wannacry | 71bc8c76b2382e03192d0289b37b2bc1881061516005576d5ca1e73757c62065

General

Target
2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Size 5.0MB
Sample240804-plm3vavepl
SHA256 71bc8c76b2382e03192d0289b37b2bc1881061516005576d5ca1e73757c62065
MD5 05f7a0b9dda7596f441a939b622c5ba1
SHA1 95b062f883c1fadbff1a119e0effb4cdb92b54d9
SHA512 453dee6e03b6da1f6283229abac5a14a3ab9887fef7c8b308f0e2a8376eca717dc3ab8cb0ec2d8ce3052b53f252e3601be709a3cff75b70652167ed5e58c28a2
SSDEEP 98304:oDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2H:oDqPe1Cxcxk3ZAEUadzR8yc4H
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3268) 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
2052	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	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_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	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-29-9b-e4-ff-4f\WpadDecisionTime = 80fc455c69e6da01	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{14346517-5B20-434F-BE19-787C40C815A3}\WpadDecisionTime = 80fc455c69e6da01	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-29-9b-e4-ff-4f\WpadDecision = "0"	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{14346517-5B20-434F-BE19-787C40C815A3}\WpadDecisionReason = "1"	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-29-9b-e4-ff-4f	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-29-9b-e4-ff-4f\WpadDecisionReason = "1"	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00c7000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{14346517-5B20-434F-BE19-787C40C815A3}	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{14346517-5B20-434F-BE19-787C40C815A3}\WpadDecision = "0"	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{14346517-5B20-434F-BE19-787C40C815A3}\WpadNetworkName = "Network 3"	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{14346517-5B20-434F-BE19-787C40C815A3}\d6-29-9b-e4-ff-4f	2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1596
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2052

C:\Users\Admin\AppData\Local\Temp\2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-04_05f7a0b9dda7596f441a939b622c5ba1_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2448

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

tasksche.exe

Path C:\Windows\tasksche.exe
Size 3.4MB
SHA256 2584e1521065e45ec3c17767c065429038fc6291c091097ea8b22c8a502c41dd
MD5 7f7ccaa16fb15eb1c7399d422f8363e8
SHA1 bd44d0ab543bf814d93b719c24e90d8dd7111234
SHA512 83e334b80de08903cfa9891a3fa349c1ece7e19f8e62b74a017512fa9a7989a0fd31929bf1fc13847bee04f2da3dacf6bc3f5ee58f0e4b9d495f4b9af12ed2b7
SSDEEP 98304:QqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2Hj:QqPe1Cxcxk3ZAEUadzR8yc4Hj
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1596-0-0x0000000000400000-0x0000000000A73000-memory.dmp

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memory/1596-6-0x0000000000400000-0x0000000000A73000-memory.dmp

Download

memory/2448-1-0x0000000000400000-0x0000000000A73000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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