Overview

overview

10

Static

static

10

98cf388651...e3.exe

windows7_x64

10

98cf388651...e3.exe

windows10_x64

10

Analysis

  • max time kernel
    152s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    09-11-2020 20:17

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Report Analysis Logs

General

  • Target

    98cf38865117a3e333df1fb0a538b97f66fea568746fefb697e76ca8c686a3e3.exe

  • Size

    94KB

  • MD5

    339da8fcce98e2165a73e2f22e42b4ff

  • SHA1

    e06ae91d935d95db3cffaf168836b875cea541bf

  • SHA256

    98cf38865117a3e333df1fb0a538b97f66fea568746fefb697e76ca8c686a3e3

  • SHA512

    bc61737e3f2c547a193665106a482e4573e593551b27b3a6cdad6a3f8215146d71a90ecb763cac916dfbb55e9c5f5aa01c9887293fd5f2e14a795c26ccfbb2b3

Score
10/10
netwalkerpersistenceransomwarespyware

Malware Config

Extracted

Path

C:\A746E-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .a746e -- If for some reason you read this text before the encryption ended, this can be understood by the fact that the computer slows down, and your heart rate has increased due to the ability to turn it off, then we recommend that you move away from the computer and accept that you have been compromised, rebooting/shutdown will cause you to lose files without the possibility of recovery and even god will not be able to help you, it could be files on the network belonging to other users, sure you want to take that responsibility? -- Our encryption algorithms are very strong and your files are very well protected, you can't hope to recover them without our help. The only way to get your files back is to cooperate with us and get the decrypter program. Do not try to recover your files without a decrypt program, you may damage them and then they will be impossible to recover. We advise you to contact us as soon as possible, otherwise there is a possibility that your files will never be returned. For us this is just business and to prove to you our seriousness, we will decrypt you some files for free, but we will not wait for your letter for a long time, mail can be abused, we are moving on, hurry up with the decision. Сontact us: 1.sevenoneone@cock.li 2.kavariusing@tutanota.com Don't forget to include your code in the email: {code_62a85da8_a746e: p5pZPFZ5Xq4g3n0xX3v9o3tpMcW8liELko4/ot3XO8fNERv5Xl GhGn09Z0HXIcZRB5RvGIhSWPhkLi4KOEEfxZn/BHOcYjk7qF2o YlAHdoJVnYHTDBajfD5Um7p7CyDQ5VJFwDcGqTioF7QLrYkEI3 lu7z32G9GRpFeaY2R8BW5jryhFKgbRxkDSxT7X52EBZshlqWU6 pI3qnsQU//AEsz/NDdWfIDPoO0lt7GARdjK61jKJrjVTzY+RTL lwT9SZRXKyv5/bfKwnBjqbncr4pEkA2Xw=}
Emails

