wannacry | c8a7800561daa664cb7aae74fafcb9d776e5d0f0dd181c0af31fa729403a8251

General

Target

c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Size

3.6MB
MD5

c3c5ffe9ad07c3526a1b0a39fc921a6d
SHA1

50cf274511aa8e88d0fa190163908841bac6b500
SHA256

c8a7800561daa664cb7aae74fafcb9d776e5d0f0dd181c0af31fa729403a8251
SHA512

4dabeaa3b4e95213a6a489129c384612e8412e29f49ed17f4adbdcb2180dd4139d21a09a6c48d8212d27d7172ea21465cbb891b6aff19ea5744c5ef28db99396
SSDEEP

49152:2nAQqMSPbcBVL/5AMEcaEau3R8yAH1plAHI:yDqPoBd5593R8yAVp2HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3350) 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
2396	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	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	c3c5ffe9ad07c3526a1b0a39fc921a6d_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	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0197000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{037A4A68-ED10-4779-B6EE-7852093F915E}\WpadDecisionTime = 20c3afe8f5f7da01	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{037A4A68-ED10-4779-B6EE-7852093F915E}\WpadNetworkName = "Network 3"	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-f5-38-63-87-7a\WpadDecisionTime = 20c3afe8f5f7da01	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{037A4A68-ED10-4779-B6EE-7852093F915E}\WpadDecisionReason = "1"	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-f5-38-63-87-7a	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{037A4A68-ED10-4779-B6EE-7852093F915E}\ee-f5-38-63-87-7a	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{037A4A68-ED10-4779-B6EE-7852093F915E}	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{037A4A68-ED10-4779-B6EE-7852093F915E}\WpadDecision = "0"	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-f5-38-63-87-7a\WpadDecisionReason = "1"	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-f5-38-63-87-7a\WpadDecision = "0"	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2416
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2396

C:\Users\Admin\AppData\Local\Temp\c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\c3c5ffe9ad07c3526a1b0a39fc921a6d_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2776

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
ecc5c3e62e02437d549e97748e69e96e

SHA1
df81c8d97534ce651e3bf0d21cba9c7c83583b1f

SHA256
16a2ac4cc25fab34f106a92a42e18fb5ae33e35fdbe3506d9e4a2b0a4078b161

SHA512
9e508887a771ae156ed8e7c201563fc28e79246b159480e0ffc71378f01bece7d02c5355bddd5bda444d171238caf41705be7ab64acdf3b630ffe4a2d1641dbc

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Analysis

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