wannacry | 7c445534a57d1b29a88ac2a2c518e2e54c282d1c2c626917b994943d68764605

General

Target

2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Size

3.6MB
MD5

4042dbc8f0fa33e970459a6e53b6773e
SHA1

46866d7c274cb87403eb74df92115ac48b47a41a
SHA256

7c445534a57d1b29a88ac2a2c518e2e54c282d1c2c626917b994943d68764605
SHA512

87002468e79c5c88900bc0046c6ee1baca11f05b2609418d44a29751f53c7b74b6f40e344c7183a58c1534327244e30ab212843bcd674542fa0bc61f3c02dec2
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P5938:yDqPe1Cxcxk3ZAEUadz8

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3306) 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
1484	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_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_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_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{214CAB7A-4DA3-4C73-B6D3-2AC4F5E681A7}	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{214CAB7A-4DA3-4C73-B6D3-2AC4F5E681A7}\5e-38-ca-86-df-bf	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{214CAB7A-4DA3-4C73-B6D3-2AC4F5E681A7}\WpadDecisionTime = b0d2bda0fe10db01	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{214CAB7A-4DA3-4C73-B6D3-2AC4F5E681A7}\WpadNetworkName = "Network 3"	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{214CAB7A-4DA3-4C73-B6D3-2AC4F5E681A7}\WpadDecisionReason = "1"	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-38-ca-86-df-bf\WpadDecisionReason = "1"	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-38-ca-86-df-bf\WpadDecisionTime = b0d2bda0fe10db01	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-38-ca-86-df-bf\WpadDecision = "0"	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00a3000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{214CAB7A-4DA3-4C73-B6D3-2AC4F5E681A7}\WpadDecision = "0"	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-38-ca-86-df-bf	2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1764
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1484

C:\Users\Admin\AppData\Local\Temp\2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-27_4042dbc8f0fa33e970459a6e53b6773e_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2404

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
59c4d43b85ab448e60cd33bc840bb513

SHA1
45db77fb57ee401e2b8b9d0d65577b7c5f460e53

SHA256
3429e91c6d1e0b4937ba3968dcc3de0cf9c3d183e9e854c843e30449b2404bb6

SHA512
dfc74a6e482f099e9da7fe578320a9f5e8977ae2eb9ba5ca1d80114a8e61cb3f61c78c36d48070c9e9882f6388a166b6c823814e13f2011e5e14686fe692ac86

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Analysis

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