wannacry | 514984c4397ffd080e7c47214c24de7cd76b873076315d0552012a3d8243dad7

General

Target

2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Size

3.6MB
MD5

0aaaf0883fdd9fc768ba60a0431d3d66
SHA1

265772a2d93e2072fcc52e46b7d5466559df3bad
SHA256

514984c4397ffd080e7c47214c24de7cd76b873076315d0552012a3d8243dad7
SHA512

9564f005321d695b6d28c710e1232b51f4660421f6b6a89e073c680cebc24f1634b8c978b9bac3aceb9e9782f9377ce2242d3935d0cbe8c7b1fe642d9bd3c80b
SSDEEP

98304:yDqPoBe1aRxcSUDk36SAEdhvxWa9P593R8yAVp:yDqPF1Cxcxk3ZAEUadzR8yc

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3253) 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
2720	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	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_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	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_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\Content\CachePrefix	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-38-5d-a2-de-36\WpadDecisionReason = "1"	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00e5000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3247DA03-7135-4143-A1C6-E68F4A41A472}\WpadDecisionTime = 10f364f8fc10db01	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3247DA03-7135-4143-A1C6-E68F4A41A472}\WpadNetworkName = "Network 3"	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-38-5d-a2-de-36\WpadDecisionTime = 10f364f8fc10db01	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3247DA03-7135-4143-A1C6-E68F4A41A472}	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3247DA03-7135-4143-A1C6-E68F4A41A472}\WpadDecisionReason = "1"	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3247DA03-7135-4143-A1C6-E68F4A41A472}\WpadDecision = "0"	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-38-5d-a2-de-36	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3247DA03-7135-4143-A1C6-E68F4A41A472}\ce-38-5d-a2-de-36	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-38-5d-a2-de-36\WpadDecision = "0"	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1292
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2720

C:\Users\Admin\AppData\Local\Temp\2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-27_0aaaf0883fdd9fc768ba60a0431d3d66_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1808

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
e186279a80fffaa9d063f3cb8bb526b9

SHA1
125cf69ba5a2b834fb6d4a121fe63bd7fd10dd9e

SHA256
902f60193ee3f6166acdfff12d30909d8bb3a69cba7f1a600c81755af8f19033

SHA512
0e6a5ba2af8c5729c166801ac4c1ece071c0f56e2fe0aa281c68a7740612624ac2b1ad7ea157d23e85db5823984c92373b493bca0272cd6d415cf0909c492978

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Analysis

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