wannacry | 4d632d7dd2806ad482349ac76e483728c57336fd80dee9fe21474f56f71b6c3d

General

Target

9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Size

5.0MB
MD5

6976f29e458b1f7df01ccbbf37d4ac66
SHA1

38298d192f972e48473a642a92244c2d25973e2b
SHA256

9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244
SHA512

e1855082733e2b2aab13f3413cd0df588452ca3df2f2de9daf248d52073fa4ae194a6f6fb2d725501143df9700c217e31a5e17be043a3a4ecb7b5562d9297b54
SSDEEP

49152:QnpE/bcBVQej/1INRx+TSqTdX1HkQo6SAA:Qp4oBhz1aRxcSUDk36SA

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (4541) 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
2668	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\CP7SP3BV.txt	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\3WYPRLL5.txt	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\3WYPRLL5.txt	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\CP7SP3BV.txt	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
File created	C:\Windows\__tmp_rar_sfx_access_check_259446261	tasksche.exe
File created	C:\Windows\eee.exe	tasksche.exe

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	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CC97EDE3-23F0-4895-BA27-5356EEC845CA}\WpadDecision = "0"	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-22-e1-6d-74-b3\WpadDecisionReason = "1"	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-22-e1-6d-74-b3\WpadDecision = "0"	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CC97EDE3-23F0-4895-BA27-5356EEC845CA}\WpadDecisionReason = "1"	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CC97EDE3-23F0-4895-BA27-5356EEC845CA}\WpadNetworkName = "Network 3"	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CC97EDE3-23F0-4895-BA27-5356EEC845CA}	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CC97EDE3-23F0-4895-BA27-5356EEC845CA}\WpadDecisionTime = 200430f5fc04db01	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CC97EDE3-23F0-4895-BA27-5356EEC845CA}\16-22-e1-6d-74-b3	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ec000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-22-e1-6d-74-b3	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-22-e1-6d-74-b3\WpadDecisionTime = 200430f5fc04db01	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 2668	2372	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe	32
PID 2372 wrote to memory of 2668	2372	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe	32
PID 2372 wrote to memory of 2668	2372	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe	32
PID 2372 wrote to memory of 2668	2372	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe	32
PID 2372 wrote to memory of 2668	2372	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe	32
PID 2372 wrote to memory of 2668	2372	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe	32
PID 2372 wrote to memory of 2668	2372	9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe	32

C:\Users\Admin\AppData\Local\Temp\9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
"C:\Users\Admin\AppData\Local\Temp\9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2372
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:2668

C:\Users\Admin\AppData\Local\Temp\9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe
C:\Users\Admin\AppData\Local\Temp\9972b216c60b49496f23439c5db6cb6d2ec0ad9f91ea70d0ac59504214437244.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2948

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
2.0MB

MD5
b743893cc73069da0d5f2608f5c36558

SHA1
f556db68e026cbac961aa7bfe0fb2748ec458d2f

SHA256
cd505f5be9677f51f14d251bd1991ad3571de7a19dc81d651a88fe40f480f3af

SHA512
c84ec2128bdbd1d77c9ffc7cf053be9500253da5ea2654b1121b2c977810bc1ce43e647dad7e3485e25b988e1262e70425a9766579e2f646645d3faaa36bf877

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