Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-03-2024 11:52

General

  • Target

    b4a26290880d3fb80df39f433ebb0490.exe

  • Size

    2.6MB

  • MD5

    b4a26290880d3fb80df39f433ebb0490

  • SHA1

    68e61782384bac82a8b2fbbac8958a1a5dd3fe5d

  • SHA256

    49568dbced141895672057dc8244ce926ba027f7d04915a3a8504584f56b2c87

  • SHA512

    96438799bcf1a79f992ddd11ecedb7101a0c816b1eff1db78f2c1b48239a110a08860a1ff0f36aad883332cbb3ff690a842478dd4dffb5a94f35082404ba2182

  • SSDEEP

    49152:YCqoHMDzSvPB+6y3im0rc56ErvHHxjLH1yzJo9pPHq8jhWEgTi:YLosavPB9Frc56EjHxjLH1GipPN8Er

Malware Config

Extracted

Family

bitrat

Version

1.35

C2

storage.nsupdate.info:8973

Attributes
  • communication_password

    bf771c9d082071fe80b18bb678220682

  • tor_process

    tor

Signatures

  • BitRAT

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

  • CustAttr .NET packer 1 IoCs

    Detects CustAttr .NET packer in memory.

  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • UPX packed file 25 IoCs

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

  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b4a26290880d3fb80df39f433ebb0490.exe
    "C:\Users\Admin\AppData\Local\Temp\b4a26290880d3fb80df39f433ebb0490.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3432
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\b4a26290880d3fb80df39f433ebb0490.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2656
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QhNsxxGtGmp.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1604
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QhNsxxGtGmp" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD4FE.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:856
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QhNsxxGtGmp.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4528
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
        PID:3204
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
        2⤵
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4084
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4264 --field-trial-handle=2692,i,8678872182442199182,12502579059484928042,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:3808

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Execution

      Scheduled Task/Job

      1
      T1053

      Persistence

      Scheduled Task/Job

      1
      T1053

      Privilege Escalation

      Scheduled Task/Job

      1
      T1053

      Defense Evasion

      Virtualization/Sandbox Evasion

      2
      T1497

      Discovery

      Query Registry

      5
      T1012

      Virtualization/Sandbox Evasion

      2
      T1497

      System Information Discovery

      4
      T1082

      Peripheral Device Discovery

      1
      T1120

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
        Filesize

        2KB

        MD5

        3d086a433708053f9bf9523e1d87a4e8

        SHA1

        b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

        SHA256

        6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

        SHA512

        931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        Filesize

        18KB

        MD5

        92ec09cc1d169a88bfccf8b115aa1ed6

        SHA1

        8f5d436ae6fd23c3d359be3d851864ad91d55f45

        SHA256

        2310cbfe05b95767d4bcabf8cc68990a507191b7cd66f92db67c27b401c36c34

        SHA512

        fd378e820ece518bf627780555f886387d9096af7ce72c914052ec1d5e2c249ac06d09e34b74955100e4e1eebf499a3ce7caefe2f5224146a859648eb5c6fd36

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        Filesize

        18KB

        MD5

        206245bb214f33b5f2eab06b4fd32cc3

        SHA1

        80ff87a86f700f3dc931b2327cf18c1c9e871541

        SHA256

        682305e5bfac26405b065a2d4c1e2564198df1eb86f8a4fbd454edc7bbb56f34

        SHA512

        bca4540e7882d53cb7bb10393cb35586ff63949f2b977aca1b59a79665a81cfa7a2a1ea096d20e93a67ac0fdf2c8f282b111171f630dcff034019b41f18bb455

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_is1gwi31.d1n.ps1
        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\tmpD4FE.tmp
        Filesize

        1KB

        MD5

        1101e7fdaf9ab33b164151dd8d16409b

        SHA1

        a420c9bc8b48c106886e257aefcd148cd28c9435

        SHA256

        7ee5d02eef8c9f362a70ed334f7dd87707dd15b848217992a62520cb471d578d

        SHA512

        27f5ec609bb54b5fcc020785cab9eba226951ac98ef9a320441486b74ce4a4c533e3f3b5f506794dec2212c96d06ee6b18145bce574a8653147283cf69fba7bb

