Analysis

  • max time kernel
    59s
  • max time network
    93s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    04/03/2025, 14:41

General

  • Target

    8ab19998dc86c27d89cf727862b67a397c5fcba459c86.exe

  • Size

    18.6MB

  • MD5

    b0bd2ee74ee6a80bdaf7227aee5fe33a

  • SHA1

    aaf9f4ac8dc4548367840e3ea6d48bd4035da36a

  • SHA256

    8ab19998dc86c27d89cf727862b67a397c5fcba459c86dac1f3415985ff98604

  • SHA512

    cfe337cefd297b56ac0ac8726d36e170ce1b4479f6fc7899c7b389b860d422a38d9cf4823188f5b1e423bbe066a4dc9d68ea299490260d0c5c876639dc17e52e

  • SSDEEP

    393216:iwU56qSfqFt7ju2tx+zIhCI27gLH0sDziV:iUSv7y2tx+zIhCI27gD0BV

Malware Config

Signatures

  • NetSupport

    NetSupport is a remote access tool sold as a legitimate system administration software.

  • Netsupport family
  • Downloads MZ/PE file 1 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 7 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

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

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

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8ab19998dc86c27d89cf727862b67a397c5fcba459c86.exe
    "C:\Users\Admin\AppData\Local\Temp\8ab19998dc86c27d89cf727862b67a397c5fcba459c86.exe"
    1⤵
    • Downloads MZ/PE file
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2792
    • C:\Users\Admin\AppData\Local\Temp\Tem6F85.tmp
      "C:\Users\Admin\AppData\Local\Temp\Tem6F85.tmp"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2784
      • C:\Windows\system32\cmd.exe
        cmd /c ""C:\Users\Public\Netstat\netsup.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:580
        • C:\Windows\system32\reg.exe
          REG ADD "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "Netstat" /t REG_SZ /F /D "C:\Users\Public\Netstat\bild.exe"
          4⤵
          • Adds Run key to start application
          PID:3044
        • C:\Users\Public\Netstat\bild.exe
          C:\Users\Public\Netstat\bild.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: CmdExeWriteProcessMemorySpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          PID:3068
    • C:\Users\Admin\AppData\Local\Temp\TemC86F.tmp
      "C:\Users\Admin\AppData\Local\Temp\TemC86F.tmp"
      2⤵
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      PID:1552
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c ping 127.0.0.1 && del "C:\Users\Admin\AppData\Local\Temp\8ab19998dc86c27d89cf727862b67a397c5fcba459c86.exe"
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2680
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2280

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    71KB

    MD5

    83142242e97b8953c386f988aa694e4a

    SHA1

    833ed12fc15b356136dcdd27c61a50f59c5c7d50

    SHA256

    d72761e1a334a754ce8250e3af7ea4bf25301040929fd88cf9e50b4a9197d755

    SHA512

    bb6da177bd16d163f377d9b4c63f6d535804137887684c113cc2f643ceab4f34338c06b5a29213c23d375e95d22ef417eac928822dfb3688ce9e2de9d5242d10

  • C:\Users\Admin\AppData\Local\Temp\Tar278.tmp

    Filesize

    183KB

    MD5

    109cab5505f5e065b63d01361467a83b

    SHA1

    4ed78955b9272a9ed689b51bf2bf4a86a25e53fc

    SHA256

    ea6b7f51e85835c09259d9475a7d246c3e764ad67c449673f9dc97172c351673

    SHA512

    753a6da5d6889dd52f40208e37f2b8c185805ef81148682b269fff5aa84a46d710fe0ebfe05bce625da2e801e1c26745998a41266fa36bf47bc088a224d730cc

