wannacry | 873c4aaf54cc1b14160f2d133430a886a62061f0635f71f0e41173f2622f33c7

General

Target

2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Size

3.6MB
MD5

561a62de632a4e3866a5d747d0989af9
SHA1

a6bea1a23a2bc8cfe08a8afdcfcb36c3e574b03b
SHA256

873c4aaf54cc1b14160f2d133430a886a62061f0635f71f0e41173f2622f33c7
SHA512

400ec7e624e78820a23f9592dc9e3c310c6e4fe5429efd304a95ede69e7ca63e123df15e8d55be6ff1d65622365f0d9fdd36e5318a9e9d94c65064834762d734
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQOe5c/bX:yDqPoBhz1aRxcSUDkFUc/

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 (3176) 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
2676	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	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-05_561a62de632a4e3866a5d747d0989af9_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	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ad000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{64D91AE0-125C-4A84-9914-B72DB76F209C}\WpadDecision = "0"	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{64D91AE0-125C-4A84-9914-B72DB76F209C}	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-5b-1c-ed-d1-27\WpadDecisionTime = 2001cdec682fdb01	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{64D91AE0-125C-4A84-9914-B72DB76F209C}\WpadDecisionTime = 2001cdec682fdb01	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{64D91AE0-125C-4A84-9914-B72DB76F209C}\WpadNetworkName = "Network 3"	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-5b-1c-ed-d1-27	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-5b-1c-ed-d1-27\WpadDecisionReason = "1"	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-5b-1c-ed-d1-27\WpadDecision = "0"	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{64D91AE0-125C-4A84-9914-B72DB76F209C}\WpadDecisionReason = "1"	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{64D91AE0-125C-4A84-9914-B72DB76F209C}\16-5b-1c-ed-d1-27	2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1508
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2676

C:\Users\Admin\AppData\Local\Temp\2024-11-05_561a62de632a4e3866a5d747d0989af9_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-05_561a62de632a4e3866a5d747d0989af9_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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
b5736369ca682472d74c29a4dbe16da4

SHA1
bdbdb06e249d8cd82c84abf1c4ac8b3bdb6dd3af

SHA256
c3216553b2d0230fa0eaa86c8128168de91bec9425aebe348181b5788b5c7e1f

SHA512
a95e95bd673e9c1c6ed1c1242400b318bc24e5394ef6e87e1d23840d6e0d5cfc0bac53e3b50d13cf5d878aed68192ea34fc671866b9ab3262b505ffcc090af4c

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Analysis

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