wannacry | 994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2

General

Target

994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Size

3.6MB
MD5

47ed66a6733483ebca7e162526f017d4
SHA1

a4c2f79d4ede54991cee839c818a95235aa559ae
SHA256

994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2
SHA512

da39795afe0ef0d982b2dd89f9613ccfe7a54083ed368fc62500de5ff514882d9e0f9094b7848898d81a6a6094f404a8b308ad86be0f32b0d9693ab74172cef3
SSDEEP

98304:XDqPoBhzyk36SAEdhvxWa9P593R8yAVp2HI:XDqPeyk3ZAEUadzR8yc4HI

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 (2040) 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
2588	tasksche.exe

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	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.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	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-e1-7b-b6-2a-f9\WpadDecisionReason = "1"	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-e1-7b-b6-2a-f9\WpadDecision = "0"	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ae000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B78D000-BAFF-4D3B-A464-EC180CD474F1}\WpadDecisionTime = c0fcd219f96bdb01	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B78D000-BAFF-4D3B-A464-EC180CD474F1}\26-e1-7b-b6-2a-f9	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B78D000-BAFF-4D3B-A464-EC180CD474F1}\WpadDecisionReason = "1"	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B78D000-BAFF-4D3B-A464-EC180CD474F1}\WpadNetworkName = "Network 3"	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-e1-7b-b6-2a-f9\WpadDecisionTime = c0fcd219f96bdb01	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B78D000-BAFF-4D3B-A464-EC180CD474F1}	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B78D000-BAFF-4D3B-A464-EC180CD474F1}\WpadDecision = "0"	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-e1-7b-b6-2a-f9	994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe

C:\Users\Admin\AppData\Local\Temp\994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
"C:\Users\Admin\AppData\Local\Temp\994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2392
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2588

C:\Users\Admin\AppData\Local\Temp\994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe
C:\Users\Admin\AppData\Local\Temp\994b20191840f8a3be8be101963f701ae89fdd0c998796e205afd042dbe9b4d2.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

1

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
a556cc99d7a52801e97a0f3c02d61f87

SHA1
2c2a8ab0adddc307eb2cc35e62dc1496794d3942

SHA256
c157dacd4ea2a1c46494a4bbc8d6835de32d6cf9577a4b0206d9aa5e3c95ed63

SHA512
336ec1d020451f426a04aaec2af51c1e455a174d0f400e9c487f9f75314757f974daea360dd2076a49c0c0f21596626902395ad88766e8c53de396938c2ad397

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Analysis

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