wannacry | de2e14d9f3aafab489af1aa2183af784e737f1e84de418f5411538e7996da1eb

General

Target

bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Size

3.6MB
MD5

bd31e3f4d2ad39f4e1d210c66750893c
SHA1

adb996c7274561d921b7835bcdec3688897b5130
SHA256

de2e14d9f3aafab489af1aa2183af784e737f1e84de418f5411538e7996da1eb
SHA512

2a68d2be1b691c7819f22bed4884d6c1c2879a8556fda5138738956403e9c1278b680a9a54bfbc1549c7534cff75275b146674e30bb0124ed9b2078da3fa970c
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhYxWa9P5f3R8yAVp2HI:yDqPe1Cxcxk3ZAEHadRR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3279) 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

Processes:

tasksche.exe

pid process

2688 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
2688	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

Processes:

bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe

description ioc process

File created C:\WINDOWS\tasksche.exe bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B2F4262-CB4C-4E77-AE73-FF4AF6C4CB49}\WpadNetworkName = "Network 3"	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-60-47-c0-5e-a2	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B2F4262-CB4C-4E77-AE73-FF4AF6C4CB49}\b2-60-47-c0-5e-a2	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f017f000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-60-47-c0-5e-a2\WpadDecisionTime = c0b954a416c2da01	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B2F4262-CB4C-4E77-AE73-FF4AF6C4CB49}\WpadDecisionReason = "1"	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B2F4262-CB4C-4E77-AE73-FF4AF6C4CB49}\WpadDecision = "0"	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-60-47-c0-5e-a2\WpadDecisionReason = "1"	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-60-47-c0-5e-a2\WpadDecision = "0"	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B2F4262-CB4C-4E77-AE73-FF4AF6C4CB49}	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B2F4262-CB4C-4E77-AE73-FF4AF6C4CB49}\WpadDecisionTime = c0b954a416c2da01	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
PID:1176

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2688

C:\Users\Admin\AppData\Local\Temp\bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\bd31e3f4d2ad39f4e1d210c66750893c_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:1900

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
8740c0ac578de79b88bdc75451653ffc

SHA1
9d237404f16b85d947e45eac288ce484925f604c

SHA256
91eed7ddba55966668788af27217a3273c9fcf02ea71d4e127057369539c09fd

SHA512
a2240071c97f5adc96e16bea37f7e835ffe5264ce98ab2f5ac9dd921c04612520812450d01866c6bf66c75d5277dc9b8eef9287a7aaaed974011b5efd412331c

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