Analysis

  • max time kernel
    146s
  • max time network
    166s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 10:14

General

  • Target

    8b941106c15c86f683f9c7420254be7079959c27b096e039e7cdc4a76120cc91.exe

  • Size

    8.0MB

  • MD5

    6f4a7cf18cc2687f7a1c8c4960d0e090

  • SHA1

    eeb4a11a96dfd70d740ce52dba408a9650e58e85

  • SHA256

    8b941106c15c86f683f9c7420254be7079959c27b096e039e7cdc4a76120cc91

  • SHA512

    a678b537e5a2a61df68acf67ad4e2eba5aec67ec1da9cc1d45d11d35b69473606abea8d91700123330ac6b0f37a1a8e11202b1b2fc38e6c2d2db3aa5a9521ffa

  • SSDEEP

    196608:N5JBCkq3tRhyL12aBcgjwikRpe+WsHZSyuf9E4:lBCkAVyLT+ndLbuF

Malware Config

Extracted

Family

bitrat

Version

1.34

C2

logonapplication.ddns.net:4016

Attributes
  • communication_password

    c4ca4238a0b923820dcc509a6f75849b

  • tor_process

    tor

Signatures

  • BitRAT

    BitRAT is a remote access tool written in C++ and uses leaked source code from other families.

  • Modifies security service 2 TTPs 2 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • UPX packed file 8 IoCs

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

  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Loads dropped DLL 6 IoCs
  • Windows security modification 2 TTPs 4 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8b941106c15c86f683f9c7420254be7079959c27b096e039e7cdc4a76120cc91.exe
    "C:\Users\Admin\AppData\Local\Temp\8b941106c15c86f683f9c7420254be7079959c27b096e039e7cdc4a76120cc91.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1612
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iUIPLVfsH" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4D37.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:808
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:656
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        3⤵
          PID:1224
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1144
          • C:\Windows\system32\cmd.exe
            "C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\D24E.tmp\D24F.tmp\D250.bat C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:436
            • C:\Users\Admin\AppData\Local\Temp\D24E.tmp\Bypass.exe
              Bypass.exe
              5⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious behavior: CmdExeWriteProcessMemorySpam
              • Suspicious use of WriteProcessMemory
              PID:1952
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1952 -s 560
                6⤵
                • Loads dropped DLL
                • Program crash
                PID:1740
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
          3⤵
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1288
    • C:\Users\Admin\AppData\Local\Temp\Defender.exe
      "C:\Users\Admin\AppData\Local\Temp\Defender.exe" /D
      1⤵
      • Modifies security service
      • Executes dropped EXE
      • Windows security modification
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1668
      • C:\Users\Admin\AppData\Local\Temp\Defender.exe
        "C:\Users\Admin\AppData\Local\Temp\Defender.exe" /SYS 1
        2⤵
        • Modifies security service
        • Executes dropped EXE
        • Windows security modification
        PID:1496
    • C:\Windows\system32\gpscript.exe
      gpscript.exe /RefreshSystemParam
      1⤵
        PID:884

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\D24E.tmp\Bypass.exe

        Filesize

        810KB

        MD5

        8ec8ca109abce872ef8e54a7c6af215f

        SHA1

        3b4b130d9fdeef5a41a740ea52bf121f24aab713

        SHA256

        5f556b89361ab895a2fc24da90323a2ca43ad1dd46a644b128caeb2879eb411d

        SHA512

        04b3e1457ca6c4ab85d1622a4650e24516af597cb009d9f3681008d72c15e6a9ef626ce4d1e9d52aa6df176836079c6fe6f3d62716afe23c6409871beccc18a5

      • C:\Users\Admin\AppData\Local\Temp\D24E.tmp\Bypass.exe

        Filesize

        810KB

        MD5

        8ec8ca109abce872ef8e54a7c6af215f

        SHA1

        3b4b130d9fdeef5a41a740ea52bf121f24aab713

        SHA256

        5f556b89361ab895a2fc24da90323a2ca43ad1dd46a644b128caeb2879eb411d

        SHA512

        04b3e1457ca6c4ab85d1622a4650e24516af597cb009d9f3681008d72c15e6a9ef626ce4d1e9d52aa6df176836079c6fe6f3d62716afe23c6409871beccc18a5