  • C:\Users\Public\Netstat\MSVCR100.dll

    Filesize

    755KB

    MD5

    0e37fbfa79d349d672456923ec5fbbe3

    SHA1

    4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

    SHA256

    8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

    SHA512

    2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

  • C:\Users\Public\Netstat\NSM.LIC

    Filesize

    257B

    MD5

    7067af414215ee4c50bfcd3ea43c84f0

    SHA1

    c331d410672477844a4ca87f43a14e643c863af9

    SHA256

    2050cc232710a2ea6a207bc78d1eac66a4042f2ee701cdfeee5de3ddcdc31d12

    SHA512

    17b888087192bcea9f56128d0950423b1807e294d1c4f953d1bf0f5bd08e5f8e35afeee584ebf9233bfc44e0723db3661911415798159ac118c8a42aaf0b902f

  • C:\Users\Public\Netstat\PCICL32.dll

    Filesize

    3.6MB

    MD5

    00587238d16012152c2e951a087f2cc9

    SHA1

    c4e27a43075ce993ff6bb033360af386b2fc58ff

    SHA256

    63aa18c32af7144156e7ee2d5ba0fa4f5872a7deb56894f6f96505cbc9afe6f8

    SHA512

    637950a1f78d3f3d02c30a49a16e91cf3dfccc59104041876789bd7fdf9224d187209547766b91404c67319e13d1606da7cec397315495962cbf3e2ccd5f1226

  • C:\Users\Public\Netstat\bild.exe

    Filesize

    103KB

    MD5

    8d9709ff7d9c83bd376e01912c734f0a

    SHA1

    e3c92713ce1d7eaa5e2b1fabeb06cdc0bb499294

    SHA256

    49a568f8ac11173e3a0d76cff6bc1d4b9bdf2c35c6d8570177422f142dcfdbe3

    SHA512

    042ad89ed2e15671f5df67766d11e1fa7ada8241d4513e7c8f0d77b983505d63ebfb39fefa590a2712b77d7024c04445390a8bf4999648f83dbab6b0f04eb2ee

  • C:\Users\Public\Netstat\client32.ini

    Filesize

    701B

    MD5

    8efeec1bfb9bfeaabe03eebaaa79a9c3

    SHA1

    493cb8e67a23ab2ff121c649cb8351512b4c2a92

    SHA256

    1027284ed26b11f319a44da5e3ce94799adcf3811ac1feb9b97d301688455bc8

    SHA512

    5b3427a224887ce51011e941b1bb5e5c2ae8c583a30d5cf441d76d687ac9deeb7b35258bb2ed53a4774b11d777f70cc7e88b1773847de6a566e3b14511dc42d7

  • C:\Users\Public\Netstat\netsup.bat

    Filesize

    161B

    MD5

    bb8869e7e80234a30633bd0301b57deb

    SHA1

    13790ad2bc012431324093b16c19b1e532c94e63

    SHA256

    d6f183097bf12a7f68632efecc6dc7ddac16002839229502b32cd40826dd472c

    SHA512

    7d043054fcde4c73e9e5988330a94a737360adf1b0d806efc4660d1e336e27a66149494b611969a29b873d76bc4b1278b47d1efc27a9c7bd50a1f8cdf346937a

  • C:\Users\Public\Netstat\pcicapi.dll

    Filesize

    32KB

    MD5

    dcde2248d19c778a41aa165866dd52d0

    SHA1

    7ec84be84fe23f0b0093b647538737e1f19ebb03

    SHA256

    9074fd40ea6a0caa892e6361a6a4e834c2e51e6e98d1ffcda7a9a537594a6917

    SHA512

    c5d170d420f1aeb9bcd606a282af6e8da04ae45c83d07faaacb73ff2e27f4188b09446ce508620124f6d9b447a40a23620cfb39b79f02b04bb9e513866352166

  • C:\Users\Public\Netstat\pcichek.dll

    Filesize

    18KB

    MD5

    a0b9388c5f18e27266a31f8c5765b263

    SHA1

    906f7e94f841d464d4da144f7c858fa2160e36db

    SHA256

    313117e723dda6ea3911faacd23f4405003fb651c73de8deff10b9eb5b4a058a

    SHA512

    6051a0b22af135b4433474dc7c6f53fb1c06844d0a30ed596a3c6c80644df511b023e140c4878867fa2578c79695fac2eb303aea87c0ecfc15a4ad264bd0b3cd

