wannacry | 001ea567a43fb9d692bb6818268bf71f9c14eb6a76deca777a4f6bc8320f61bb

General

Target

2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Size

5.0MB
MD5

f5dbf918166a7e6dac039257ae18f5ca
SHA1

427b8374283dc21fd7dc38678371c03c3ae4a78c
SHA256

001ea567a43fb9d692bb6818268bf71f9c14eb6a76deca777a4f6bc8320f61bb
SHA512

a27cbac3fa52280ef445e45f1a3f167bccecdf45b4400dde36d9369b50e07ef4aeef81f951b13e702dbb9915d0d6de6828637904c248c7d36d7d4e632937eaa3
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhkubyrn59Z8yAVp2H:yDqPe1Cxcxk3ZAEouOrnV8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3231) 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
2716	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	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_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	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A4AF0AA2-2A2B-4B0C-B50B-B0FD238B4E17}\WpadDecisionReason = "1"	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A4AF0AA2-2A2B-4B0C-B50B-B0FD238B4E17}\WpadDecisionTime = d0536101e51bdb01	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A4AF0AA2-2A2B-4B0C-B50B-B0FD238B4E17}\WpadDecision = "0"	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A4AF0AA2-2A2B-4B0C-B50B-B0FD238B4E17}\f6-78-64-b0-c3-f7	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f6-78-64-b0-c3-f7\WpadDecision = "0"	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A4AF0AA2-2A2B-4B0C-B50B-B0FD238B4E17}\WpadNetworkName = "Network 3"	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f6-78-64-b0-c3-f7	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f6-78-64-b0-c3-f7\WpadDecisionTime = d0536101e51bdb01	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f6-78-64-b0-c3-f7\WpadDecisionReason = "1"	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00d6000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A4AF0AA2-2A2B-4B0C-B50B-B0FD238B4E17}	2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2132
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2716

C:\Users\Admin\AppData\Local\Temp\2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-11_f5dbf918166a7e6dac039257ae18f5ca_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3028

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
24e4900e5990ff8ebeb9ee002cbf2d4f

SHA1
f15cd9ee42bb9a3ebdf393f16add2a30061de9b0

SHA256
1ab8dfb869467aad544a70b4b810703317282b817b9c326c8f2f3f831ff346d2

SHA512
70e8d0f5639f6bef8d4664ac075132cf62412a17e8b8ffdaea324ab5b52db020f4b6f5496e230ed13e036499c19226da16d6a37f7b4f8b0c77982643349b5906

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Analysis

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