      • C:\Users\Admin\AppData\Local\Temp\D24E.tmp\D24F.tmp\D250.bat

        Filesize

        525B

        MD5

        d4a739ca802d5dff563766977640f58e

        SHA1

        0a0c28f80cdedb2ecac1d76d15e38b60a63b2be5

        SHA256

        17e4ba6c84d45d5228b96a9a28292e658212c41b8764df0b6510cad24926d6f5

        SHA512

        15de091c5da6fd765e77f23169ce0cbf5b6d045d784cea28f688afe21a96a686fb9995acb2ea8394753a1024c27e4d31d8753ba86d18f880b8009ee001b24004

      • C:\Users\Admin\AppData\Local\Temp\Defender.exe

        Filesize

        802KB

        MD5

        ac34ba84a5054cd701efad5dd14645c9

        SHA1

        dc74a9fd5560b7c7a0fc9d183de9d676e92b9e8b

        SHA256

        c576f7f55c4c0304b290b15e70a638b037df15c69577cd6263329c73416e490e

        SHA512

        df491306a3c8ddb580b7cca1dce9e22a87fd43ca3632f3630cdcbe114bef243e847b2ce774d688f6e142516f2e0fc49d30fad7c7168e627523da21e2fe06836a

      • C:\Users\Admin\AppData\Local\Temp\Defender.exe

        Filesize

        802KB

        MD5

        ac34ba84a5054cd701efad5dd14645c9

        SHA1

        dc74a9fd5560b7c7a0fc9d183de9d676e92b9e8b

        SHA256

        c576f7f55c4c0304b290b15e70a638b037df15c69577cd6263329c73416e490e

        SHA512

        df491306a3c8ddb580b7cca1dce9e22a87fd43ca3632f3630cdcbe114bef243e847b2ce774d688f6e142516f2e0fc49d30fad7c7168e627523da21e2fe06836a

      • C:\Users\Admin\AppData\Local\Temp\Defender.exe

        Filesize

        802KB

        MD5

        ac34ba84a5054cd701efad5dd14645c9

        SHA1

        dc74a9fd5560b7c7a0fc9d183de9d676e92b9e8b

        SHA256

        c576f7f55c4c0304b290b15e70a638b037df15c69577cd6263329c73416e490e

        SHA512

        df491306a3c8ddb580b7cca1dce9e22a87fd43ca3632f3630cdcbe114bef243e847b2ce774d688f6e142516f2e0fc49d30fad7c7168e627523da21e2fe06836a

      • C:\Users\Admin\AppData\Local\Temp\tmp4D37.tmp

        Filesize

        1KB

        MD5

        558f689ca5740bc375b3f6e1cb470f1c

        SHA1

        c4623a70151012887791aa3dac5a510a2656aa77

        SHA256

        9761f3cf9939868311ff5bd17ab0a96b91a2934394b9e83bd5dace3114157931

        SHA512

        e5642f1d75c2a1d8c0cd9857bfd7a74f4f0672e66acb484d73faf2c9fb8bd76a7c6fe751a80a25d07ff9aae14febdb5a0c6fd9016f0f9cbab6555cbdb33ae474

      • \Users\Admin\AppData\Local\Temp\D24E.tmp\Bypass.exe

        Filesize

        810KB

        MD5

        8ec8ca109abce872ef8e54a7c6af215f

        SHA1

        3b4b130d9fdeef5a41a740ea52bf121f24aab713

        SHA256

        5f556b89361ab895a2fc24da90323a2ca43ad1dd46a644b128caeb2879eb411d

        SHA512

        04b3e1457ca6c4ab85d1622a4650e24516af597cb009d9f3681008d72c15e6a9ef626ce4d1e9d52aa6df176836079c6fe6f3d62716afe23c6409871beccc18a5

