Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-10-2023 07:51

General

  • Target

    cf72f08cc5621da876e82ddf3f607024f3752ad234560f5211a4f9261e784262.exe

  • Size

    1.3MB

  • MD5

    760c5027fb9eaeed3b39726aced52f54

  • SHA1

    8dd3c44371aded71f680b541813d6b6d20bf4fd5

  • SHA256

    cf72f08cc5621da876e82ddf3f607024f3752ad234560f5211a4f9261e784262

  • SHA512

    7dfee5a6f41a69801cbd0e6cba9e18b1ebabef75753bbe71f19a498176e81d5156a607e143072a0ccac4a4341b64e2a9c226abeecefdcc757afbcff291c2c26f

  • SSDEEP

    24576:AjHPO2Okx2LFKjHPOnOkx2LFFJbKkKF/eMNPj/t7te:ATG4QQTGHQR9KFeM8

Score
10/10
upx

Malware Config

Signatures

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • UPX packed file 9 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Drops file in System32 directory 26 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 2 IoCs
  • Modifies data under HKEY_USERS 18 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: LoadsDriver 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 19 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:584
      • C:\Program Files\Common Files\nbtstat.exe
        "C:\Program Files\Common Files\nbtstat.exe"
        2⤵
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Checks SCSI registry key(s)
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2060
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
      • Suspicious use of NtCreateUserProcessOtherParentProcess
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:3164
      • C:\Users\Admin\AppData\Local\Temp\cf72f08cc5621da876e82ddf3f607024f3752ad234560f5211a4f9261e784262.exe
        "C:\Users\Admin\AppData\Local\Temp\cf72f08cc5621da876e82ddf3f607024f3752ad234560f5211a4f9261e784262.exe"
        2⤵
        • Checks computer location settings
        • Drops file in System32 directory
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3908
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c timeout /t 1 & del /Q /F "C:\Users\Admin\AppData\Local\Temp\cf72f08cc5621da876e82ddf3f607024f3752ad234560f5211a4f9261e784262.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3620
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 1
            4⤵
            • Delays execution with timeout.exe
            PID:4496
    • C:\Windows\Syswow64\9cc85990
      C:\Windows\Syswow64\9cc85990
      1⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4104
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c timeout /t 1 & del /Q /F "C:\Windows\Syswow64\9cc85990"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:996
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 1
          3⤵
          • Delays execution with timeout.exe
          PID:1848

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Program Files\Common Files\nbtstat.exe

      Filesize

      21KB

      MD5

      004091b8024936ff322c11cf370f2184

      SHA1

      8208fee26d92e661a8f65a721b272ae931bc7692

      SHA256

      6210fa6ade115dd07409cfae21683b1772d6d3fdb6b438814cacbd3588dad9e3

      SHA512

      769d4b80f458e9cabd2ec016df37c27d5cff01ab21803d5193917dafd95c90ac7044356d2745c6e19e9f4f86cbdea052ae3025c73df7d593de8d43525f092db6

    • C:\Windows\464310

      Filesize

      786B

      MD5

      efcf0e560e6dd78a6c1d374cba413ee3

      SHA1

      14f10ee4552675a952c210c9715f5916df303c6b

      SHA256

      1205b227e4bb77a5c321433cb1511bc7ce37d9c21aa1339403feb8acc510b3ea

      SHA512

      759551bbdf712ab91aad9298a85edfbb5407c044e3dc8273d3f4dd29d7fd26c3c19ab0ba268cbeffb7bb7c29c5b8d6631b47c09f353fc47409873d174c5a5dd7

    • C:\Windows\SysWOW64\9cc85990

      Filesize

      1.3MB

      MD5

      f35e180ee3fae019bcb573feb8a5a0d0

      SHA1

      b15827e2b8ebb1c31ba1ab370e6e7990041f69ae

      SHA256

      88f195592709455cf2f0bc422d1edd3a7cd7bd9ab0ccc0959b4a869d29d78f1e

      SHA512

      a1341d2962671f75a4a71e151766fc54de16c10d9950f72f7222af1451c4925d9d2345e955c4284b1e88b2bc68bc9bef96d0f62b56ea410968f94e37f723f40d

    • C:\Windows\SysWOW64\9cc85990

      Filesize

      1.3MB

      MD5

      f35e180ee3fae019bcb573feb8a5a0d0

      SHA1

      b15827e2b8ebb1c31ba1ab370e6e7990041f69ae

      SHA256

      88f195592709455cf2f0bc422d1edd3a7cd7bd9ab0ccc0959b4a869d29d78f1e

      SHA512

      a1341d2962671f75a4a71e151766fc54de16c10d9950f72f7222af1451c4925d9d2345e955c4284b1e88b2bc68bc9bef96d0f62b56ea410968f94e37f723f40d