      • memory/1604-128-0x0000000007000000-0x000000000700E000-memory.dmp
        Filesize

        56KB

      • memory/1604-31-0x0000000004710000-0x0000000004720000-memory.dmp
        Filesize

        64KB

      • memory/1604-141-0x0000000074ED0000-0x0000000075680000-memory.dmp
        Filesize

        7.7MB

      • memory/1604-132-0x0000000004710000-0x0000000004720000-memory.dmp
        Filesize

        64KB

      • memory/1604-129-0x0000000007010000-0x0000000007024000-memory.dmp
        Filesize

        80KB

      • memory/1604-127-0x0000000004810000-0x0000000004821000-memory.dmp
        Filesize

        68KB

      • memory/1604-113-0x0000000074ED0000-0x0000000075680000-memory.dmp
        Filesize

        7.7MB

      • memory/1604-110-0x0000000006E40000-0x0000000006E4A000-memory.dmp
        Filesize

        40KB

      • memory/1604-82-0x0000000006A80000-0x0000000006AB2000-memory.dmp
        Filesize

        200KB

      • memory/1604-107-0x0000000006CC0000-0x0000000006D63000-memory.dmp
        Filesize

        652KB

      • memory/1604-84-0x000000006FD10000-0x000000006FD5C000-memory.dmp
        Filesize

        304KB

      • memory/1604-30-0x0000000074ED0000-0x0000000075680000-memory.dmp
        Filesize

        7.7MB

      • memory/1604-72-0x0000000004710000-0x0000000004720000-memory.dmp
        Filesize

        64KB

      • memory/1604-58-0x0000000005E00000-0x0000000005E4C000-memory.dmp
        Filesize

        304KB

      • memory/2656-81-0x0000000004680000-0x0000000004690000-memory.dmp
        Filesize

        64KB

      • memory/2656-17-0x0000000004680000-0x0000000004690000-memory.dmp
        Filesize

        64KB

      • memory/2656-142-0x0000000074ED0000-0x0000000075680000-memory.dmp
        Filesize

        7.7MB

      • memory/2656-83-0x0000000004680000-0x0000000004690000-memory.dmp
        Filesize

        64KB

      • memory/2656-23-0x0000000004A80000-0x0000000004AA2000-memory.dmp
        Filesize

        136KB

      • memory/2656-36-0x0000000005440000-0x0000000005794000-memory.dmp
        Filesize

        3.3MB

      • memory/2656-131-0x00000000070C0000-0x00000000070C8000-memory.dmp
        Filesize

        32KB

      • memory/2656-123-0x0000000007020000-0x00000000070B6000-memory.dmp
        Filesize

        600KB

      • memory/2656-109-0x0000000006B90000-0x0000000006BAA000-memory.dmp
        Filesize

        104KB

      • memory/2656-108-0x00000000074A0000-0x0000000007B1A000-memory.dmp
        Filesize

        6.5MB

      • memory/2656-24-0x00000000052F0000-0x0000000005356000-memory.dmp
        Filesize

        408KB

      • memory/2656-14-0x00000000044B0000-0x00000000044E6000-memory.dmp
        Filesize

        216KB

      • memory/2656-15-0x0000000074ED0000-0x0000000075680000-memory.dmp
        Filesize

        7.7MB

      • memory/2656-85-0x000000006FD10000-0x000000006FD5C000-memory.dmp
        Filesize

        304KB

      • memory/2656-18-0x0000000004CC0000-0x00000000052E8000-memory.dmp
        Filesize

        6.2MB

      • memory/2656-105-0x000000007F930000-0x000000007F940000-memory.dmp
        Filesize

        64KB

      • memory/2656-97-0x0000000006050000-0x000000000606E000-memory.dmp
        Filesize

        120KB

      • memory/2656-16-0x0000000004680000-0x0000000004690000-memory.dmp
        Filesize

