wannacry | dae9f37bfb8fbaae3aea7ad748ae8412394f0403bdc0cdcfb7bf13c0cbd4afe4

General

Target

2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Size

5.0MB
MD5

7f318a253467f6ddb7fe41c12aec56bb
SHA1

74d43173e212fe34ab02b6f836b4ef0d066e59de
SHA256

dae9f37bfb8fbaae3aea7ad748ae8412394f0403bdc0cdcfb7bf13c0cbd4afe4
SHA512

73c2107c545e4494478e4bceccd9e3b06519a7b506aa8a1702c9c26621010182ff2a1cca9ff8ccb036e7b982a554aa37e0a31a6a05173b647c49277706fec190
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0ktLFIv9N6ZGa:2nAQqMSPbcBV0BIv9N64a

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3252) 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
2160	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_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_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_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_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 = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-6c-14-43-3d-52\WpadDecision = "0"	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F1FBB6D6-7386-4B2E-81EF-600B50F76F2A}\WpadDecisionReason = "1"	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-6c-14-43-3d-52	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-6c-14-43-3d-52\WpadDecisionTime = 60d0a3295412db01	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F1FBB6D6-7386-4B2E-81EF-600B50F76F2A}	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F1FBB6D6-7386-4B2E-81EF-600B50F76F2A}\WpadDecisionTime = 60d0a3295412db01	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F1FBB6D6-7386-4B2E-81EF-600B50F76F2A}\WpadDecision = "0"	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00c4000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F1FBB6D6-7386-4B2E-81EF-600B50F76F2A}\WpadNetworkName = "Network 3"	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F1FBB6D6-7386-4B2E-81EF-600B50F76F2A}\da-6c-14-43-3d-52	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-6c-14-43-3d-52\WpadDecisionReason = "1"	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2412
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2160

C:\Users\Admin\AppData\Local\Temp\2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-29_7f318a253467f6ddb7fe41c12aec56bb_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2340

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
3dcde708cf94ba08942a6e09e4a92991

SHA1
01df71f4c25e5e00b78c91edd2ef31f16336709f

SHA256
d459107fc3c618c056ef655c72c71e06a2cb35b0717a8f25a3c336f98e09326e

SHA512
78459a519b23bdbe2ddb24533470ac38e062c46d24adcbab2b887ee8626887d5f2a8501a008dbacc836604a601371bb71869543f65ec283dcd9de20fc4f11e90

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Analysis

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