wannacry | 10f11a389f3bc20e9a7123820a6affd7fe354e9fe016a653f1d6151f4236c8cc

General

Target

2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Size

3.6MB
MD5

0099cccd9edee63a16401de6ada30188
SHA1

337fae1a1df732a03fdf36b8086722029552802d
SHA256

10f11a389f3bc20e9a7123820a6affd7fe354e9fe016a653f1d6151f4236c8cc
SHA512

4d6a908a03f279de051a972342ddc7cf731c4bd73f350b4368c8c462b44f7f344312c856f94baf7fe2ea7ce7cddd238f6f6d751161ffd056528ba753e0b38b39
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P59UctAVp2HI:yDqPe1Cxcxk3ZAEUad9c4HI

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 (3298) 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
2848	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	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-15_0099cccd9edee63a16401de6ada30188_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	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C67AA0F0-EE31-46F3-9DBA-4EB2F6C482DE}	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C67AA0F0-EE31-46F3-9DBA-4EB2F6C482DE}\WpadDecisionTime = 70b104586567db01	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\76-30-05-36-96-d8	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C67AA0F0-EE31-46F3-9DBA-4EB2F6C482DE}\WpadDecision = "0"	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C67AA0F0-EE31-46F3-9DBA-4EB2F6C482DE}\WpadNetworkName = "Network 3"	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C67AA0F0-EE31-46F3-9DBA-4EB2F6C482DE}\76-30-05-36-96-d8	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\76-30-05-36-96-d8\WpadDecisionReason = "1"	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\76-30-05-36-96-d8\WpadDecisionTime = 70b104586567db01	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\76-30-05-36-96-d8\WpadDecision = "0"	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0174000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C67AA0F0-EE31-46F3-9DBA-4EB2F6C482DE}\WpadDecisionReason = "1"	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2448
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2848

C:\Users\Admin\AppData\Local\Temp\2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-15_0099cccd9edee63a16401de6ada30188_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2952

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
53630114dbc51910879f968d0148abdb

SHA1
e897138a0f0266d0d0e29e03f8816d08b483054d

SHA256
a10c30f76c602083956bdc991486ea598b20b72e395106b39ac14434827688d2

SHA512
7cb1ff56e009743c9574ae39034c880e40e0202b17d20ff5dc7cb923103c97428aa8b877c84a729b5f0b47f20cc087816be8eecaf38cd40f475d1a9f1227e769

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Analysis

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