Overview

overview

10

Static

static

10

bde6a59a46...9e.exe

windows7_x64

10

bde6a59a46...9e.exe

windows10_x64

10

Analysis

  • max time kernel
    144s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    09-11-2020 20:17

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General

  • Target

    bde6a59a4611aba5862ce66aef2fb12d841ad0ba0ad0a590b26eaddb7ad52a9e.exe

  • Size

    92KB

  • MD5

    51b3c42e1c5c8d736d934af459204471

  • SHA1

    db4084bfee8902fd025c31f0cfea7b2ee52e5e70

  • SHA256

    bde6a59a4611aba5862ce66aef2fb12d841ad0ba0ad0a590b26eaddb7ad52a9e

  • SHA512

    75cb47ab16f48a35bf8825c61c259e3392bde93dd993556fa9167dd096d8f635374cfafe886aec84056aceaf0b8fabb5122d09f871b9f093282bb0902a5c5178

Score
10/10
netwalkerpersistenceransomwarespyware

Malware Config

Extracted

Path

C:\ProgramData\Microsoft\User Account Pictures\553E0-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .553e0 -- 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_5f9d9c92_553e0: MeEK/WFabcY22++opjyiRPpcOjM6kMur70c0f0zkpZGbT366uF nlfuzSi2mjr3/nLy29j5VqVup4XBaa8J7LtQit4O34mEwIkpyd X8w2mDY82HspAlWTl1yDqk+4oY6IOwBf1aSZMnp37dnvzFLoMq W5dTLzKTFmrIpQ7Yk9hGvzu99PTkiBpEk7IKOcS1WsCAwvXsgQ VcUTIjwBEwCyRaO1Ro8NHNymlh6AdQarbArmK1tKiB6thKBFZF sZgILLnYKmdvuYkLjYH6NB3++dX6SLRp0=}
Emails

sevenoneone@cock.li

kavariusing@tutanota.com

Extracted

Path

C:\Users\Admin\Desktop\553E0-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .553e0 -- 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_5f9d9c92_553e0: MeEK/WFabcY22++opjyiRPpcOjM6kMur70c0f0zkpZGbT366uF nlfuzSi2mjr3/nLy29j5VqVup4XBaa8J7LtQit4O34mEwIkpyd X8w2mDY82HspAlWTl1yDqk+4oY6IOwBf1aSZMnp37dnvzFLoMq W5dTLzKTFmrIpQ7Yk9hGvzu99PTkiBpEk7IKOcS1WsCAwvXsgQ VcUTIjwBEwCyRaO1Ro8NHNymlh6AdQarbArmK1tKiB6thKBFZF sZgILLnYKmdvuYkLjYH6NB3++dX6SLRp0=}Hi! Your files are encrypted. All encrypted files for this computer has extension: .553e0 -- 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_5f9d9c92_553e0: MeEK/WFabcY22++opjyiRPpcOjM6kMur70c0f0zkpZGbT366uF nlfuzSi2mjr3/nLy29j5VqVup4XBaa8J7LtQit4O34mEwIkpyd X8w2mDY82HspAlWTl1yDqk+4oY6IOwBf1aSZMnp37dnvzFLoMq W5dTLzKTFmrIpQ7Yk9hGvzu99PTkiBpEk7IKOcS1WsCAwvXsgQ VcUTIjwBEwCyRaO1Ro8NHNymlh6AdQarbArmK1tKiB6thKBFZF sZgILLnYKmdvuYkLjYH6NB3++dX6SLRp0=}
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 4 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 7489 IoCs
  • Interacts with shadow copies 2 TTPs 3 IoCs

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

    ransomware
  • Suspicious behavior: EnumeratesProcesses 16452 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bde6a59a4611aba5862ce66aef2fb12d841ad0ba0ad0a590b26eaddb7ad52a9e.exe
    "C:\Users\Admin\AppData\Local\Temp\bde6a59a4611aba5862ce66aef2fb12d841ad0ba0ad0a590b26eaddb7ad52a9e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1360
    • 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:1748
      • C:\Windows\system32\vssadmin.exe
        C:\Windows\system32\vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:1768
      • C:\Windows\SysWOW64\explorer.exe
        "C:\Windows\system32\explorer.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:872
        • C:\Windows\system32\vssadmin.exe
          C:\Windows\system32\vssadmin.exe delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:1832
      • C:\Windows\SysWOW64\notepad.exe
        C:\Windows\system32\notepad.exe "C:\Users\Admin\Desktop\553E0-Readme.txt"
        3⤵
          PID:6972
        • C:\Windows\system32\vssadmin.exe
          C:\Windows\system32\vssadmin.exe delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:5468
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Modifies service
      • Suspicious use of AdjustPrivilegeToken
      PID:1992

    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

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\Desktop\553E0-Readme.txt
      MD5

      e76ae54e01723c3585e3a2036dfaf7d9

      SHA1

      ee0ed1c81109a0f56ad4f5017f6e6415f0339af1

      SHA256

      5b94a55c871465b8e54ef05db54628adc9ebafbd927cc9b1a15fe1cec3651ed8

      SHA512

      32e4231a2d95fba41d75c7c02f3495070b63adcfb5320faec59209f63dfd733244ce93a71c0670bb1816adf45a245b3e8827f934555a88515ccc45b1276f19bf

      Download Submit
    • memory/872-3-0x0000000000000000-mapping.dmp
      Download
    • memory/1360-1-0x00000000000E0000-0x00000000000FB000-memory.dmp
      Filesize

      108KB

      Download
    • memory/1748-0-0x0000000000000000-mapping.dmp
      Download
    • memory/1748-4-0x00000000001F0000-0x000000000020B000-memory.dmp
      Filesize

      108KB

      Download
    • memory/1768-2-0x0000000000000000-mapping.dmp
      Download
    • memory/1832-5-0x0000000000000000-mapping.dmp
      Download
    • memory/5468-7-0x0000000000000000-mapping.dmp
      Download
    • memory/6972-6-0x0000000000000000-mapping.dmp
      Download