        64KB

      • memory/2656-55-0x0000000005A70000-0x0000000005A8E000-memory.dmp
        Filesize

        120KB

      • memory/2656-70-0x0000000004680000-0x0000000004690000-memory.dmp
        Filesize

        64KB

      • memory/2656-71-0x0000000074ED0000-0x0000000075680000-memory.dmp
        Filesize

        7.7MB

      • memory/3432-13-0x0000000008960000-0x00000000089C6000-memory.dmp
        Filesize

        408KB

      • memory/3432-12-0x0000000008770000-0x00000000088E8000-memory.dmp
        Filesize

        1.5MB

      • memory/3432-7-0x00000000056C0000-0x0000000005716000-memory.dmp
        Filesize

        344KB

      • memory/3432-5-0x0000000005750000-0x0000000005760000-memory.dmp
        Filesize

        64KB

      • memory/3432-1-0x0000000000740000-0x00000000009DA000-memory.dmp
        Filesize

        2.6MB

      • memory/3432-2-0x0000000005390000-0x000000000542C000-memory.dmp
        Filesize

        624KB

      • memory/3432-3-0x00000000059E0000-0x0000000005F84000-memory.dmp
        Filesize

        5.6MB

      • memory/3432-6-0x0000000005470000-0x000000000547A000-memory.dmp
        Filesize

        40KB

      • memory/3432-8-0x0000000005740000-0x0000000005752000-memory.dmp
        Filesize

        72KB

      • memory/3432-53-0x0000000074ED0000-0x0000000075680000-memory.dmp
        Filesize

        7.7MB

      • memory/3432-4-0x00000000054D0000-0x0000000005562000-memory.dmp
        Filesize

        584KB

      • memory/3432-9-0x0000000074ED0000-0x0000000075680000-memory.dmp
        Filesize

        7.7MB

      • memory/3432-0-0x0000000074ED0000-0x0000000075680000-memory.dmp
        Filesize

        7.7MB

      • memory/3432-10-0x0000000005750000-0x0000000005760000-memory.dmp
        Filesize

        64KB

      • memory/3432-11-0x0000000007340000-0x0000000007500000-memory.dmp
        Filesize

        1.8MB

      • memory/4084-80-0x0000000071360000-0x0000000071399000-memory.dmp
        Filesize

        228KB

      • memory/4084-76-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-79-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-49-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-48-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-157-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-156-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-73-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-154-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-47-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-124-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-125-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-126-0x0000000071140000-0x0000000071179000-memory.dmp
        Filesize

        228KB

      • memory/4084-57-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-153-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-151-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-150-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-148-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-69-0x00000000713C0000-0x00000000713F9000-memory.dmp
        Filesize

        228KB

      • memory/4084-51-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-78-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-77-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-75-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-74-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-147-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-143-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-144-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-145-0x0000000000400000-0x00000000007E4000-memory.dmp
        Filesize

        3.9MB

      • memory/4084-146-0x0000000075790000-0x00000000757C9000-memory.dmp
        Filesize

        228KB

      • memory/4528-140-0x0000000074ED0000-0x0000000075680000-memory.dmp
        Filesize

        7.7MB

      • memory/4528-86-0x0000000002FF0000-0x0000000003000000-memory.dmp
        Filesize

        64KB

      • memory/4528-130-0x0000000007F60000-0x0000000007F7A000-memory.dmp
        Filesize

        104KB

      • memory/4528-54-0x0000000002FF0000-0x0000000003000000-memory.dmp
        Filesize

        64KB

      • memory/4528-56-0x0000000002FF0000-0x0000000003000000-memory.dmp
        Filesize

        64KB

      • memory/4528-122-0x000000007F010000-0x000000007F020000-memory.dmp
        Filesize

        64KB

      • memory/4528-111-0x000000006FD10000-0x000000006FD5C000-memory.dmp
        Filesize

        304KB

      • memory/4528-52-0x0000000074ED0000-0x0000000075680000-memory.dmp
        Filesize

        7.7MB