wannacry | 2d7c6f5377196fbffd8c75f27003580b8d2eb729760e0b8b0e06a2016f3dc677

General

Target

2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Size

3.6MB
MD5

22558519ceaf8fc5807753153ba47aa9
SHA1

826735f4c9226a1ab2a090c71a8937573ddcdbc1
SHA256

2d7c6f5377196fbffd8c75f27003580b8d2eb729760e0b8b0e06a2016f3dc677
SHA512

e4fbf075862dff2c0fb5133661d0479d1200f9c161824e652bff8c50a23f4ecb7aaa3373f517366147ca40e8eb4148d96111ac5f3d22ebcc3dfab8adc2342255
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEpxWa9PG3R8yAVp2HI:yDqPe1Cxcxk3ZAEiadYR8yc4HI

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 (3283) 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
2072	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	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-05_22558519ceaf8fc5807753153ba47aa9_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	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42B21C9F-19A9-428F-8161-A7E3744F218E}	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42B21C9F-19A9-428F-8161-A7E3744F218E}\WpadNetworkName = "Network 3"	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00dd000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42B21C9F-19A9-428F-8161-A7E3744F218E}\WpadDecisionReason = "1"	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-18-c8-2e-b8-34	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-18-c8-2e-b8-34\WpadDecision = "0"	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42B21C9F-19A9-428F-8161-A7E3744F218E}\WpadDecision = "0"	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42B21C9F-19A9-428F-8161-A7E3744F218E}\72-18-c8-2e-b8-34	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-18-c8-2e-b8-34\WpadDecisionReason = "1"	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42B21C9F-19A9-428F-8161-A7E3744F218E}\WpadDecisionTime = 3087b55e575fdb01	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-18-c8-2e-b8-34\WpadDecisionTime = 3087b55e575fdb01	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1656
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2072

C:\Users\Admin\AppData\Local\Temp\2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-05_22558519ceaf8fc5807753153ba47aa9_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2840

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
308ba23b6aec3eae17caf03ef1f6c67a

SHA1
032648a5ac7ae134c0cbc1db606b439e4d9a9214

SHA256
3b667aa6e9fe8abc6e1856ed10960748043ef6cee8744162f9eb0c601a62ec6d

SHA512
2ba53cc6691be662e85d54291442182d622ef247c365f95eca6348c16790a7d80e133ca6a77938b6a08c4db13fa0bc8443856183949ee8f5440ab871371ba2c0

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Analysis

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