wannacry | 33ba228218c72190177f4cf91d8f0bb54b787f5d0b88f0145b90224a0cbd64fe

General

Target

2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Size

2.2MB
MD5

df6e782ef7a6ee2bd3c553bef4eb6ef6
SHA1

11613289ef9fa452b30367e14bfe5ca779f0c360
SHA256

33ba228218c72190177f4cf91d8f0bb54b787f5d0b88f0145b90224a0cbd64fe
SHA512

2b4714a222144d0eb48d1734323375d88f1cd84e08be83fa141db8cd37d744ee0fe96f145535d415257c3a5635dd891ae183adce6d3e009243eff3de3817870e
SSDEEP

24576:QbLgurikfEcQdhirYbcMNgef0QeQjG/D8pdhAd:QnVEhPbcBVQej/Mdh

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3166) 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
2560	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 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\H8MBZQNW.txt	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\H8MBZQNW.txt	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\TPAA3HZS.txt	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\TPAA3HZS.txt	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2772	2560	WerFault.exe	31

System Location Discovery: System Language Discovery 1 TTPs 3 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	tasksche.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-be-0b-22-a5-84	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB91B94E-CF2E-413F-860C-58A0285FC2B6}\ce-be-0b-22-a5-84	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-be-0b-22-a5-84\WpadDecision = "0"	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB91B94E-CF2E-413F-860C-58A0285FC2B6}\WpadDecisionTime = 901d41665c1cdb01	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB91B94E-CF2E-413F-860C-58A0285FC2B6}\WpadDecision = "0"	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB91B94E-CF2E-413F-860C-58A0285FC2B6}\WpadNetworkName = "Network 3"	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-be-0b-22-a5-84\WpadDecisionReason = "1"	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB91B94E-CF2E-413F-860C-58A0285FC2B6}\WpadDecisionReason = "1"	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0172000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB91B94E-CF2E-413F-860C-58A0285FC2B6}	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-be-0b-22-a5-84\WpadDecisionTime = 901d41665c1cdb01	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 2560	2104	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe	31
PID 2104 wrote to memory of 2560	2104	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe	31
PID 2104 wrote to memory of 2560	2104	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe	31
PID 2104 wrote to memory of 2560	2104	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe	31
PID 2104 wrote to memory of 2560	2104	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe	31
PID 2104 wrote to memory of 2560	2104	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe	31
PID 2104 wrote to memory of 2560	2104	2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe	31
PID 2560 wrote to memory of 2772	2560	tasksche.exe	32
PID 2560 wrote to memory of 2772	2560	tasksche.exe	32
PID 2560 wrote to memory of 2772	2560	tasksche.exe	32
PID 2560 wrote to memory of 2772	2560	tasksche.exe	32
PID 2560 wrote to memory of 2772	2560	tasksche.exe	32
PID 2560 wrote to memory of 2772	2560	tasksche.exe	32
PID 2560 wrote to memory of 2772	2560	tasksche.exe	32

C:\Users\Admin\AppData\Local\Temp\2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2104
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2560
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2560 -s 224
    3⤵
    - Program crash
    PID:2772

C:\Users\Admin\AppData\Local\Temp\2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_df6e782ef7a6ee2bd3c553bef4eb6ef6_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2680

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
2.0MB

MD5
faf780c7b2535b7537187852314a2258

SHA1
d1c9bf1aa3c04e364198a9510663aef3a822349e

SHA256
f9104411be846a760133af6a8830676b0571b0e865da717ff14bb0608a229c42

SHA512
94ffe3240750f7061359c861aaac75004a0ceef282c0f2c1234654d8f6d4dbd92f96c87e65cf716a678d9891a051a2409c739a4fd330b7536b917f76c2dd6a2a

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Analysis

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