Overview

overview

10

Static

static

10

58e923ff15...le.exe

windows10_x64

10

Analysis

  • max time kernel
    397s
  • max time network
    356s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    22-10-2021 15:24

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General

  • Target

    58e923ff158fb5aecd293b7a0e0d305296110b83c6e270786edcc4fea1c8404c.bin.sample.exe

  • Size

    94KB

  • MD5

    73de5babf166f28dc81d6c2faa369379

  • SHA1

    e393a9ecf0d0a8babaa5efcc34f10577aff1cad1

  • SHA256

    58e923ff158fb5aecd293b7a0e0d305296110b83c6e270786edcc4fea1c8404c

  • SHA512

    d1a473ce9af849820b8cc9d777478e2a69293f3471ee3120f9ca96c43af922e0d661048d2d36688a62a63aa185728f83ee32f5a67ddcc0d1633c5bfe46c5ea51

Score
10/10
netwalkerpersistenceransomware

Malware Config

Extracted

Path

C:\odt\E242E-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .e242e -- 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. Contact us: 1.kkeessnnkkaa@cock.li 2.hhaaxxhhaaxx@tuta.io Don't forget to include your code in the email: {code_345f15fb_e242e: wWq5SnKGMxqX5nyA4MAS0/FJxi7out2D/upHi7tF1UjU9GKX+Y WQFc4VwR54RvmWdvHdm/PSvcoh74hG2RLGEQhFRPpAAaxG+xVf NB0bzjrc+cy+jmvqkpoHWokhcMsx+ZJ0O3WkLTJAnQWvgdPBjL sa4N5a8ePRk3+fcNMVJa5SfKcm/CrCGhCR4BI7Uc+HHt2Kp4vW yFRCTM0wzgHtXs3HGbMlCAm8nta59sjlsxiKQkQx3iEQisIEgY pTqw4NktCgL5ObY+SPAQmZRg5fgxcKca0=}
Emails

kkeessnnkkaa@cock.li

hhaaxxhhaaxx@tuta.io

Extracted

Path

C:\ProgramData\Microsoft\Network\Downloader\E242E-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .e242e -- 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. Contact us: 1.kkeessnnkkaa@cock.li 2.hhaaxxhhaaxx@tuta.io Don't forget to include your code in the email: {code_345f15fb_e242e: wWq5SnKGMxqX5nyA4MAS0/FJxi7out2D/upHi7tF1UjU9GKX+Y WQFc4VwR54RvmWdvHdm/PSvcoh74hG2RLGEQhFRPpAAaxG+xVf NB0bzjrc+cy+jmvqkpoHWokhcMsx+ZJ0O3WkLTJAnQWvgdPBjL sa4N5a8ePRk3+fcNMVJa5SfKcm/CrCGhCR4BI7Uc+HHt2Kp4vW yFRCTM0wzgHtXs3HGbMlCAm8nta59sjlsxiKQkQx3iEQisIEgY pTqw4NktCgL5ObY+SPAQmZRg5fgxcKca0=}Hi! Your files are encrypted. All encrypted files for this computer has extension: .e242e -- 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. Contact us: 1.kkeessnnkkaa@cock.li 2.hhaaxxhhaaxx@tuta.io Don't forget to include your code in the email: {code_345f15fb_e242e: wWq5SnKGMxqX5nyA4MAS0/FJxi7out2D/upHi7tF1UjU9GKX+Y WQFc4VwR54RvmWdvHdm/PSvcoh74hG2RLGEQhFRPpAAaxG+xVf NB0bzjrc+cy+jmvqkpoHWokhcMsx+ZJ0O3WkLTJAnQWvgdPBjL sa4N5a8ePRk3+fcNMVJa5SfKcm/CrCGhCR4BI7Uc+HHt2Kp4vW yFRCTM0wzgHtXs3HGbMlCAm8nta59sjlsxiKQkQx3iEQisIEgY pTqw4NktCgL5ObY+SPAQmZRg5fgxcKca0=}
Emails

