wannacry | fcb9fc855e483f404c2386bcebe5c1a48e705fe5a85a750b716c95aea682ed85

General

Target

2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Size

3.6MB
MD5

556803ff2c89eb4954ddba4f62d93baf
SHA1

458044060d035b25c51bea4a9abfde21b77da4e2
SHA256

fcb9fc855e483f404c2386bcebe5c1a48e705fe5a85a750b716c95aea682ed85
SHA512

db1e74b4ce14a98c80919673a96505fdc2e90f36f974251c3e1675438a14994c7ae057fc92af3ee0638d5fade91334d20aaa6ab5742fe4319a3f98a9cdd45494
SSDEEP

49152:2nAQqMSPbcBVQej/1INRAqxJM0H9PAMEcaEau3R8yAH1plAHI:yDqPoBhz1aRAqxWa9P593R8yAVp2HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3288) 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
3000	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	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.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	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.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"	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1EAC05C4-E3A0-4562-AE33-B51979D4EF2E}\fe-36-61-07-cf-2c	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-36-61-07-cf-2c\WpadDecisionTime = c062ce597517db01	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-36-61-07-cf-2c\WpadDecisionReason = "1"	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f018a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1EAC05C4-E3A0-4562-AE33-B51979D4EF2E}	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1EAC05C4-E3A0-4562-AE33-B51979D4EF2E}\WpadDecisionReason = "1"	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1EAC05C4-E3A0-4562-AE33-B51979D4EF2E}\WpadDecisionTime = c062ce597517db01	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1EAC05C4-E3A0-4562-AE33-B51979D4EF2E}\WpadDecision = "0"	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1EAC05C4-E3A0-4562-AE33-B51979D4EF2E}\WpadNetworkName = "Network 3"	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-36-61-07-cf-2c	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-36-61-07-cf-2c\WpadDecision = "0"	2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1868
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3000

C:\Users\Admin\AppData\Local\Temp\2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-05_556803ff2c89eb4954ddba4f62d93baf_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2176

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
7258b2886f930f6010ef7aa3e67a671b

SHA1
e21a6b4767ca5d55dc638724c88ba68c51522a17

SHA256
432b7984e7607980a4054d1f9d29a21cdfa855fc2ac346625f309f2f2a592518

SHA512
f0b8bfd1416d3153a42fc74002a025874e0c2623da70361dd53b0466ba8986572bb53210cbfe435bd599d9ac2fd606871dd8d29bd8416716d509765715f8c5d6

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