wannacry | a1f59222072512ac0fa9e2be60e3fff9903b30ce774622adc37175e7cd036396

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
07-12-2024 10:58

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General

Target

2024-12-07_f8adb09635e5e07e0080b5cf9866aca6_wannacry.exe
Size

5.0MB
MD5

f8adb09635e5e07e0080b5cf9866aca6
SHA1

fc4466269f240f855eac6a335fdd1b76c1af6d49
SHA256

a1f59222072512ac0fa9e2be60e3fff9903b30ce774622adc37175e7cd036396
SHA512

2e27fe312c0e1f2899c7e0b4d97c477f66307e835dff5f8ab362f701268fc104c3c5c1db46225ea010f65001818adbe43216fb01d71f975a3b2d00d5305c7ecb
SSDEEP

24576:nbLgdeQhID8kIqRYoAdNLKz6626M+vbOSSqTPVXmiHkQg6eX6SASk+RdhAdmv:nnjQS1INRx+TSqTdX1HkQo6SAARdhnv

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 (3378) 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
1316	tasksche.exe
3724	tasksche.exe
3200	tasksche.exe

Modifies file permissions 1 TTPs 3 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2220	icacls.exe
4900	icacls.exe
3536	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	2024-12-07_f8adb09635e5e07e0080b5cf9866aca6_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	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-07_f8adb09635e5e07e0080b5cf9866aca6_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	tasksche.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-07_f8adb09635e5e07e0080b5cf9866aca6_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 3196 wrote to memory of 1316	3196	2024-12-07_f8adb09635e5e07e0080b5cf9866aca6_wannacry.exe	84
PID 3196 wrote to memory of 1316	3196	2024-12-07_f8adb09635e5e07e0080b5cf9866aca6_wannacry.exe	84
PID 3196 wrote to memory of 1316	3196	2024-12-07_f8adb09635e5e07e0080b5cf9866aca6_wannacry.exe	84
PID 2040 wrote to memory of 3724	2040	cmd.exe	86
PID 2040 wrote to memory of 3724	2040	cmd.exe	86
PID 2040 wrote to memory of 3724	2040	cmd.exe	86
PID 3724 wrote to memory of 1076	3724	tasksche.exe	87
PID 3724 wrote to memory of 1076	3724	tasksche.exe	87
PID 3724 wrote to memory of 1076	3724	tasksche.exe	87
PID 3724 wrote to memory of 2220	3724	tasksche.exe	88
PID 3724 wrote to memory of 2220	3724	tasksche.exe	88
PID 3724 wrote to memory of 2220	3724	tasksche.exe	88
PID 1316 wrote to memory of 3200	1316	tasksche.exe	107
PID 1316 wrote to memory of 3200	1316	tasksche.exe	107
PID 1316 wrote to memory of 3200	1316	tasksche.exe	107
PID 3200 wrote to memory of 1936	3200	tasksche.exe	108
PID 3200 wrote to memory of 1936	3200	tasksche.exe	108
PID 3200 wrote to memory of 1936	3200	tasksche.exe	108
PID 3200 wrote to memory of 4900	3200	tasksche.exe	109
PID 3200 wrote to memory of 4900	3200	tasksche.exe	109
PID 3200 wrote to memory of 4900	3200	tasksche.exe	109
PID 1316 wrote to memory of 928	1316	tasksche.exe	112
PID 1316 wrote to memory of 928	1316	tasksche.exe	112
PID 1316 wrote to memory of 928	1316	tasksche.exe	112
PID 1316 wrote to memory of 3536	1316	tasksche.exe	113
PID 1316 wrote to memory of 3536	1316	tasksche.exe	113
PID 1316 wrote to memory of 3536	1316	tasksche.exe	113

Views/modifies file attributes 1 TTPs 3 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1076	attrib.exe
1936	attrib.exe
928	attrib.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-07_f8adb09635e5e07e0080b5cf9866aca6_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-07_f8adb09635e5e07e0080b5cf9866aca6_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3196
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1316
- - 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:3200
  - - C:\Windows\SysWOW64\attrib.exe
      attrib +h .
      4⤵
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:1936
  - - C:\Windows\SysWOW64\icacls.exe
      icacls . /grant Everyone:F /T /C /Q
      4⤵
      Modifies file permissions
      System Location Discovery: System Language Discovery
      PID:4900
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h .
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:928
- - C:\Windows\SysWOW64\icacls.exe
    icacls . /grant Everyone:F /T /C /Q
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:3536

C:\Users\Admin\AppData\Local\Temp\2024-12-07_f8adb09635e5e07e0080b5cf9866aca6_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-07_f8adb09635e5e07e0080b5cf9866aca6_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
PID:4776

C:\Windows\system32\cmd.exe
cmd.exe /c "C:\ProgramData\nzfbkoaczl750\tasksche.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2040
- 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:3724
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h .
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:1076
- - C:\Windows\SysWOW64\icacls.exe
    icacls . /grant Everyone:F /T /C /Q
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2220

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
6565f12e33a2180f0307d9d9308cb966

SHA1
8b9df1051510648869efe36ea2aeb3e0ef6c7a2f

SHA256
f14d849afa93240eb3abfe8bf41c7496e9fa2dffe5598b4d04296a0729c8f904

SHA512
aebab109711494e6cc6802d50e7d66e79df05c876722832f935275544df630eba01be5f16091a39bed173945435fcaf5d97e8be8ea137273f723a59f9741346f

Download Submit
memory/3196-0-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/3196-9-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/4776-11-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download