wannacry | 63960eecc3675f7a7a9316536c88b8e02d471e2d426bbaf40fbf4febd4634135

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
22-08-2024 07:36

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General

Target

2024-08-22_4deba8b5bbf03115112bf7495164adb1_wannacry.exe
Size

5.0MB
MD5

4deba8b5bbf03115112bf7495164adb1
SHA1

be3fe33395910140e5d2fbe7f1e1acc0417139e4
SHA256

63960eecc3675f7a7a9316536c88b8e02d471e2d426bbaf40fbf4febd4634135
SHA512

5c78f4c60e523c4cc2518bcfa6f0b2770baa5c870713fc12fe39070d32e8c902f40c2815ef105e230e32bfc8de5320902b45b99d3d6d13a53da4f65383731a72
SSDEEP

49152:VnjQqMSPbcBVQej/1IdKne+TSqTdX1HkQo6SAARdhnvxJM0H9PAMEc:Z8qPoBhz1AKecSUDk36SAEdhvxWa9P5

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3279) 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
2620	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	2024-08-22_4deba8b5bbf03115112bf7495164adb1_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-22_4deba8b5bbf03115112bf7495164adb1_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	2024-08-22_4deba8b5bbf03115112bf7495164adb1_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-22_4deba8b5bbf03115112bf7495164adb1_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-22_4deba8b5bbf03115112bf7495164adb1_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-22_4deba8b5bbf03115112bf7495164adb1_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-22_4deba8b5bbf03115112bf7495164adb1_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2476
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2620

C:\Users\Admin\AppData\Local\Temp\2024-08-22_4deba8b5bbf03115112bf7495164adb1_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-22_4deba8b5bbf03115112bf7495164adb1_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2284

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
a052f367a06b7bdb8946333e43af7e29

SHA1
eec8eda7b8f407a23585675d3ff71ae44f55d90f

SHA256
a70200b1ceb9581b33a82400657c641a40d1c317a935ba0fd62b73de0cdf0ac8

SHA512
1f132e43d013fd851484acf1d757373861a7f5e12c1fcd669bb16ea3af4f594497d094b98ac577a72c735a0bd0089484ea25426e14c1add904248aa1d54c1714

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