wannacry | 2e7803bbe43b5be307330495c11c205ed003fd64ef6efbab825a82120c84fea4

General

Target

cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Size

3.6MB
MD5

cebd6188fb9b5842e2869f331db397d2
SHA1

a61ac4e24ac4a9e6e730c9f18c8a9866517ade51
SHA256

2e7803bbe43b5be307330495c11c205ed003fd64ef6efbab825a82120c84fea4
SHA512

2fe650af4a4debd19939176c980c6b797192e70da6c5ed8b4e1960fe71db79c2a796743a0df64cb6eb78b30e5eccabf3ec8b9e8605c8dfa1629413d8de303ea4
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTt9PAMEcaEau3R8yAH1plAHI:yDqPoBhz1aRxcSUt9P593R8yAVp2HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (2949) 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
2576	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	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	cebd6188fb9b5842e2869f331db397d2_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	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1703934C-BB3D-4660-A426-7C1A9ECA713B}	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1703934C-BB3D-4660-A426-7C1A9ECA713B}\3e-37-ac-c9-90-6b	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-37-ac-c9-90-6b\WpadDecision = "0"	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-37-ac-c9-90-6b\WpadDecisionTime = 606ae4171b00db01	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1703934C-BB3D-4660-A426-7C1A9ECA713B}\WpadDecisionReason = "1"	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1703934C-BB3D-4660-A426-7C1A9ECA713B}\WpadDecisionTime = 606ae4171b00db01	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-37-ac-c9-90-6b\WpadDecisionReason = "1"	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-37-ac-c9-90-6b	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f006f000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1703934C-BB3D-4660-A426-7C1A9ECA713B}\WpadDecision = "0"	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1703934C-BB3D-4660-A426-7C1A9ECA713B}\WpadNetworkName = "Network 3"	cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1036
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2576

C:\Users\Admin\AppData\Local\Temp\cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\cebd6188fb9b5842e2869f331db397d2_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2844

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
5fab4d72d07c6675ee45652403ea5442

SHA1
0e0223edefbd8c9414cca69937117d0bf5981a0f

SHA256
9c404861ca5932fcd14dbd50a9971a11dbdadf67c6d03ca66c5e159daa6616ef

SHA512
d6c37eec55ada27f70cebc26d0c1af27240564bb8a540cd1beabe8f7f24420bdcd32d62843bbfa3a28f44fe4873c65d48923fcf0b1f0b17f28a8c5e32ab4b1d2

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