wannacry | f1a82bc6fe5abec25db52046368f2c32a6704f217e647ee55bf49ae99d920911

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-12-2024 10:45

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General

Target

2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Size

5.0MB
MD5

1315c62530862889c46a9955b4db7553
SHA1

34ae2d8fcd85713e9efa8964d326e1f5497c69fa
SHA256

f1a82bc6fe5abec25db52046368f2c32a6704f217e647ee55bf49ae99d920911
SHA512

1990a59e0fb88de7143476b1a185213a083fe4e2c58c391311c8f82043b2027ac8126a46062aa5372636e8dcc85c723094f7e9f70cf9209e04f43d119516e4c8
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQ+ZROAx:XDqPoBhz1aRxcSUDkn

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3256) 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
4856	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 Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-20_1315c62530862889c46a9955b4db7553_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	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:4720
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:4856

C:\Users\Admin\AppData\Local\Temp\2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4940

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
07ed7f5c339a0e9e7ae77fba2216adb4

SHA1
2d5a0b47fcb90b16176e1621dda9ddef0f3bafd0

SHA256
8aeb112ae32a74f2604d3a9726818d7d8b4129bd82d57b6da274deff5c7341e3

SHA512
57ecb6b8f8e7693d152ca5a3e1a4c961fc1323d81612746e332ef840c1770c0437ff4c21ff9483ef4d5f8a75b259e81e2ea6fefb75ac75c93a274c61ebd817dd

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