      • \Users\Admin\AppData\Local\Temp\D24E.tmp\Bypass.exe

        Filesize

        810KB

        MD5

        8ec8ca109abce872ef8e54a7c6af215f

        SHA1

        3b4b130d9fdeef5a41a740ea52bf121f24aab713

        SHA256

        5f556b89361ab895a2fc24da90323a2ca43ad1dd46a644b128caeb2879eb411d

        SHA512

        04b3e1457ca6c4ab85d1622a4650e24516af597cb009d9f3681008d72c15e6a9ef626ce4d1e9d52aa6df176836079c6fe6f3d62716afe23c6409871beccc18a5

      • \Users\Admin\AppData\Local\Temp\D24E.tmp\Bypass.exe

        Filesize

        810KB

        MD5

        8ec8ca109abce872ef8e54a7c6af215f

        SHA1

        3b4b130d9fdeef5a41a740ea52bf121f24aab713

        SHA256

        5f556b89361ab895a2fc24da90323a2ca43ad1dd46a644b128caeb2879eb411d

        SHA512

        04b3e1457ca6c4ab85d1622a4650e24516af597cb009d9f3681008d72c15e6a9ef626ce4d1e9d52aa6df176836079c6fe6f3d62716afe23c6409871beccc18a5

      • \Users\Admin\AppData\Local\Temp\D24E.tmp\Bypass.exe

        Filesize

        810KB

        MD5

        8ec8ca109abce872ef8e54a7c6af215f

        SHA1

        3b4b130d9fdeef5a41a740ea52bf121f24aab713

        SHA256

        5f556b89361ab895a2fc24da90323a2ca43ad1dd46a644b128caeb2879eb411d

        SHA512

        04b3e1457ca6c4ab85d1622a4650e24516af597cb009d9f3681008d72c15e6a9ef626ce4d1e9d52aa6df176836079c6fe6f3d62716afe23c6409871beccc18a5

      • \Users\Admin\AppData\Local\Temp\D24E.tmp\Bypass.exe

        Filesize

        810KB

        MD5

        8ec8ca109abce872ef8e54a7c6af215f

        SHA1

        3b4b130d9fdeef5a41a740ea52bf121f24aab713

        SHA256

        5f556b89361ab895a2fc24da90323a2ca43ad1dd46a644b128caeb2879eb411d

        SHA512

        04b3e1457ca6c4ab85d1622a4650e24516af597cb009d9f3681008d72c15e6a9ef626ce4d1e9d52aa6df176836079c6fe6f3d62716afe23c6409871beccc18a5

      • \Users\Admin\AppData\Local\Temp\Defender.exe

        Filesize

        802KB

        MD5

        ac34ba84a5054cd701efad5dd14645c9

        SHA1

        dc74a9fd5560b7c7a0fc9d183de9d676e92b9e8b

        SHA256

        c576f7f55c4c0304b290b15e70a638b037df15c69577cd6263329c73416e490e

        SHA512

        df491306a3c8ddb580b7cca1dce9e22a87fd43ca3632f3630cdcbe114bef243e847b2ce774d688f6e142516f2e0fc49d30fad7c7168e627523da21e2fe06836a

