wannacry | b1f5fce1c46ae131d32fa917922057c6568e9b76732a6ca77f04d08a5144bd66

General

Target

2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Size

5.0MB
MD5

da13447d749aad01337366d517d2f601
SHA1

d70a7d9059f3c7c00acea145fd0b2c9af50be15e
SHA256

b1f5fce1c46ae131d32fa917922057c6568e9b76732a6ca77f04d08a5144bd66
SHA512

09a33b74997b355fcd99ed8009cf48ccca88f2d164f7c199516c6207e84fe1013df35e7dc5260d1e32bf398c61aae3f3bd81f6391850feb11ae19b3f47dea263
SSDEEP

49152:XnAQyOmtJgfJN8Tou+TSqTdX1HkQo6SAARdhnvxJM0H9PAMEcaEau3:XDyz/ToucSUDk36SAEdhvxWa9P593

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3185) 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
2884	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_da13447d749aad01337366d517d2f601_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-29_da13447d749aad01337366d517d2f601_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_da13447d749aad01337366d517d2f601_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-29_da13447d749aad01337366d517d2f601_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\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5E873AE7-AAFD-4933-A723-564B0657B038}\WpadNetworkName = "Network 3"	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-ca-8c-1d-5e-f7\WpadDecisionTime = f01a1feb5512db01	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5E873AE7-AAFD-4933-A723-564B0657B038}	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5E873AE7-AAFD-4933-A723-564B0657B038}\WpadDecision = "0"	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-ca-8c-1d-5e-f7\WpadDecisionReason = "1"	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5E873AE7-AAFD-4933-A723-564B0657B038}\WpadDecisionTime = f01a1feb5512db01	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-ca-8c-1d-5e-f7	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5E873AE7-AAFD-4933-A723-564B0657B038}\b6-ca-8c-1d-5e-f7	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-ca-8c-1d-5e-f7\WpadDecision = "0"	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5E873AE7-AAFD-4933-A723-564B0657B038}\WpadDecisionReason = "1"	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b9000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1972
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2884

C:\Users\Admin\AppData\Local\Temp\2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-29_da13447d749aad01337366d517d2f601_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2708

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
8de4f4fa3773ea30ce165058f000c458

SHA1
93286650d76524250838130877f11a0be7abb0ef

SHA256
a16c7bd92ecaf64ca986621ce06ad1c3aefa7b229a3118991434be20d1b9bad1

SHA512
07d1337861355f79c65e58eadc7cb8c1a0a4b116c6f211b1cb61019b56b9a9021f9ee12394bc56939967286553e85b5a1190b3b35becb33e251ce57eada61b7f

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Analysis

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