wannacry | 72365c4e88e9f461f930becfceb13c09901ad5fb51e96c08174357d855819710

Resubmissions

23-09-2024 08:02

240923-jw8jmszdrm 10

23-09-2024 07:55

240923-jr3slazdkl 10

Analysis

max time kernel
150s
max time network
150s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
23-09-2024 08:02

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General

Target

2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Size

3.6MB
MD5

407ae9c5b340c881ea1f32f283422057
SHA1

37dbd712c948a1c1a545347297bb7677234fc259
SHA256

72365c4e88e9f461f930becfceb13c09901ad5fb51e96c08174357d855819710
SHA512

5df17c4dccc178b2313a6365218dfdb8c916fb6dce8f2729209949d8565629da1f96b8a8c1e98d1656d837a327d7bf8ac4558ab2c4eeac1dacfa93831e194df2
SSDEEP

49152:2nAQqMSPbcBVQej/OANR2Qo6SAARdhnv:yDqPoBhzOyR236SAEdhv

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3288) 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
1104	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 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\counters2.dat	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-23_407ae9c5b340c881ea1f32f283422057_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	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe

Modifies data under HKEY_USERS 8 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3152
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1104

C:\Users\Admin\AppData\Local\Temp\2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4672

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

System Location Discovery

T1614

System Language Discovery

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
1e1c669222be96ed02afe2a77ca77bdd

SHA1
701665ac3ab80b76a815cefd433906e0d19de787

SHA256
e2933f0d81d2f6844fd7cf87120e3b608604c6769288dd562041a0d763882e60

SHA512
2b55034c2380cc5d55a12dc267953c24c11b71154c5c02ccbbfe5768b67c3b9b883934bc70457050bda7e1b59734941fb38a87d24aa959a46fee2c829ce7319c

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