wannacry | 985208a1ec980dce931a232a06eabd6a95f4001d24e50d5c2c74b8255d6c36ff

General

Target

2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe
Size

5.0MB
MD5

ddd80730e267040be58501a11a140638
SHA1

45bda03bf3347344a2a5aa5e5f2bb0d8ecfe7ba9
SHA256

985208a1ec980dce931a232a06eabd6a95f4001d24e50d5c2c74b8255d6c36ff
SHA512

4ecaa66e07e633621a292cc7af397591dd9315b261b0cde4433cdaaa1bfe161a001284faeb3b507e18316f21f6d6a542d30d7ff937d7c8f3c36d61b8fcad2928
SSDEEP

24576:QbLguriIfEcQdIVUacMNgef0QeQjG/D8kIqRYoAdNLKz6626:QnpEKUacBVQej/1INR

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3208) 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
4108	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 Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\eee.exe	tasksche.exe
File created	C:\WINDOWS\tasksche.exe	2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe
File created	C:\Windows\__tmp_rar_sfx_access_check_240620281	tasksche.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe

Modifies data under HKEY_USERS 12 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P	2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History	2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4764 wrote to memory of 4108	4764	2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe	85
PID 4764 wrote to memory of 4108	4764	2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe	85
PID 4764 wrote to memory of 4108	4764	2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4764
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:4108

C:\Users\Admin\AppData\Local\Temp\2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-02_ddd80730e267040be58501a11a140638_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4808

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

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Downloads

C:\Windows\tasksche.exe

Filesize
2.0MB

MD5
7fec548e8e633215fc43dce779470686

SHA1
c42894cd6372f1eb0569ee140183f06046e5bbd6

SHA256
41aaadb58e4ac7ef226c734df7a8815e2cbcefdf143df894179ab66f3466c226

SHA512
8112b2fa938400a082402ce3ea51ef5a4a1c159f72e10ede176e916a97aec12c719292172f07d94ed3ea2609218371bd62024931a59d8b26e4cc90aeffe38d2c

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Analysis

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