e5f69f6116cf47cc452ff27a250b00780771c3a362d1a6504f990d
SHA512

6c24a5dca921eabfb7b464444afa5663991679eadb2916739e95ee3a545610ea35453929db56732bff66a6b8c088d95704c1d9e925169dd51324759999fdc0dd
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAAbMZuxbXZROAxf:yDqPoBhz1aRxcSUDk36SAiMZiJf

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3262) 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 1 IoCs

pid	Process
2916	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

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	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-ee-f7-63-5a-8c\WpadDecision = "0"	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D8BD60F7-1AD8-4EDF-837F-D745E471F852}\WpadDecision = "0"	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-ee-f7-63-5a-8c	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D8BD60F7-1AD8-4EDF-837F-D745E471F852}	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D8BD60F7-1AD8-4EDF-837F-D745E471F852}\3a-ee-f7-63-5a-8c	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-ee-f7-63-5a-8c\WpadDecisionReason = "1"	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D8BD60F7-1AD8-4EDF-837F-D745E471F852}\WpadDecisionReason = "1"	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-ee-f7-63-5a-8c\WpadDecisionTime = c09e9c5aa0fada01	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f003a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D8BD60F7-1AD8-4EDF-837F-D745E471F852}\WpadDecisionTime = c09e9c5aa0fada01	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D8BD60F7-1AD8-4EDF-837F-D745E471F852}\WpadNetworkName = "Network 3"	ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2340
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2916

C:\Users\Admin\AppData\Local\Temp\ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\ca4c3e4533934bc68a775d0938da965c_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2932

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
00967080ef722a9e344e05e6d75618a1

SHA1
843b13e7c578409fa1ebb9605947241848fbe6ac

SHA256
49c701ce5acf8ec4539ec5b6ca2f875b52a230b46c2a6e925975ffbe8342983f

SHA512
a246419e168b54da0dd8cfa5cd45ac57a9aeb9904f722440bf7a0bd3529dbbd1ab65753ebd889229bffce5dc99e7ef953505fd81cf67a8458732f39b648b66c7

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