wannacry | 8a25adc3269517904c641edaa2fc61266470c4805c795b410a319425cdcc8030

General

Target

2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Size

3.6MB
MD5

58952ce013e51eaabadd4bf9f5981801
SHA1

6005d50cd4746a12c4032d6ccc92c86a0813ef90
SHA256

8a25adc3269517904c641edaa2fc61266470c4805c795b410a319425cdcc8030
SHA512

57d690f1577c3fe03b6ee0d6ab77bae0418b7ef67cfd218802a690c2e5c670d8535f5bef90a1d2bfe34cc56aec295ee6248e72ba714cb7a3b87890f7e73104e4
SSDEEP

49152:2nAQqMSPbcBVQejXgwuqzgX8knK4JKARyPHRieT:yDqPoBhb

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3058) 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

Processes:

tasksche.exe

pid process

2580 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

pid	process
2580	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f013f000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AC3EB598-80B5-4567-A834-A2A57EF8954C}	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AC3EB598-80B5-4567-A834-A2A57EF8954C}\WpadDecisionTime = 20b65f1c5379da01	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AC3EB598-80B5-4567-A834-A2A57EF8954C}\WpadNetworkName = "Network 3"	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-97-51-aa-a3-f8	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-97-51-aa-a3-f8\WpadDecision = "0"	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AC3EB598-80B5-4567-A834-A2A57EF8954C}\WpadDecision = "0"	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-97-51-aa-a3-f8\WpadDecisionReason = "1"	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-97-51-aa-a3-f8\WpadDecisionTime = 20b65f1c5379da01	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AC3EB598-80B5-4567-A834-A2A57EF8954C}\WpadDecisionReason = "1"	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AC3EB598-80B5-4567-A834-A2A57EF8954C}\86-97-51-aa-a3-f8	2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:1688

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2580

C:\Users\Admin\AppData\Local\Temp\2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-03-18_58952ce013e51eaabadd4bf9f5981801_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2980

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
5abdbad3fd2758eda36ed265a282e999

SHA1
25400f87bc2f0b61c15261ecc11e31545c72dd62

SHA256
2e61c2042a887aff57a42ef0d5f344a24fba9f14a9efdaca5ba953e6315e44c8

SHA512
bc9451aa197193afb6d0afc6074d8da6e5e170bac557556ea147b38f78f7a9970bbcd02b531f14babac52b4f3897f53f0bc8b8621506114b2e1c23da3abf5349

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