wannacry | f1547be8357c61e87519139121270b482c2f48201b2a0f5b4566021c532532ab

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-10-2024 09:53

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General

Target

2024-10-03_52a932ee7598b2695ff3a24c3c2e6775_wannacry.exe
Size

5.0MB
MD5

52a932ee7598b2695ff3a24c3c2e6775
SHA1

4c4bb429bb0f67a60c0d4f78b538a82769c481c1
SHA256

f1547be8357c61e87519139121270b482c2f48201b2a0f5b4566021c532532ab
SHA512

e320a0931754e64c1249e704a318a362facbffe8a3cbd2bd846af841b3a9f70a713d0b1afebf327bea9f3907225efc7c66e622c3b5098d9d0355b02b932208d1
SSDEEP

24576:VbLgdeQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLKz6626TtA0p+9XEk:VnjQqMSPbcBVQej/1INRmAH

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3188) 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
1856	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	2024-10-03_52a932ee7598b2695ff3a24c3c2e6775_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-03_52a932ee7598b2695ff3a24c3c2e6775_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	2024-10-03_52a932ee7598b2695ff3a24c3c2e6775_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-03_52a932ee7598b2695ff3a24c3c2e6775_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-03_52a932ee7598b2695ff3a24c3c2e6775_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-03_52a932ee7598b2695ff3a24c3c2e6775_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-03_52a932ee7598b2695ff3a24c3c2e6775_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2564
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1856

C:\Users\Admin\AppData\Local\Temp\2024-10-03_52a932ee7598b2695ff3a24c3c2e6775_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-03_52a932ee7598b2695ff3a24c3c2e6775_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2348

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
14af082ee7d8c03a793c597ae95883c4

SHA1
293f19ec918ac920c661a7c088fff6bd70993c5c

SHA256
00e8a794846cb1efd5cc2e1c83d50de966a26e1b80df3b98ffe508e1e4abcc1d

SHA512
c5f16d57b24b74b1362109a82b08ff418abce7b221ba0e0a062d1471fd338097af18443c3cc01a06a6114ad1618b90567ba0f4d4dbe857f69b034e2028712663

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