wannacry | 1bf86b3bde4e64227251edb1731ea4115e74200223636282654209dc8c30a756

General

Target

d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Size

3.6MB
MD5

d74a0fafca14d5c21731185d9f998830
SHA1

a04ed6074bd7dd0586fe12b7f5700cdf560fd302
SHA256

1bf86b3bde4e64227251edb1731ea4115e74200223636282654209dc8c30a756
SHA512

2eb50c6f112dfbac9c4f8aca02f2fbb683c20db5a32f1c616236a31e229a08614788fa04e8c07d537a306125a67b0a6818dbf9b2fa71aff1ad86e1a4bd9ea1ad
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAOxWa9P593R8yAVp2HI:yDqPe1Cxcxk3ZABadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3256) 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
2192	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	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	d74a0fafca14d5c21731185d9f998830_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	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5E873AE7-AAFD-4933-A723-564B0657B038}\WpadDecisionTime = c0191ea71203db01	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5E873AE7-AAFD-4933-A723-564B0657B038}\WpadDecision = "0"	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-ca-8c-1d-5e-f7\WpadDecisionTime = c0191ea71203db01	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-ca-8c-1d-5e-f7\WpadDecision = "0"	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5E873AE7-AAFD-4933-A723-564B0657B038}\WpadNetworkName = "Network 3"	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-ca-8c-1d-5e-f7	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-ca-8c-1d-5e-f7\WpadDecisionReason = "1"	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5E873AE7-AAFD-4933-A723-564B0657B038}\b6-ca-8c-1d-5e-f7	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b9000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5E873AE7-AAFD-4933-A723-564B0657B038}	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5E873AE7-AAFD-4933-A723-564B0657B038}\WpadDecisionReason = "1"	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3052
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2192

C:\Users\Admin\AppData\Local\Temp\d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\d74a0fafca14d5c21731185d9f998830_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2840

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
3d2d1c3b7ba39543af5d35270c146e95

SHA1
c5cbf6d3648c50635a42f340c7164070970fb66f

SHA256
a5794d147dff0f4df44348c2f999b6cde9bbb44aa29049c4944143cfbde85ab2

SHA512
f152c021482014e83460b04cceffc4ce6ed78dbca8d06d92512e60fc8ac02f2b0390b9485f36a0364dfbbe34bdd33103776552ad72cdbacbd503d90f61f861af

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Analysis

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