wannacry | a1f59222072512ac0fa9e2be60e3fff9903b30ce774622adc37175e7cd036396

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-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 (3295) 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
1612	tasksche.exe
2264	tasksche.exe
2288	tasksche.exe

Loads dropped DLL 1 IoCs

pid	Process
1612	tasksche.exe

Modifies file permissions 1 TTPs 3 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1984	icacls.exe
3068	icacls.exe
1608	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 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	2024-12-07_f8adb09635e5e07e0080b5cf9866aca6_wannacry.exe

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	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	tasksche.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	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-07_f8adb09635e5e07e0080b5cf9866aca6_wannacry.exe

Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs

pid	Process
2264	tasksche.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 1612	2320	2024-12-07_f8adb09635e5e07e0080b5cf9866aca6_wannacry.exe	29
PID 2320 wrote to memory of 1612	2320	2024-12-07_f8adb09635e5e07e0080b5cf9866aca6_wannacry.exe	29
PID 2320 wrote to memory of 1612	2320	2024-12-07_f8adb09635e5e07e0080b5cf9866aca6_wannacry.exe	29
PID 2320 wrote to memory of 1612	2320	2024-12-07_f8adb09635e5e07e0080b5cf9866aca6_wannacry.exe	29
PID 328 wrote to memory of 2264	328	cmd.exe	31
PID 328 wrote to memory of 2264	328	cmd.exe	31
PID 328 wrote to memory of 2264	328	cmd.exe	31
PID 328 wrote to memory of 2264	328	cmd.exe	31
PID 2264 wrote to memory of 2292	2264	tasksche.exe	32
PID 2264 wrote to memory of 2292	2264	tasksche.exe	32
PID 2264 wrote to memory of 2292	2264	tasksche.exe	32
PID 2264 wrote to memory of 2292	2264	tasksche.exe	32
PID 2264 wrote to memory of 1984	2264	tasksche.exe	35
PID 2264 wrote to memory of 1984	2264	tasksche.exe	35
PID 2264 wrote to memory of 1984	2264	tasksche.exe	35
PID 2264 wrote to memory of 1984	2264	tasksche.exe	35
PID 1612 wrote to memory of 2288	1612	tasksche.exe	38
PID 1612 wrote to memory of 2288	1612	tasksche.exe	38
PID 1612 wrote to memory of 2288	1612	tasksche.exe	38
PID 1612 wrote to memory of 2288	1612	tasksche.exe	38
PID 2288 wrote to memory of 2868	2288	tasksche.exe	39
PID 2288 wrote to memory of 2868	2288	tasksche.exe	39
PID 2288 wrote to memory of 2868	2288	tasksche.exe	39
PID 2288 wrote to memory of 2868	2288	tasksche.exe	39
PID 2288 wrote to memory of 3068	2288	tasksche.exe	40
PID 2288 wrote to memory of 3068	2288	tasksche.exe	40
PID 2288 wrote to memory of 3068	2288	tasksche.exe	40
PID 2288 wrote to memory of 3068	2288	tasksche.exe	40
PID 1612 wrote to memory of 2312	1612	tasksche.exe	43
PID 1612 wrote to memory of 2312	1612	tasksche.exe	43
PID 1612 wrote to memory of 2312	1612	tasksche.exe	43
PID 1612 wrote to memory of 2312	1612	tasksche.exe	43
PID 1612 wrote to memory of 1608	1612	tasksche.exe	44
PID 1612 wrote to memory of 1608	1612	tasksche.exe	44
PID 1612 wrote to memory of 1608	1612	tasksche.exe	44
PID 1612 wrote to memory of 1608	1612	tasksche.exe	44

Views/modifies file attributes 1 TTPs 3 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2292	attrib.exe
2868	attrib.exe
2312	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:2320
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1612
- - C:\ProgramData\lxejlrdtqen920\tasksche.exe
    C:\ProgramData\lxejlrdtqen920\tasksche.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2288
  - - C:\Windows\SysWOW64\attrib.exe
      attrib +h .
      4⤵
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:2868
  - - C:\Windows\SysWOW64\icacls.exe
      icacls . /grant Everyone:F /T /C /Q
      4⤵
      Modifies file permissions
      System Location Discovery: System Language Discovery
      PID:3068
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h .
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2312
- - C:\Windows\SysWOW64\icacls.exe
    icacls . /grant Everyone:F /T /C /Q
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:1608

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⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2244

C:\Windows\system32\cmd.exe
cmd.exe /c "C:\ProgramData\lxejlrdtqen920\tasksche.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:328
- C:\ProgramData\lxejlrdtqen920\tasksche.exe
  C:\ProgramData\lxejlrdtqen920\tasksche.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: CmdExeWriteProcessMemorySpam
  - Suspicious use of WriteProcessMemory
  PID:2264
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h .
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2292
- - C:\Windows\SysWOW64\icacls.exe
    icacls . /grant Everyone:F /T /C /Q
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:1984

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/2244-1-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/2244-15-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/2320-0-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/2320-12-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download