wannacry | 7a3b959ee85300426112e1154734979abacefb8d173c41e0dd570f0fc54a5946

General

Target

2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Size

3.6MB
MD5

8b35c56e162a96b3eabbdb67b578e212
SHA1

08ad69ff4f20313c2688ae9df81daf13cee1d77e
SHA256

7a3b959ee85300426112e1154734979abacefb8d173c41e0dd570f0fc54a5946
SHA512

cbb1167d74c7457de121992d0ae799c5b00c71fe04e1938a9304a55ef5d87e361470e18c800f07fda6c3084293f1f07408aa517366f9d11282c37f8dcf5e5dc9
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTB0418yAH1plAHI:yDqPoBhz1aRxcSUSU8yAVp2HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3328) 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
2828	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	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_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	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f01a4000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{33D616F7-3C99-47F9-92ED-62E5A43607E9}	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{33D616F7-3C99-47F9-92ED-62E5A43607E9}\WpadDecisionReason = "1"	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{33D616F7-3C99-47F9-92ED-62E5A43607E9}\32-8f-98-30-d1-45	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-8f-98-30-d1-45\WpadDecision = "0"	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-8f-98-30-d1-45\WpadDecisionTime = 20fe22f85e1cdb01	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{33D616F7-3C99-47F9-92ED-62E5A43607E9}\WpadDecisionTime = 20fe22f85e1cdb01	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{33D616F7-3C99-47F9-92ED-62E5A43607E9}\WpadDecision = "0"	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{33D616F7-3C99-47F9-92ED-62E5A43607E9}\WpadNetworkName = "Network 3"	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-8f-98-30-d1-45\WpadDecisionReason = "1"	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-8f-98-30-d1-45	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1908
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2828

C:\Users\Admin\AppData\Local\Temp\2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_8b35c56e162a96b3eabbdb67b578e212_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1876

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
78041e2e9434021dce446d61b778c52c

SHA1
bec7e74068492b0e5030d34d4b903fbee7d83ed7

SHA256
c8618e5b3e1b4888149613149965bde87b734769b3cfb50f3dd4d25b0d7c1e7a

SHA512
4aa5452d9f51958acc3835c1db988f628d3f4119c070cfa86761a608921cab01115b6c543472cb60f39a3e12c58f468d0827fd4ca95f76386b9ba589a9778e57

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Analysis

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