wannacry | 9861c73665ed548893de757579566e761b9c6a7c780216377efffd140d240842

General

Target

2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Size

5.0MB
MD5

3c9ee5c9c41d9e4094cc59e51efccdf2
SHA1

9d1e7ae2f810e9da16ceafcc7c3b1ae26b68e9f3
SHA256

9861c73665ed548893de757579566e761b9c6a7c780216377efffd140d240842
SHA512

be4dd4356018d8484fc363a15cfaaa36e5c79019b90f7d328fefbb16e70b4e67c84d8fb64c76607a8dca8a9b4d569ab6621488cc18c25ce1912b06dfe97b462c
SSDEEP

49152:QnpcSPbcBVm2uvgyd7+KnT2becwT6DGMIBHuLZy:QpfoBtywKSbevWSdOLZ

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 (3299) 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
2512	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\Roaming\Microsoft\Windows\Cookies\1Y3EI3F7.txt	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\UYOXUBQ0.txt	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\UYOXUBQ0.txt	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\1Y3EI3F7.txt	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_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	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-87-14-80-e5-b6\WpadDecisionReason = "1"	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f009f000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{61FB18F4-1240-4F22-88E7-1947FD9CC3D5}\WpadDecisionTime = b0675647fa4adb01	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{61FB18F4-1240-4F22-88E7-1947FD9CC3D5}\WpadDecision = "0"	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{61FB18F4-1240-4F22-88E7-1947FD9CC3D5}\WpadDecisionReason = "1"	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{61FB18F4-1240-4F22-88E7-1947FD9CC3D5}	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{61FB18F4-1240-4F22-88E7-1947FD9CC3D5}\WpadNetworkName = "Network 3"	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{61FB18F4-1240-4F22-88E7-1947FD9CC3D5}\da-87-14-80-e5-b6	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-87-14-80-e5-b6\WpadDecision = "0"	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-87-14-80-e5-b6\WpadDecisionTime = b0675647fa4adb01	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-87-14-80-e5-b6	2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2352
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2512

C:\Users\Admin\AppData\Local\Temp\2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-10_3c9ee5c9c41d9e4094cc59e51efccdf2_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1800

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
36b5e4f91e6e46a7b16a7c195c9f6101

SHA1
a2b735ea2b9653cab59f2a859c4e5ba55077cf2c

SHA256
4d342d7a10a94c7d237c82cbeeee9b5a127835dd7984c277febaaf8bb9f09385

SHA512
6d26094b056eab0a46f1874588c4b26a0f5feffb21ae550131036314bcddd8dece63e060cf80639ede5a34803ccf6f15b5d3fb7523acb1e0b57f5f1966fa8a9c

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Analysis

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