wannacry | f656e50d00e6b8ed40f9b99e02392b735679fc2de8ed6084c9c914ae01300726

General

Target

c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Size

3.6MB
MD5

c1e63bab950aa51d7b01b19d31883096
SHA1

5670f727cb96e277a78ffe3648cf4ed8f97d9e0b
SHA256

f656e50d00e6b8ed40f9b99e02392b735679fc2de8ed6084c9c914ae01300726
SHA512

b1f910bc7f63b9b617429aa99344aaa7bf607bd9fee28a877ef42bbb0fafb4327ca6ce8728c0e0616855c95863767a36ccbd984e90c90a4b19884b5906750a62
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLKz66quYAMEcpcL7nEaut/f:2nAQqMSPbcBVQej/1INRBAMEcaEau3N

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3328) 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
2248	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	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	c1e63bab950aa51d7b01b19d31883096_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	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EE3C1ABF-B4A1-4F24-9AB7-982ACD7CB1C0}\WpadDecisionReason = "1"	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-62-88-26-4b-0a	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-62-88-26-4b-0a\WpadDecisionReason = "1"	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-62-88-26-4b-0a\WpadDecision = "0"	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EE3C1ABF-B4A1-4F24-9AB7-982ACD7CB1C0}	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EE3C1ABF-B4A1-4F24-9AB7-982ACD7CB1C0}\de-62-88-26-4b-0a	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EE3C1ABF-B4A1-4F24-9AB7-982ACD7CB1C0}\WpadDecision = "0"	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EE3C1ABF-B4A1-4F24-9AB7-982ACD7CB1C0}\WpadNetworkName = "Network 3"	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-62-88-26-4b-0a\WpadDecisionTime = 6092e0f14df7da01	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EE3C1ABF-B4A1-4F24-9AB7-982ACD7CB1C0}\WpadDecisionTime = 6092e0f14df7da01	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f008b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2460
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2248

C:\Users\Admin\AppData\Local\Temp\c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\c1e63bab950aa51d7b01b19d31883096_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2500

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
64c3fa0f8c186e06ce5ae059331e5aaf

SHA1
b192c0283c5f8a15970d6bc4e5bac73bfb7ee84e

SHA256
37296f32bbfda264ba5521f93b548346e5b504c494a330652fb2ca29db61808d

SHA512
4fef70f23c29ecc27cce1af24c8c4adb86acd0d2a76a256753fe55813103638c7daa8baca9d2f53e57c8f2b140b2a2bc7d98423332c1bf8994fc8b188741d07b

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Analysis

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