wannacry | d7209f8d6fd9fa9c2a76a8ff779fbb643e23fbf253ed011d141e21c793915a81

General

Target

2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Size

3.6MB
MD5

a4aa759f827c0050e7b0c13ac4cc3169
SHA1

55f53528de945c99d4699372446d5da17965354c
SHA256

d7209f8d6fd9fa9c2a76a8ff779fbb643e23fbf253ed011d141e21c793915a81
SHA512

1a1851ec22f47093cc0e315ad5ba7955d8ab245c335d26d356731a794a61b6ede34b49288403d8de50aa6763622d3015db95eb5d9c592d1bf4917e5854871f48
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SAEdhvxWa9P593LAVp2q:XDqPe1Cxcxk3ZAEUadzLc4q

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3189) 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
1076	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	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_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	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A6BD06A0-EAFB-408A-9EB5-35752C26CA46}\WpadDecisionTime = 70ecdd995a1cdb01	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-1a-6c-1c-cf-0f\WpadDecision = "0"	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A6BD06A0-EAFB-408A-9EB5-35752C26CA46}\WpadNetworkName = "Network 3"	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-1a-6c-1c-cf-0f	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-1a-6c-1c-cf-0f\WpadDecisionTime = 70ecdd995a1cdb01	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0064000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A6BD06A0-EAFB-408A-9EB5-35752C26CA46}\WpadDecisionReason = "1"	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-1a-6c-1c-cf-0f\WpadDecisionReason = "1"	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A6BD06A0-EAFB-408A-9EB5-35752C26CA46}	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A6BD06A0-EAFB-408A-9EB5-35752C26CA46}\e6-1a-6c-1c-cf-0f	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A6BD06A0-EAFB-408A-9EB5-35752C26CA46}\WpadDecision = "0"	2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2424
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1076

C:\Users\Admin\AppData\Local\Temp\2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_a4aa759f827c0050e7b0c13ac4cc3169_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2144

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
5ad1ea6ca4c844a7be162bb218a5c610

SHA1
a56f8dcf14f03485d68df8456e373f8f209bd42d

SHA256
4f418fa2d23be76712a0ba2a95c2ec7269bace3647272b819a98c159280905e9

SHA512
4a5990ced726cf1d78250f5201265bf339f6d5340ea11c5b0d599ee867179c56fd27340268feadea0156d6d4913df4401ff251561370f149d46b6a90d32169ec

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Analysis

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