wannacry | 7017f99e75ed549860c22f2e3ca8b2eb217c8d9eadd30a9014f2e90c8dc8f2a3

General

Target

cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Size

3.6MB
MD5

cc534d777aa076b4529573fe4208cdf9
SHA1

c460672303b4a80b56fc437e784acbcfab6462f0
SHA256

7017f99e75ed549860c22f2e3ca8b2eb217c8d9eadd30a9014f2e90c8dc8f2a3
SHA512

d7b133292783fb6430da0fb8a229098c3fb68733bc63b440ded204090c1cb05e240e0598563e7b66c8a987715cca348cfa5009e58c046024fc6bedf21c24e89d
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SAEdhvxWa9P593Rlo:XDqPe1Cxcxk3ZAEUadzRl

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3262) 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
2572	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	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	cc534d777aa076b4529573fe4208cdf9_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	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8044FB9C-8CB9-4143-8B9F-753782AE3360}\8a-a5-e3-3b-a5-d9	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8a-a5-e3-3b-a5-d9\WpadDecision = "0"	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ee000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8044FB9C-8CB9-4143-8B9F-753782AE3360}\WpadDecision = "0"	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8a-a5-e3-3b-a5-d9\WpadDecisionTime = 801acbb66afbda01	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8044FB9C-8CB9-4143-8B9F-753782AE3360}	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8a-a5-e3-3b-a5-d9	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8044FB9C-8CB9-4143-8B9F-753782AE3360}\WpadDecisionTime = 801acbb66afbda01	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8044FB9C-8CB9-4143-8B9F-753782AE3360}\WpadNetworkName = "Network 3"	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8a-a5-e3-3b-a5-d9\WpadDecisionReason = "1"	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8044FB9C-8CB9-4143-8B9F-753782AE3360}\WpadDecisionReason = "1"	cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:656
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2572

C:\Users\Admin\AppData\Local\Temp\cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\cc534d777aa076b4529573fe4208cdf9_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2996

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
4f90e7acf48c37176e08ea8956b58a87

SHA1
b695ee9a7c62f5efc979c1a237c2865e18c62b96

SHA256
5b469def37a18f23fd9bde2a30ac22882d670a36af9ac4088eb28a6129ecb719

SHA512
1afb495d8189622b2ad5aa4cadf67fa9161df9894fea13799b0e93568ed1f7dbc435daa8f82be59786532e0e6f41cfcef2c919bf4c1effe1cc189294404ecedf

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