wannacry | 4641216ac5970ad74ae3d73cc81b430657a8c2cd4bb2637bd5a600153e2af56b

General

Target

2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Size

5.0MB
MD5

dd9faac1734f49e66f76397a2eb995ff
SHA1

0eaf09665b99951f67660e3a94bccdd285fcffa8
SHA256

4641216ac5970ad74ae3d73cc81b430657a8c2cd4bb2637bd5a600153e2af56b
SHA512

bc256348512e93e7a4130ff749ceb3f48267ad51d44a7e959c46ab16368d4b5d709a8ee15fb372ef5a2706676f3bfee55b9dd642a04a8ef055186ed3d723860d
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SAEdhvxWa9gtnXRUAeTKwz3Qqgbz:XDqPe1Cxcxk3ZAEUayXFaKwMt3

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3310) 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
2640	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	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_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\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00e3000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0AAC7CAB-7AAE-4D9E-87D0-C4C2DF82336C}\WpadDecisionTime = e02e712d4dc9da01	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-6b-c5-28-47-73\WpadDecisionTime = e02e712d4dc9da01	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-6b-c5-28-47-73\WpadDecision = "0"	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0AAC7CAB-7AAE-4D9E-87D0-C4C2DF82336C}	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0AAC7CAB-7AAE-4D9E-87D0-C4C2DF82336C}\WpadDecision = "0"	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0AAC7CAB-7AAE-4D9E-87D0-C4C2DF82336C}\22-6b-c5-28-47-73	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-6b-c5-28-47-73\WpadDecisionReason = "1"	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-6b-c5-28-47-73	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0AAC7CAB-7AAE-4D9E-87D0-C4C2DF82336C}\WpadDecisionReason = "1"	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0AAC7CAB-7AAE-4D9E-87D0-C4C2DF82336C}\WpadNetworkName = "Network 3"	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:2884
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2640

C:\Users\Admin\AppData\Local\Temp\2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-06-28_dd9faac1734f49e66f76397a2eb995ff_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:1856

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
5ea357f60a8e9f00330383b49b411abf

SHA1
b94918231b025cf02013a0e51c154bb36d2302eb

SHA256
4bb989e6f9cb5bdd31f7f557b5e3f54fd7430ee8738eb134f3704e03ed590da9

SHA512
072a91559bd809e86b716c3a66df00dc2ad5e4effdfbffeaac568c019e087c2a956d03f4b9eb0bb46546c061a0d443434f2919428df72ebe7bacc4fea6344834

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Analysis

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