wannacry | 5b004e212c5e936c249c8b9cd5b4864f0d5340e0dc94f9774db24d4c5e918553

General

Target

e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Size

3.6MB
MD5

e3bb6ee38af372c8bce4d6b6ec7b8a42
SHA1

bb76fb353e8ea16ac6e3be917419d5cb06a19087
SHA256

5b004e212c5e936c249c8b9cd5b4864f0d5340e0dc94f9774db24d4c5e918553
SHA512

d0b0572856ea1daa017caebcd0b979d369d6beea3e441b336a226bf95d6c4a0559ea4d8212d943dfe34487a0fdeae06dac17df74f7834805031821c447d6c24c
SSDEEP

49152:2nAQqMSPbcBV8nvxJM0H9PAMEcaEau3R8y:yDqPoBOvxWa9P593R8y

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3207) 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
2812	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	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	e3bb6ee38af372c8bce4d6b6ec7b8a42_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	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2977FCC-CD39-4F65-BC64-FD7272B86C6B}\WpadNetworkName = "Network 3"	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-3b-20-cc-81-66\WpadDecisionReason = "1"	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0160000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2977FCC-CD39-4F65-BC64-FD7272B86C6B}\WpadDecisionTime = 9067a16bd507db01	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2977FCC-CD39-4F65-BC64-FD7272B86C6B}\WpadDecision = "0"	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-3b-20-cc-81-66	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2977FCC-CD39-4F65-BC64-FD7272B86C6B}	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2977FCC-CD39-4F65-BC64-FD7272B86C6B}\WpadDecisionReason = "1"	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-3b-20-cc-81-66\WpadDecisionTime = 9067a16bd507db01	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-3b-20-cc-81-66\WpadDecision = "0"	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2977FCC-CD39-4F65-BC64-FD7272B86C6B}\96-3b-20-cc-81-66	e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2216
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2812

C:\Users\Admin\AppData\Local\Temp\e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\e3bb6ee38af372c8bce4d6b6ec7b8a42_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2684

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
2fc3e5f8042451280f688bee07159e7b

SHA1
c356dbcea501aad9911717e694f4659f77473880

SHA256
8b4a26d92e366182e1042727595b6dfaceb3d951f1ad675f796f6cd88d82d814

SHA512
bbbf333e5bc14a87835aba984370ee82759a24e0391592e1279037b3f2871eb6faf2f5683ac476170fcb620b181ffe15cec580a415e6ad93298186117e586a76

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Analysis

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