Overview

overview

10

Static

static

10

IMRML1~1.exe

windows7_x64

10

IMRML1~1.exe

windows10_x64

10

Analysis

  • max time kernel
    186s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    03-01-2022 11:23

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General

  • Target

    IMRML1~1.exe

  • Size

    42KB

  • MD5

    fe21e1480d540be38df0935c0547bd96

  • SHA1

    309ae9f6f193a64d107ef5667355c17587d46832

  • SHA256

    0c49eaabb6a4a0d82a45e26b05251b2a09dd41be1e746e2e77ebc82f0b5f09a2

  • SHA512

    72922e72412d499f89e80db9e38c8f263d0b301b18c886b317aff2aca3099ddb307facb5ba235a362dae4bcef8d448fb78a2903d7a144dfd71e9fd4a0261f22c

Score
10/10
ransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\+README-WARNING+.txt

Ransom Note
::: Greetings ::: Little FAQ: .1. Q: Whats Happen? A: Your files have been encrypted. The file structure was not damaged, we did everything possible so that this could not happen. .2. Q: How to recover files? A: If you wish to decrypt your files you will need to pay us. .3. Q: What about guarantees? A: Its just a business. We absolutely do not care about you and your deals, except getting benefits. If we do not do our work and liabilities - nobody will cooperate with us. Its not in our interests. To check the ability of returning files, you can send to us any 2 files with SIMPLE extensions(jpg,xls,doc, etc... not databases!) and low sizes(max 1 mb), we will decrypt them and send back to you. That is our guarantee. .4. Q: How to contact with you? A: You can write us to our mailbox: [email protected] .5. Q: How will the decryption process proceed after payment? A: After payment we will send to you our scanner-decoder program and detailed instructions for use. With this program you will be able to decrypt all your encrypted files. .6. Q: If I don�t want to pay bad people like you? A: If you will not cooperate with our service - for us, its does not matter. But you will lose your time and data, cause only we have the private key. In practice - time is much more valuable than money. :::BEWARE::: DON'T try to change encrypted files by yourself! If you will try to use any third party software for restoring your data or antivirus solutions - please make a backup for all encrypted files! Any changes in encrypted files may entail damage of the private key and, as result, the loss all data.

Signatures

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    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.

    spywarestealer
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Drops file in Program Files directory 64 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 51 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\IMRML1~1.exe
    "C:\Users\Admin\AppData\Local\Temp\IMRML1~1.exe"
    1⤵
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1192
    • C:\Users\Admin\AppData\Local\Temp\IMRML1~1.exe
      "C:\Users\Admin\AppData\Local\Temp\IMRML1~1.exe" n1192
      2⤵
        PID:764
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1720
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1552
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:1104
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1948
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ping 1.1.1.1 -n 5 & fsutil file setZeroData offset=0 length=131072 "C:\Users\Admin\AppData\Local\Temp\IMRML1~1.exe" & del /q /f "C:\Users\Admin\AppData\Local\Temp\IMRML1~1.exe"
        2⤵
        • Deletes itself
        • Suspicious use of WriteProcessMemory
        PID:1500
        • C:\Windows\SysWOW64\PING.EXE
          ping 1.1.1.1 -n 5
          3⤵
          • Runs ping.exe
          PID:1576
        • C:\Windows\SysWOW64\fsutil.exe
          fsutil file setZeroData offset=0 length=131072 "C:\Users\Admin\AppData\Local\Temp\IMRML1~1.exe"
          3⤵
            PID:1300
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1352
      • C:\Windows\system32\wbengine.exe
        "C:\Windows\system32\wbengine.exe"
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1696
      • C:\Windows\System32\vdsldr.exe
        C:\Windows\System32\vdsldr.exe -Embedding
        1⤵
          PID:1576
        • C:\Windows\System32\vds.exe
          C:\Windows\System32\vds.exe
          1⤵
            PID:1036
          • C:\Windows\system32\Dwm.exe
            "C:\Windows\system32\Dwm.exe"
            1⤵
              PID:852
            • C:\Windows\system32\taskmgr.exe
              "C:\Windows\system32\taskmgr.exe" /4
              1⤵
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious behavior: GetForegroundWindowSpam
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SendNotifyMessage
              PID:1156
            • C:\Windows\system32\AUDIODG.EXE
              C:\Windows\system32\AUDIODG.EXE 0x52c
              1⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:840
            • C:\Windows\system32\NOTEPAD.EXE
              "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\+README-WARNING+.txt
              1⤵
                PID:1748

              Network

              MITRE ATT&CK Enterprise v6

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              Downloads

              • memory/1104-60-0x000007FEFBD71000-0x000007FEFBD73000-memory.dmp

                Filesize

                8KB

                Download

              • memory/1192-55-0x0000000075831000-0x0000000075833000-memory.dmp

                Filesize

                8KB

                Download