wannacry | e75dd5cd1277b7a6bbd706f52e6c3155d500dbcfeab62660cdf2557e0087f65d

General

Target

2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Size

5.0MB
MD5

1934eda553c9ba5e54a99625ae1fa21e
SHA1

01085d9f347c427dacbf1efece32e592f0303cf3
SHA256

e75dd5cd1277b7a6bbd706f52e6c3155d500dbcfeab62660cdf2557e0087f65d
SHA512

807a9ea6850e6f1603ebf29941ae7ac98a979e563db18feea6882574ebb894cf17621b237d763103cf49dac13d51dc921bef1e11a11374cdd59c3b01c58efa1e
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P5y3R8yAVp2H:yDqPe1Cxcxk3ZAEUadiR8yc4H

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 (3097) 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
2792	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	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_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	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_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\52-b1-84-85-c3-31\WpadDecisionReason = "1"	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3FA1D44D-6954-487E-946E-2CFB988A7337}\WpadDecision = "0"	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3FA1D44D-6954-487E-946E-2CFB988A7337}	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3FA1D44D-6954-487E-946E-2CFB988A7337}\WpadNetworkName = "Network 3"	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3FA1D44D-6954-487E-946E-2CFB988A7337}\52-b1-84-85-c3-31	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3FA1D44D-6954-487E-946E-2CFB988A7337}\WpadDecisionReason = "1"	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-b1-84-85-c3-31\WpadDecisionTime = 203b1117fc2adb01	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-b1-84-85-c3-31\WpadDecision = "0"	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0167000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-b1-84-85-c3-31	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3FA1D44D-6954-487E-946E-2CFB988A7337}\WpadDecisionTime = 203b1117fc2adb01	2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2196
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2792

C:\Users\Admin\AppData\Local\Temp\2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-30_1934eda553c9ba5e54a99625ae1fa21e_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2892

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
8a708a7958653a52b38001b9cccaf370

SHA1
799e5398a02e89d2814657bd48163740354cd026

SHA256
0c0130ac7cfe08e0b95a4860b06d8c2fac0cd6c5726c6d4ea480f142cab20be6

SHA512
59fb5f8841710836baa0401a7e806b9b66188514b901e82b7c8b32c76706c4f7c4087fda722c59b4e5c0123a3f060c406b14103217847b17d61c46142fd27d3b

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