wannacry | 09c4a99bb7df869dd08c1e530389d4c968332c7b66aea74c7d577ae1595698d3

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-11-2024 12:56

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General

Target

2024-11-30_502af25f02676a62996b8f0a79cd53bd_wannacry.exe
Size

5.0MB
MD5

502af25f02676a62996b8f0a79cd53bd
SHA1

e95d49e6f5426a011757a96a9c46b51412213d50
SHA256

09c4a99bb7df869dd08c1e530389d4c968332c7b66aea74c7d577ae1595698d3
SHA512

9e6ad8f9857b0f496f432db8d93038defdf1bfcd185e42df66043190236b9afd2a3e34fe54fac6c15ef3f603e05ee1360a8d31302f997d6cafbe8a452001b75b
SSDEEP

6144:FE9l9yNqIYVTH5DgSg8ajldktM0XXrs2QhMV9qb:FwbLgPluxQhMb

Score

10^/10

wannacry defense_evasion discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3300) 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 3 IoCs

pid	Process
1760	tasksche.exe
3804	tasksche.exe
4728	tasksche.exe

Modifies file permissions 1 TTPs 3 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2704	icacls.exe
3984	icacls.exe
1420	icacls.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
File and Directory Permissions Modification: Windows File and Directory Permissions Modification 1 TTPs
defense_evasion

Windows File and Directory Permissions Modification
T1222.001

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-30_502af25f02676a62996b8f0a79cd53bd_wannacry.exe

System Location Discovery: System Language Discovery 1 TTPs 11 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	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-30_502af25f02676a62996b8f0a79cd53bd_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-30_502af25f02676a62996b8f0a79cd53bd_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1088 wrote to memory of 1760	1088	2024-11-30_502af25f02676a62996b8f0a79cd53bd_wannacry.exe	84
PID 1088 wrote to memory of 1760	1088	2024-11-30_502af25f02676a62996b8f0a79cd53bd_wannacry.exe	84
PID 1088 wrote to memory of 1760	1088	2024-11-30_502af25f02676a62996b8f0a79cd53bd_wannacry.exe	84
PID 1592 wrote to memory of 3804	1592	cmd.exe	86
PID 1592 wrote to memory of 3804	1592	cmd.exe	86
PID 1592 wrote to memory of 3804	1592	cmd.exe	86
PID 3804 wrote to memory of 4820	3804	tasksche.exe	87
PID 3804 wrote to memory of 4820	3804	tasksche.exe	87
PID 3804 wrote to memory of 4820	3804	tasksche.exe	87
PID 3804 wrote to memory of 3984	3804	tasksche.exe	88
PID 3804 wrote to memory of 3984	3804	tasksche.exe	88
PID 3804 wrote to memory of 3984	3804	tasksche.exe	88
PID 1760 wrote to memory of 4728	1760	tasksche.exe	107
PID 1760 wrote to memory of 4728	1760	tasksche.exe	107
PID 1760 wrote to memory of 4728	1760	tasksche.exe	107
PID 4728 wrote to memory of 4524	4728	tasksche.exe	108
PID 4728 wrote to memory of 4524	4728	tasksche.exe	108
PID 4728 wrote to memory of 4524	4728	tasksche.exe	108
PID 4728 wrote to memory of 1420	4728	tasksche.exe	109
PID 4728 wrote to memory of 1420	4728	tasksche.exe	109
PID 4728 wrote to memory of 1420	4728	tasksche.exe	109
PID 1760 wrote to memory of 4872	1760	tasksche.exe	112
PID 1760 wrote to memory of 4872	1760	tasksche.exe	112
PID 1760 wrote to memory of 4872	1760	tasksche.exe	112
PID 1760 wrote to memory of 2704	1760	tasksche.exe	113
PID 1760 wrote to memory of 2704	1760	tasksche.exe	113
PID 1760 wrote to memory of 2704	1760	tasksche.exe	113

Views/modifies file attributes 1 TTPs 3 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4820	attrib.exe
4524	attrib.exe
4872	attrib.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-30_502af25f02676a62996b8f0a79cd53bd_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-30_502af25f02676a62996b8f0a79cd53bd_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1088
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1760
- - C:\ProgramData\nzfbkoaczl750\tasksche.exe
    C:\ProgramData\nzfbkoaczl750\tasksche.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4728
  - - C:\Windows\SysWOW64\attrib.exe
      attrib +h .
      4⤵
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:4524
  - - C:\Windows\SysWOW64\icacls.exe
      icacls . /grant Everyone:F /T /C /Q
      4⤵
      Modifies file permissions
      System Location Discovery: System Language Discovery
      PID:1420
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h .
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:4872
- - C:\Windows\SysWOW64\icacls.exe
    icacls . /grant Everyone:F /T /C /Q
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2704

C:\Users\Admin\AppData\Local\Temp\2024-11-30_502af25f02676a62996b8f0a79cd53bd_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-30_502af25f02676a62996b8f0a79cd53bd_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
PID:3612

C:\Windows\system32\cmd.exe
cmd.exe /c "C:\ProgramData\nzfbkoaczl750\tasksche.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1592
- C:\ProgramData\nzfbkoaczl750\tasksche.exe
  C:\ProgramData\nzfbkoaczl750\tasksche.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3804
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h .
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:4820
- - C:\Windows\SysWOW64\icacls.exe
    icacls . /grant Everyone:F /T /C /Q
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:3984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Windows File and Directory Permissions Modification

T1222.001

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

Network Service Discovery

T1046

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
a27cfbfad728fa5ec8e701a6f93cab26

SHA1
deba582c9c8f059590132395f987c2acf54e7a7f

SHA256
c0057fd3141966017014beb71fa2e31d84d3ddd2a9f20e3e6ee26df8165a531f

SHA512
8c095ccb3367903bc5498d0222ee537ef2bbd4f4204fe9a9a9babe2426d8a377240a15892e248e6e252bf3b229eecc8b1c960136988bf3398941e20a1e542b5d

Download Submit
memory/1088-0-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/1088-7-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/3612-4-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/3612-11-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download