    • memory/584-79-0x0000024F9FB50000-0x0000024F9FB51000-memory.dmp

      Filesize

      4KB

    • memory/584-39-0x0000024F9FB10000-0x0000024F9FB38000-memory.dmp

      Filesize

      160KB

    • memory/584-38-0x0000024F9FB50000-0x0000024F9FB51000-memory.dmp

      Filesize

      4KB

    • memory/584-36-0x0000024F9FB00000-0x0000024F9FB03000-memory.dmp

      Filesize

      12KB

    • memory/2060-81-0x000002A465EF0000-0x000002A465EF1000-memory.dmp

      Filesize

      4KB

    • memory/2060-89-0x000002A4663E0000-0x000002A4663E1000-memory.dmp

      Filesize

      4KB

    • memory/2060-96-0x000002A4662C0000-0x000002A4662C2000-memory.dmp

      Filesize

      8KB

    • memory/2060-27-0x000002A463D50000-0x000002A463D53000-memory.dmp

      Filesize

      12KB

    • memory/2060-30-0x000002A4657C0000-0x000002A46588B000-memory.dmp

      Filesize

      812KB

    • memory/2060-95-0x000002A4664A0000-0x000002A466665000-memory.dmp

      Filesize

      1.8MB

    • memory/2060-33-0x00007FF9840F0000-0x00007FF984100000-memory.dmp

      Filesize

      64KB

    • memory/2060-32-0x000002A463DD0000-0x000002A463DD1000-memory.dmp

      Filesize

      4KB

    • memory/2060-29-0x000002A4657C0000-0x000002A46588B000-memory.dmp

      Filesize

      812KB

    • memory/2060-92-0x000002A4664A0000-0x000002A466665000-memory.dmp

      Filesize

      1.8MB

    • memory/2060-91-0x000002A4663E0000-0x000002A4663E1000-memory.dmp

      Filesize

      4KB

    • memory/2060-82-0x000002A465F20000-0x000002A465F21000-memory.dmp

      Filesize

      4KB

    • memory/2060-90-0x000002A465F20000-0x000002A465F21000-memory.dmp

      Filesize

      4KB

    • memory/2060-86-0x000002A465F00000-0x000002A465F01000-memory.dmp

      Filesize

      4KB

    • memory/2060-88-0x000002A4662C0000-0x000002A4662C2000-memory.dmp

      Filesize

      8KB

    • memory/2060-87-0x000002A465F10000-0x000002A465F11000-memory.dmp

      Filesize

      4KB

    • memory/2060-71-0x00007FF9840F0000-0x00007FF984100000-memory.dmp

      Filesize

      64KB

    • memory/2060-72-0x000002A4657C0000-0x000002A46588B000-memory.dmp

      Filesize

      812KB

    • memory/2060-73-0x000002A465EF0000-0x000002A465EF1000-memory.dmp

      Filesize

      4KB

    • memory/2060-85-0x000002A4664A0000-0x000002A466665000-memory.dmp

      Filesize

      1.8MB

    • memory/2060-78-0x000002A463DD0000-0x000002A463DD1000-memory.dmp

      Filesize

      4KB

    • memory/2060-84-0x000002A465F00000-0x000002A465F01000-memory.dmp

      Filesize

      4KB

    • memory/2060-80-0x000002A465F00000-0x000002A465F01000-memory.dmp

      Filesize

      4KB

    • memory/2060-83-0x000002A465F10000-0x000002A465F11000-memory.dmp

      Filesize

      4KB

    • memory/3164-20-0x0000000002B70000-0x0000000002B73000-memory.dmp

      Filesize

      12KB

    • memory/3164-70-0x0000000008650000-0x0000000008749000-memory.dmp

      Filesize

      996KB

    • memory/3164-17-0x0000000002B70000-0x0000000002B73000-memory.dmp

      Filesize

      12KB

    • memory/3164-19-0x0000000002B70000-0x0000000002B73000-memory.dmp

      Filesize

      12KB

    • memory/3164-22-0x0000000008650000-0x0000000008749000-memory.dmp

      Filesize

      996KB

    • memory/3164-21-0x0000000002B90000-0x0000000002B91000-memory.dmp

      Filesize

      4KB

    • memory/3908-0-0x00000000001F0000-0x0000000000279000-memory.dmp

      Filesize

      548KB

    • memory/3908-46-0x00000000001F0000-0x0000000000279000-memory.dmp

      Filesize

      548KB

    • memory/3908-31-0x00000000001F0000-0x0000000000279000-memory.dmp

      Filesize

      548KB

    • memory/4104-3-0x0000000000CC0000-0x0000000000D49000-memory.dmp

      Filesize

      548KB

    • memory/4104-77-0x0000000000CC0000-0x0000000000D49000-memory.dmp

      Filesize

      548KB

    • memory/4104-69-0x0000000000CC0000-0x0000000000D49000-memory.dmp

      Filesize

      548KB

    • memory/4104-35-0x0000000000CC0000-0x0000000000D49000-memory.dmp

      Filesize

      548KB