sevenoneone@cock.li

kavariusing@tutanota.com

Extracted

Path

C:\Users\Admin\Favorites\MSN Websites\A746E-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .a746e -- If for some reason you read this text before the encryption ended, this can be understood by the fact that the computer slows down, and your heart rate has increased due to the ability to turn it off, then we recommend that you move away from the computer and accept that you have been compromised, rebooting/shutdown will cause you to lose files without the possibility of recovery and even god will not be able to help you, it could be files on the network belonging to other users, sure you want to take that responsibility? -- Our encryption algorithms are very strong and your files are very well protected, you can't hope to recover them without our help. The only way to get your files back is to cooperate with us and get the decrypter program. Do not try to recover your files without a decrypt program, you may damage them and then they will be impossible to recover. We advise you to contact us as soon as possible, otherwise there is a possibility that your files will never be returned. For us this is just business and to prove to you our seriousness, we will decrypt you some files for free, but we will not wait for your letter for a long time, mail can be abused, we are moving on, hurry up with the decision. Сontact us: 1.sevenoneone@cock.li 2.kavariusing@tutanota.com Don't forget to include your code in the email: {code_62a85da8_a746e: p5pZPFZ5Xq4g3n0xX3v9o3tpMcW8liELko4/ot3XO8fNERv5Xl GhGn09Z0HXIcZRB5RvGIhSWPhkLi4KOEEfxZn/BHOcYjk7qF2o YlAHdoJVnYHTDBajfD5Um7p7CyDQ5VJFwDcGqTioF7QLrYkEI3 lu7z32G9GRpFeaY2R8BW5jryhFKgbRxkDSxT7X52EBZshlqWU6 pI3qnsQU//AEsz/NDdWfIDPoO0lt7GARdjK61jKJrjVTzY+RTL lwT9SZRXKyv5/bfKwnBjqbncr4pEkA2Xw=}Hi! Your files are encrypted. All encrypted files for this computer has extension: .a746e -- If for some reason you read this text before the encryption ended, this can be understood by the fact that the computer slows down, and your heart rate has increased due to the ability to turn it off, then we recommend that you move away from the computer and accept that you have been compromised, rebooting/shutdown will cause you to lose files without the possibility of recovery and even god will not be able to help you, it could be files on the network belonging to other users, sure you want to take that responsibility? -- Our encryption algorithms are very strong and your files are very well protected, you can't hope to recover them without our help. The only way to get your files back is to cooperate with us and get the decrypter program. Do not try to recover your files without a decrypt program, you may damage them and then they will be impossible to recover. We advise you to contact us as soon as possible, otherwise there is a possibility that your files will never be returned. For us this is just business and to prove to you our seriousness, we will decrypt you some files for free, but we will not wait for your letter for a long time, mail can be abused, we are moving on, hurry up with the decision. Сontact us: 1.sevenoneone@cock.li 2.kavariusing@tutanota.com Don't forget to include your code in the email: {code_62a85da8_a746e: p5pZPFZ5Xq4g3n0xX3v9o3tpMcW8liELko4/ot3XO8fNERv5Xl GhGn09Z0HXIcZRB5RvGIhSWPhkLi4KOEEfxZn/BHOcYjk7qF2o YlAHdoJVnYHTDBajfD5Um7p7CyDQ5VJFwDcGqTioF7QLrYkEI3 lu7z32G9GRpFeaY2R8BW5jryhFKgbRxkDSxT7X52EBZshlqWU6 pI3qnsQU//AEsz/NDdWfIDPoO0lt7GARdjK61jKJrjVTzY+RTL lwT9SZRXKyv5/bfKwnBjqbncr4pEkA2Xw=}Hi! Your files are encrypted. All encrypted files for this computer has extension: .a746e -- If for some reason you read this text before the encryption ended, this can be understood by the fact that the computer slows down, and your heart rate has increased due to the ability to turn it off, then we recommend that you move away from the computer and accept that you have been compromised, rebooting/shutdown will cause you to lose files without the possibility of recovery and even god will not be able to help you, it could be files on the network belonging to other users, sure you want to take that responsibility? -- Our encryption algorithms are very strong and your files are very well protected, you can't hope to recover them without our help. The only way to get your files back is to cooperate with us and get the decrypter program. Do not try to recover your files without a decrypt program, you may damage them and then they will be impossible to recover. We advise you to contact us as soon as possible, otherwise there is a possibility that your files will never be returned. For us this is just business and to prove to you our seriousness, we will decrypt you some files for free, but we will not wait for your letter for a long time, mail can be abused, we are moving on, hurry up with the decision. Сontact us: 1.sevenoneone@cock.li 2.kavariusing@tutanota.com Don't forget to include your code in the email: {code_62a85da8_a746e: p5pZPFZ5Xq4g3n0xX3v9o3tpMcW8liELko4/ot3XO8fNERv5Xl GhGn09Z0HXIcZRB5RvGIhSWPhkLi4KOEEfxZn/BHOcYjk7qF2o YlAHdoJVnYHTDBajfD5Um7p7CyDQ5VJFwDcGqTioF7QLrYkEI3 lu7z32G9GRpFeaY2R8BW5jryhFKgbRxkDSxT7X52EBZshlqWU6 pI3qnsQU//AEsz/NDdWfIDPoO0lt7GARdjK61jKJrjVTzY+RTL lwT9SZRXKyv5/bfKwnBjqbncr4pEkA2Xw=}
Emails