kkeessnnkkaa@cock.li

hhaaxxhhaaxx@tuta.io

Extracted

Path

C:\ProgramData\Microsoft\Windows Security Health\Logs\E242E-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .e242e -- 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. Contact us: 1.kkeessnnkkaa@cock.li 2.hhaaxxhhaaxx@tuta.io Don't forget to include your code in the email: {code_345f15fb_e242e: wWq5SnKGMxqX5nyA4MAS0/FJxi7out2D/upHi7tF1UjU9GKX+Y WQFc4VwR54RvmWdvHdm/PSvcoh74hG2RLGEQhFRPpAAaxG+xVf NB0bzjrc+cy+jmvqkpoHWokhcMsx+ZJ0O3WkLTJAnQWvgdPBjL sa4N5a8ePRk3+fcNMVJa5SfKcm/CrCGhCR4BI7Uc+HHt2Kp4vW yFRCTM0wzgHtXs3HGbMlCAm8nta59sjlsxiKQkQx3iEQisIEgY pTqw4NktCgL5ObY+SPAQmZRg5fgxcKca0=}Hi! Your files are encrypted. All encrypted files for this computer has extension: .e242e -- 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. Contact us: 1.kkeessnnkkaa@cock.li 2.hhaaxxhhaaxx@tuta.io Don't forget to include your code in the email: {code_345f15fb_e242e: wWq5SnKGMxqX5nyA4MAS0/FJxi7out2D/upHi7tF1UjU9GKX+Y WQFc4VwR54RvmWdvHdm/PSvcoh74hG2RLGEQhFRPpAAaxG+xVf NB0bzjrc+cy+jmvqkpoHWokhcMsx+ZJ0O3WkLTJAnQWvgdPBjL sa4N5a8ePRk3+fcNMVJa5SfKcm/CrCGhCR4BI7Uc+HHt2Kp4vW yFRCTM0wzgHtXs3HGbMlCAm8nta59sjlsxiKQkQx3iEQisIEgY pTqw4NktCgL5ObY+SPAQmZRg5fgxcKca0=}Hi! Your files are encrypted. All encrypted files for this computer has extension: .e242e -- 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. Contact us: 1.kkeessnnkkaa@cock.li 2.hhaaxxhhaaxx@tuta.io Don't forget to include your code in the email: {code_345f15fb_e242e: wWq5SnKGMxqX5nyA4MAS0/FJxi7out2D/upHi7tF1UjU9GKX+Y WQFc4VwR54RvmWdvHdm/PSvcoh74hG2RLGEQhFRPpAAaxG+xVf NB0bzjrc+cy+jmvqkpoHWokhcMsx+ZJ0O3WkLTJAnQWvgdPBjL sa4N5a8ePRk3+fcNMVJa5SfKcm/CrCGhCR4BI7Uc+HHt2Kp4vW yFRCTM0wzgHtXs3HGbMlCAm8nta59sjlsxiKQkQx3iEQisIEgY pTqw4NktCgL5ObY+SPAQmZRg5fgxcKca0=}
Emails

kkeessnnkkaa@cock.li

hhaaxxhhaaxx@tuta.io

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
  • Deletes itself 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Interacts with shadow copies 2 TTPs 2 IoCs

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

    ransomware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\58e923ff158fb5aecd293b7a0e0d305296110b83c6e270786edcc4fea1c8404c.bin.sample.exe
    "C:\Users\Admin\AppData\Local\Temp\58e923ff158fb5aecd293b7a0e0d305296110b83c6e270786edcc4fea1c8404c.bin.sample.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2656
    • C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\system32\explorer.exe"
      2⤵
      • Deletes itself
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3516
      • C:\Windows\SysWOW64\explorer.exe
        "C:\Windows\system32\explorer.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3296
        • C:\Windows\system32\vssadmin.exe
          C:\Windows\system32\vssadmin.exe delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:512
      • C:\Windows\SysWOW64\notepad.exe
        C:\Windows\system32\notepad.exe "C:\Users\Admin\Desktop\E242E-Readme.txt"
        3⤵
          PID:8236
        • C:\Windows\system32\vssadmin.exe
          C:\Windows\system32\vssadmin.exe delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:8272
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1272

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Privilege Escalation

    Defense Evasion

    File Deletion

    2
    T1107

    Modify Registry

    1
    T1112

    Credential Access

    Discovery

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Inhibit System Recovery

    2
    T1490

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\Desktop\E242E-Readme.txt
      MD5

      4928e5b87b28864568a1cf921045c4e0

      SHA1

      80faa31d29df51249c736230c9e9cf52b97ecd39

      SHA256

      023397c36ba3a9941e3102f02c0192057c0c6a6352d66042ee118b839b5e34d4

      SHA512

      8e3786006b5e3d1fd6260e0abd0cd7bc2c61d0690ec611005777358cf37d3df81ec073db144674cff02861129d5b943eddc41b532e6d67f1c423bb4eb9cc9852

      Download Submit
    • memory/512-117-0x0000000000000000-mapping.dmp
      Download
    • memory/3296-116-0x0000000000000000-mapping.dmp
      Download
    • memory/3296-119-0x0000000000BE0000-0x0000000000BFB000-memory.dmp
      Filesize

      108KB

      Download
    • memory/3516-115-0x0000000000000000-mapping.dmp
      Download
    • memory/3516-118-0x0000000000AE0000-0x0000000000AFB000-memory.dmp
      Filesize

      108KB

      Download
    • memory/8236-120-0x0000000000000000-mapping.dmp
      Download
    • memory/8272-121-0x0000000000000000-mapping.dmp
      Download