wannacry | fb28e1be4d1830fbaf0af32987812fb154e630a2476d2c422ec55c93f1a6ab45

General

Target

2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Size

3.6MB
MD5

2d199e67675969f290f383f68a16689f
SHA1

7193b18922f9b1d9faa3d6f35775eb1bf1cb71ba
SHA256

fb28e1be4d1830fbaf0af32987812fb154e630a2476d2c422ec55c93f1a6ab45
SHA512

3bed0a7825b1de67b4a5beb2a01280db0447305e941435dadb33186f71dcd8f680cfccbcdf33db92e8fa13d4e13790502a637c8ddcd4c772cc2aa38b907c42b6
SSDEEP

98304:yDqPoBhyRxcSUDkLdhgWa9P593R8yAVp2HI:yDqPTxcxkLtadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3212) 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
1952	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	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-30_2d199e67675969f290f383f68a16689f_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	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{48BE3D07-CE27-44FD-83B0-B520ADC97E7F}	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-e9-62-78-c7-6c	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{48BE3D07-CE27-44FD-83B0-B520ADC97E7F}\8e-e9-62-78-c7-6c	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00eb000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{48BE3D07-CE27-44FD-83B0-B520ADC97E7F}\WpadDecision = "0"	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{48BE3D07-CE27-44FD-83B0-B520ADC97E7F}\WpadDecisionTime = 8077f53a9213db01	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{48BE3D07-CE27-44FD-83B0-B520ADC97E7F}\WpadNetworkName = "Network 3"	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-e9-62-78-c7-6c\WpadDecisionReason = "1"	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{48BE3D07-CE27-44FD-83B0-B520ADC97E7F}\WpadDecisionReason = "1"	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-e9-62-78-c7-6c\WpadDecisionTime = 8077f53a9213db01	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-e9-62-78-c7-6c\WpadDecision = "0"	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2416
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1952

C:\Users\Admin\AppData\Local\Temp\2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-30_2d199e67675969f290f383f68a16689f_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2908

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
7d66de95a7171aaeec101380159301fe

SHA1
37f17e01de15e7b1295c971a7a2cb08af49ea34c

SHA256
54827f4391907da04dacc4091dd7fb6fb5e86e246b4ed059154b90601aac27c7

SHA512
c630676c15166ee09df13f6734157635a6712cc7621bf4f155259bef6839d955a9917c086f6453cd1688296ad0e48216a5bfb8d4b25366f4ef768d596a95bf73

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Analysis

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