sevenoneone@cock.li

kavariusing@tutanota.com

Extracted

Path

C:\Users\Admin\AppData\Roaming\A746E-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .a746e -- If for some reason you read this text before the encryption ended, this can be understood by the fact that the computer slows down, and your heart rate has increased due to the ability to turn it off, then we recommend that you move away from the computer and accept that you have been compromised, rebooting/shutdown will cause you to lose files without the possibility of recovery and even god will not be able to help you, it could be files on the network belonging to other users, sure you want to take that responsibility? -- Our encryption algorithms are very strong and your files are very well protected, you can't hope to recover them without our help. The only way to get your files back is to cooperate with us and get the decrypter program. Do not try to recover your files without a decrypt program, you may damage them and then they will be impossible to recover. We advise you to contact us as soon as possible, otherwise there is a possibility that your files will never be returned. For us this is just business and to prove to you our seriousness, we will decrypt you some files for free, but we will not wait for your letter for a long time, mail can be abused, we are moving on, hurry up with the decision. Сontact us: 1.sevenoneone@cock.li 2.kavariusing@tutanota.com Don't forget to include your code in the email: {code_62a85da8_a746e: p5pZPFZ5Xq4g3n0xX3v9o3tpMcW8liELko4/ot3XO8fNERv5Xl GhGn09Z0HXIcZRB5RvGIhSWPhkLi4KOEEfxZn/BHOcYjk7qF2o YlAHdoJVnYHTDBajfD5Um7p7CyDQ5VJFwDcGqTioF7QLrYkEI3 lu7z32G9GRpFeaY2R8BW5jryhFKgbRxkDSxT7X52EBZshlqWU6 pI3qnsQU//AEsz/NDdWfIDPoO0lt7GARdjK61jKJrjVTzY+RTL lwT9SZRXKyv5/bfKwnBjqbncr4pEkA2Xw=}Hi! Your files are encrypted. All encrypted files for this computer has extension: .a746e -- If for some reason you read this text before the encryption ended, this can be understood by the fact that the computer slows down, and your heart rate has increased due to the ability to turn it off, then we recommend that you move away from the computer and accept that you have been compromised, rebooting/shutdown will cause you to lose files without the possibility of recovery and even god will not be able to help you, it could be files on the network belonging to other users, sure you want to take that responsibility? -- Our encryption algorithms are very strong and your files are very well protected, you can't hope to recover them without our help. The only way to get your files back is to cooperate with us and get the decrypter program. Do not try to recover your files without a decrypt program, you may damage them and then they will be impossible to recover. We advise you to contact us as soon as possible, otherwise there is a possibility that your files will never be returned. For us this is just business and to prove to you our seriousness, we will decrypt you some files for free, but we will not wait for your letter for a long time, mail can be abused, we are moving on, hurry up with the decision. Сontact us: 1.sevenoneone@cock.li 2.kavariusing@tutanota.com Don't forget to include your code in the email: {code_62a85da8_a746e: p5pZPFZ5Xq4g3n0xX3v9o3tpMcW8liELko4/ot3XO8fNERv5Xl GhGn09Z0HXIcZRB5RvGIhSWPhkLi4KOEEfxZn/BHOcYjk7qF2o YlAHdoJVnYHTDBajfD5Um7p7CyDQ5VJFwDcGqTioF7QLrYkEI3 lu7z32G9GRpFeaY2R8BW5jryhFKgbRxkDSxT7X52EBZshlqWU6 pI3qnsQU//AEsz/NDdWfIDPoO0lt7GARdjK61jKJrjVTzY+RTL lwT9SZRXKyv5/bfKwnBjqbncr4pEkA2Xw=}
Emails

sevenoneone@cock.li

kavariusing@tutanota.com

Signatures

  • Detected Netwalker Ransomware 2 IoCs

    Detected unpacked Netwalker executable.

  • Netwalker Ransomware

    Ransomware family with multiple versions. Also known as MailTo.

    ransomwarenetwalker
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies extensions of user files 1 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Deletes itself 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spyware
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Modifies service 2 TTPs 5 IoCs
    persistence
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 7414 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Suspicious behavior: EnumeratesProcesses 17857 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\98cf38865117a3e333df1fb0a538b97f66fea568746fefb697e76ca8c686a3e3.exe
    "C:\Users\Admin\AppData\Local\Temp\98cf38865117a3e333df1fb0a538b97f66fea568746fefb697e76ca8c686a3e3.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1756
    • C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\system32\explorer.exe"
      2⤵
      • Modifies extensions of user files
      • Deletes itself
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1824
      • C:\Windows\SysWOW64\explorer.exe
        "C:\Windows\system32\explorer.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2012
        • C:\Windows\system32\vssadmin.exe
          C:\Windows\system32\vssadmin.exe delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:1172
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Modifies service
    • Suspicious use of AdjustPrivilegeToken
    PID:1984

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Modify Existing Service

1
T1031

Privilege Escalation

Defense Evasion

File Deletion

2
T1107

Modify Registry

2
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2
T1490

Replay Monitor

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Downloads

  • memory/1172-4-0x0000000000000000-mapping.dmp
    Download
  • memory/1756-1-0x0000000000160000-0x000000000017B000-memory.dmp
    Filesize

    108KB

    Download
  • memory/1824-0-0x0000000000000000-mapping.dmp
    Download
  • memory/1824-3-0x0000000000210000-0x000000000022B000-memory.dmp
    Filesize

    108KB

    Download
  • memory/2012-2-0x0000000000000000-mapping.dmp
    Download