wannacry | a69cc37a02486869e05f37fd1d21b9e9b09a23953f211324f65233eafea63318

General

Target

e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Size

3.6MB
MD5

e618154dd077e7f6eba7b2f99b5d26d8
SHA1

edf654a75445e6467e388c95131c52f5199245ad
SHA256

a69cc37a02486869e05f37fd1d21b9e9b09a23953f211324f65233eafea63318
SHA512

e78722994167a0bd6be1c0a0666b5df4461a2db61b4e98b8608841329bdd28d7a2c96d12cbe46cce99dbf31fa58ccc2f048e6aa64f6e56b515897846077d69f9
SSDEEP

49152:2nAQqMSPbcBVQej/vRdhnvxJM0H9PAMEcaEau3R8yAH1plAHI:yDqPoBhzZdhvxWa9P593R8yAVp2HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3150) 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
1820	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	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	e618154dd077e7f6eba7b2f99b5d26d8_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	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3BF74805-04D3-4F3E-87F3-5E07B44670BC}\7e-54-02-e0-b6-49	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3BF74805-04D3-4F3E-87F3-5E07B44670BC}\WpadDecisionTime = b0a94878be08db01	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7e-54-02-e0-b6-49	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3BF74805-04D3-4F3E-87F3-5E07B44670BC}	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7e-54-02-e0-b6-49\WpadDecisionTime = b0a94878be08db01	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7e-54-02-e0-b6-49\WpadDecision = "0"	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3BF74805-04D3-4F3E-87F3-5E07B44670BC}\WpadNetworkName = "Network 3"	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b5000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3BF74805-04D3-4F3E-87F3-5E07B44670BC}\WpadDecisionReason = "1"	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3BF74805-04D3-4F3E-87F3-5E07B44670BC}\WpadDecision = "0"	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7e-54-02-e0-b6-49\WpadDecisionReason = "1"	e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1352
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1820

C:\Users\Admin\AppData\Local\Temp\e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\e618154dd077e7f6eba7b2f99b5d26d8_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1764

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
3e53b45374a8503e63f2df3e88e613c2

SHA1
0c2b7394dca0334e23530a3a932930509995f3e8

SHA256
80f6575930da58ab38fe7bffdc8baf807c7cf68cd03e9ed2699c3d0ce6ad708e

SHA512
8c15cdd7114bbf82abc84790ac676e4804ba5f10f5b1b92cde8cbeb7cbdd45dc1316eaa91af218dae81620a40afaf336e89a1d06de42a591fe7d4b1b5f499366

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