wannacry | b94e2b8210c0894196a4675eb128abdc62b8eed3ef5ba0e042a2132431dfcc1d

General

Target

2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Size

3.6MB
MD5

4590523a8c2c32ee640401c73c1696c6
SHA1

6515d22dd5b2688bd027de9090a7b906cbf5f097
SHA256

b94e2b8210c0894196a4675eb128abdc62b8eed3ef5ba0e042a2132431dfcc1d
SHA512

b9359bf255e59d59de69db1ab357a0f3989a65c10bfa17c9f6e92ee5dc25047537df7856776ca3e55e1d24fb46eeff1d0c02b24062cb315066657085b7aa510f
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWal3R8y:yDqPe1Cxcxk3ZAEUaFR8y

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3160) 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
2716	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	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2887490-173B-4C47-93AD-84F28331AD22}	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-ed-17-64-d2-26	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2887490-173B-4C47-93AD-84F28331AD22}\4e-ed-17-64-d2-26	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-ed-17-64-d2-26\WpadDecision = "0"	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2887490-173B-4C47-93AD-84F28331AD22}\WpadDecision = "0"	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2887490-173B-4C47-93AD-84F28331AD22}\WpadNetworkName = "Network 3"	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-ed-17-64-d2-26\WpadDecisionReason = "1"	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00cb000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2887490-173B-4C47-93AD-84F28331AD22}\WpadDecisionReason = "1"	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2887490-173B-4C47-93AD-84F28331AD22}\WpadDecisionTime = 003007dab95dda01	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-ed-17-64-d2-26\WpadDecisionTime = 003007dab95dda01	2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:2220
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2716

C:\Users\Admin\AppData\Local\Temp\2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-02-12_4590523a8c2c32ee640401c73c1696c6_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2016

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
0a8b88ac25b3ded563ac69d134e6007c

SHA1
26d28d39c24a34c2e8557a5d0aaf506c8c4f7485

SHA256
fb46bbf92204fea506129c7b6e0c89c0980ceb9ddcfee02733976deb24a414cb

SHA512
09a40755f5c4da8a5fd2a15929255398575bafddfad8bba90fda5701ef3f5bc84015a8f90292c9c223f83f32745ef618e7ab7cd644b6789cb38a6da26ca23694

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Analysis

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