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Analysis

  • max time kernel
    149s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    07/11/2022, 10:54

General

  • Target

    b921ad3673e52c1e1c0596f75fb8ccf0464bb98838f926f7c975a660188d95b3.exe

  • Size

    313KB

  • MD5

    20055c8671238163ca143a2929be39f6

  • SHA1

    034b708b06429f36a7952d5e2929f87d6de9134c

  • SHA256

    b921ad3673e52c1e1c0596f75fb8ccf0464bb98838f926f7c975a660188d95b3

  • SHA512

    c8cde8c7153fc6f77b9ff70fc457cc9d2874d526d5a268df9fd6aac7e5c3c32d9358873c2d1c2dd595c0cb970a23b909345d9baa495404a2d43fa8ac855aa9aa

  • SSDEEP

    6144:HpfHJ08j1FY6zj9KjkurnbQtqCg2hh/j6n8aJsdKPGL96eYyjKwpCDih9:ZHJN1FJpKjkuTUta23/Bae5UeYyADiH

Malware Config

Signatures

  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 6 IoCs

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

  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b921ad3673e52c1e1c0596f75fb8ccf0464bb98838f926f7c975a660188d95b3.exe
    "C:\Users\Admin\AppData\Local\Temp\b921ad3673e52c1e1c0596f75fb8ccf0464bb98838f926f7c975a660188d95b3.exe"
    1⤵
    • Adds policy Run key to start application
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1184
    • C:\Windows\SysWOW64\de-DE1.exe
      C:\Windows\SysWOW64\de-DE1.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1648
    • C:\Windows\SysWOW64\cmd.exe
      /c C:\Users\Admin\AppData\Local\Temp\~unins3493.bat "C:\Users\Admin\AppData\Local\Temp\b921ad3673e52c1e1c0596f75fb8ccf0464bb98838f926f7c975a660188d95b3.exe"
      2⤵
      • Deletes itself
      PID:844

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\~unins3493.bat

    Filesize

    49B

    MD5

    9e0a2f5ab30517809b95a1ff1dd98c53

    SHA1

    5c1eefdf10e67d1e9216e2e3f5e92352d583c9ce

    SHA256

    97ac9fee75a1f7b63b3115e9c4fb9dda80b1caba26d2fb51325670dee261fe32

    SHA512

    e959cc1fd48fb1cccf135a697924c775a3812bab211fc7f9b00c5a9d617261d84c5d6f7cb548774c1e8f46811b06ca39c5603d0e10cbcb7b805f9abbe49b9b42

  • C:\Windows\SysWOW64\de-DE1.exe

    Filesize

    138KB

    MD5

    0e308da35b0ba1f91c122b1764a944ea

    SHA1

    bd4fe0e789ac3d46220e9fb7cf64cb02abd7a96a

    SHA256

    b50c611f9625dd59ea93852287df32b0035a743c12ffe8721aebcb07e4420db3

    SHA512

    a7490e442d5c5114b22b69346e3cb092ef025229f2b097586ab80a8dd5aace148f58746507bb1af585cb501db2f83ebf3b7bf5fd33471552df3a5048e2c37e82

  • C:\Windows\SysWOW64\de-DE1.exe

    Filesize

    138KB

    MD5

    0e308da35b0ba1f91c122b1764a944ea

    SHA1

    bd4fe0e789ac3d46220e9fb7cf64cb02abd7a96a

    SHA256

    b50c611f9625dd59ea93852287df32b0035a743c12ffe8721aebcb07e4420db3

    SHA512

    a7490e442d5c5114b22b69346e3cb092ef025229f2b097586ab80a8dd5aace148f58746507bb1af585cb501db2f83ebf3b7bf5fd33471552df3a5048e2c37e82

  • \Windows\SysWOW64\de-DE1.exe

    Filesize

    138KB

    MD5

    0e308da35b0ba1f91c122b1764a944ea

    SHA1

    bd4fe0e789ac3d46220e9fb7cf64cb02abd7a96a

    SHA256

    b50c611f9625dd59ea93852287df32b0035a743c12ffe8721aebcb07e4420db3

    SHA512

    a7490e442d5c5114b22b69346e3cb092ef025229f2b097586ab80a8dd5aace148f58746507bb1af585cb501db2f83ebf3b7bf5fd33471552df3a5048e2c37e82

  • memory/1184-61-0x00000000003C0000-0x00000000003FE000-memory.dmp

    Filesize

    248KB

  • memory/1184-73-0x00000000005E1000-0x0000000000642000-memory.dmp

    Filesize

    388KB

  • memory/1184-63-0x00000000005E1000-0x0000000000642000-memory.dmp

    Filesize

    388KB

  • memory/1184-54-0x0000000074BB1000-0x0000000074BB3000-memory.dmp

    Filesize

    8KB

  • memory/1184-77-0x00000000005E1000-0x0000000000642000-memory.dmp

    Filesize

    388KB

  • memory/1184-60-0x00000000005E0000-0x00000000006E0000-memory.dmp

    Filesize

    1024KB

  • memory/1184-59-0x00000000005E0000-0x0000000000681000-memory.dmp

    Filesize

    644KB

  • memory/1184-58-0x00000000005E0000-0x0000000000681000-memory.dmp

    Filesize

    644KB

  • memory/1184-55-0x00000000005E0000-0x0000000000681000-memory.dmp

    Filesize

    644KB

  • memory/1184-71-0x00000000005E0000-0x00000000006E0000-memory.dmp

    Filesize

    1024KB

  • memory/1184-62-0x0000000000642000-0x0000000000680000-memory.dmp

    Filesize

    248KB

  • memory/1184-72-0x00000000003C0000-0x00000000003FE000-memory.dmp

    Filesize

    248KB

  • memory/1184-76-0x00000000005E0000-0x0000000000681000-memory.dmp

    Filesize

    644KB

  • memory/1648-75-0x0000000073F80000-0x000000007452B000-memory.dmp

    Filesize

    5.7MB

  • memory/1648-74-0x0000000073F80000-0x000000007452B000-memory.dmp

    Filesize

    5.7MB