wannacry | 078cb3fce7008fcd3b4fd9adc5fab5bcd78d417754eaa43a4d36de3f6cac0ef9

General

Target

2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Size

5.0MB
MD5

c1a70786817dc0b4209d5ed328e5f1e7
SHA1

9f3f2fc6c09a5560a96d46707aa94ade5bc65fd8
SHA256

078cb3fce7008fcd3b4fd9adc5fab5bcd78d417754eaa43a4d36de3f6cac0ef9
SHA512

ffb00dac76d24157d236eff615756f5af342c522ec5ccef847e83307618d19092ad4637e96a4559805bc3ad0463b143e3a16f7804dd6ba5b1b4b74854901b2da
SSDEEP

49152:2nAQqMSPbcBV/+TSqTdX1HkQo6SAARdhnvxJM0H9PAMEcaEau3R8:yDqPoBNcSUDk36SAEdhvxWa9P593R8

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3225) 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
2748	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	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_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	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ca000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-fd-e8-c0-db-13\WpadDecision = "0"	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{579454EC-2469-413F-A4BA-4A9F19D63ABB}\WpadDecision = "0"	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{579454EC-2469-413F-A4BA-4A9F19D63ABB}\WpadDecisionReason = "1"	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{579454EC-2469-413F-A4BA-4A9F19D63ABB}\WpadDecisionTime = a0982d825512db01	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{579454EC-2469-413F-A4BA-4A9F19D63ABB}\WpadNetworkName = "Network 3"	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-fd-e8-c0-db-13	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{579454EC-2469-413F-A4BA-4A9F19D63ABB}\5e-fd-e8-c0-db-13	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-fd-e8-c0-db-13\WpadDecisionReason = "1"	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{579454EC-2469-413F-A4BA-4A9F19D63ABB}	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-fd-e8-c0-db-13\WpadDecisionTime = a0982d825512db01	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2352
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2748

C:\Users\Admin\AppData\Local\Temp\2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-29_c1a70786817dc0b4209d5ed328e5f1e7_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2168

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
9ef55989015a7a79f8b908b432a7be45

SHA1
ce2df40c8fdc6596ded4d73df4e40305d005953d

SHA256
b3d2493523c790fb80c76f9a77512984ef5073a21b13b9e994a14940d97136a5

SHA512
8b2c1aeec9d20db1c6d95da380535386ee3e3bf8b3eddefb4f30bf9fea5a1ad0754b9f6d757409377737f4a38cced3e97240819f1da00adee60b3c7ed8fbd946

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