      • memory/436-105-0x0000000000000000-mapping.dmp

      • memory/656-74-0x000000000040BE14-mapping.dmp

      • memory/656-100-0x0000000000400000-0x0000000000B19000-memory.dmp

        Filesize

        7.1MB

      • memory/656-77-0x0000000000400000-0x0000000000B19000-memory.dmp

        Filesize

        7.1MB

      • memory/656-69-0x0000000000400000-0x0000000000B19000-memory.dmp

        Filesize

        7.1MB

      • memory/656-73-0x0000000000400000-0x0000000000B19000-memory.dmp

        Filesize

        7.1MB

      • memory/656-68-0x0000000000400000-0x0000000000B19000-memory.dmp

        Filesize

        7.1MB

      • memory/656-71-0x0000000000400000-0x0000000000B19000-memory.dmp

        Filesize

        7.1MB

      • memory/656-61-0x0000000000400000-0x0000000000B19000-memory.dmp

        Filesize

        7.1MB

      • memory/656-67-0x0000000000400000-0x0000000000B19000-memory.dmp

        Filesize

        7.1MB

      • memory/656-60-0x0000000000400000-0x0000000000B19000-memory.dmp

        Filesize

        7.1MB

      • memory/656-91-0x0000000000400000-0x0000000000B19000-memory.dmp

        Filesize

        7.1MB

      • memory/656-65-0x0000000000400000-0x0000000000B19000-memory.dmp

        Filesize

        7.1MB

      • memory/656-63-0x0000000000400000-0x0000000000B19000-memory.dmp

        Filesize

        7.1MB

      • memory/808-58-0x0000000000000000-mapping.dmp

      • memory/1144-83-0x0000000000400000-0x000000000096B000-memory.dmp

        Filesize

        5.4MB

      • memory/1144-89-0x0000000000400000-0x000000000096B000-memory.dmp

        Filesize

        5.4MB

      • memory/1144-90-0x0000000000401000-mapping.dmp

      • memory/1144-87-0x0000000000400000-0x000000000096B000-memory.dmp

        Filesize

        5.4MB

      • memory/1144-85-0x0000000000400000-0x000000000096B000-memory.dmp

        Filesize

        5.4MB

      • memory/1144-102-0x0000000000400000-0x000000000096B000-memory.dmp

        Filesize

        5.4MB

      • memory/1144-81-0x0000000000400000-0x000000000096B000-memory.dmp

        Filesize

        5.4MB

      • memory/1144-79-0x0000000000400000-0x000000000096B000-memory.dmp

        Filesize

        5.4MB

      • memory/1144-78-0x0000000000400000-0x000000000096B000-memory.dmp

        Filesize

        5.4MB

      • memory/1144-116-0x0000000000400000-0x000000000096B000-memory.dmp

        Filesize

        5.4MB

      • memory/1288-103-0x0000000000400000-0x00000000007E3000-memory.dmp

        Filesize

        3.9MB

      • memory/1288-98-0x0000000000400000-0x00000000007E3000-memory.dmp

        Filesize

        3.9MB

      • memory/1288-114-0x0000000000400000-0x00000000007E3000-memory.dmp

        Filesize

        3.9MB

      • memory/1288-124-0x0000000000400000-0x00000000007E3000-memory.dmp

        Filesize

        3.9MB

      • memory/1288-92-0x0000000000400000-0x00000000007E3000-memory.dmp

        Filesize

        3.9MB

      • memory/1288-104-0x0000000000400000-0x00000000007E3000-memory.dmp

        Filesize

        3.9MB

      • memory/1288-101-0x0000000000400000-0x00000000007E3000-memory.dmp

        Filesize

        3.9MB

      • memory/1288-94-0x0000000000400000-0x00000000007E3000-memory.dmp

        Filesize

        3.9MB

      • memory/1288-99-0x00000000007E1300-mapping.dmp

      • memory/1288-97-0x0000000000400000-0x00000000007E3000-memory.dmp

        Filesize

        3.9MB

      • memory/1612-54-0x0000000001000000-0x0000000001800000-memory.dmp

        Filesize

        8.0MB

      • memory/1612-57-0x0000000009120000-0x000000000986A000-memory.dmp

        Filesize

        7.3MB

      • memory/1612-56-0x00000000004A0000-0x00000000004AA000-memory.dmp

        Filesize

        40KB

      • memory/1612-55-0x00000000764C1000-0x00000000764C3000-memory.dmp

        Filesize

        8KB

      • memory/1668-113-0x0000000000000000-mapping.dmp

      • memory/1740-119-0x0000000000000000-mapping.dmp

      • memory/1952-108-0x0000000000000000-mapping.dmp

      • memory/1952-111-0x00000000009D0000-0x0000000000AA0000-memory.dmp

        Filesize

        832KB