  • \Users\Admin\AppData\Local\Temp\Tem6F85.tmp

    Filesize

    6.9MB

    MD5

    2322ac83b1b48820c31cef82f25ecc74

    SHA1

    a02f699bf0a195a38ab75e7ab19f152cebf43b3c

    SHA256

    57d92ae16c8766995a28d8a6b9f579739324d9e090bea1ed0ed99a4ea8564933

    SHA512

    bcdac58c880379ff9d8a57907e570a10b58d86970ba5c5f332de5816ab4f49de32328cbd2cad8ea2db755cb442c421601c393d63ff23b938b673a716b2fc4f7d

  • \Users\Admin\AppData\Local\Temp\TemC86F.tmp

    Filesize

    19.8MB

    MD5

    2e13897f7dc027359d31c0508c4f4354

    SHA1

    a9396b354afefb61d96c10b2b69e4685132c5632

    SHA256

    908237ac46dbb57e8b4b208c3002052145368dcabd0b5822f6b2295bc87e6f88

    SHA512

    1bb34a2146682fd776d321851df3fd20096dff49ed48a2133e37176df36f4eee38cec89c66ce0fe8de339ef0258cdde3220eccf0ff4fd8c2dce333dee3c6bed0

  • \Users\Public\Netstat\HTCTL32.DLL

    Filesize

    320KB

    MD5

    2d3b207c8a48148296156e5725426c7f

    SHA1

    ad464eb7cf5c19c8a443ab5b590440b32dbc618f

    SHA256

    edfe2b923bfb5d1088de1611401f5c35ece91581e71503a5631647ac51f7d796

    SHA512

    55c791705993b83c9b26a8dbd545d7e149c42ee358ecece638128ee271e85b4fdbfd6fbae61d13533bf39ae752144e2cc2c5edcda955f18c37a785084db0860c

  • memory/1552-126-0x0000000000100000-0x0000000000101000-memory.dmp

    Filesize

    4KB

  • memory/1552-124-0x0000000000100000-0x0000000000101000-memory.dmp

    Filesize

    4KB

  • memory/1552-121-0x00000000000F0000-0x00000000000F1000-memory.dmp

    Filesize

    4KB

  • memory/1552-119-0x00000000000F0000-0x00000000000F1000-memory.dmp

    Filesize

    4KB

  • memory/1552-128-0x0000000000C10000-0x0000000002B22000-memory.dmp

    Filesize

    31.1MB

  • memory/2792-16-0x0000000000150000-0x0000000000151000-memory.dmp

    Filesize

    4KB

  • memory/2792-15-0x0000000000130000-0x0000000000131000-memory.dmp

    Filesize

    4KB

  • memory/2792-1-0x0000000000110000-0x0000000000111000-memory.dmp

    Filesize

    4KB

  • memory/2792-44-0x0000000000BF0000-0x0000000002907000-memory.dmp

    Filesize

    29.1MB

  • memory/2792-43-0x0000000000BF0000-0x0000000002907000-memory.dmp

    Filesize

    29.1MB

  • memory/2792-45-0x0000000000BF0000-0x0000000002907000-memory.dmp

    Filesize

    29.1MB

  • memory/2792-5-0x0000000000110000-0x0000000000111000-memory.dmp

    Filesize

    4KB

  • memory/2792-55-0x0000000000C09000-0x0000000001666000-memory.dmp

    Filesize

    10.4MB

  • memory/2792-6-0x0000000000120000-0x0000000000121000-memory.dmp

    Filesize

    4KB

  • memory/2792-8-0x0000000000120000-0x0000000000121000-memory.dmp

    Filesize

    4KB

  • memory/2792-10-0x0000000000120000-0x0000000000121000-memory.dmp

    Filesize

    4KB

  • memory/2792-11-0x0000000000130000-0x0000000000131000-memory.dmp

    Filesize

    4KB

  • memory/2792-13-0x0000000000130000-0x0000000000131000-memory.dmp

    Filesize

    4KB

  • memory/2792-3-0x0000000000110000-0x0000000000111000-memory.dmp

    Filesize

    4KB

  • memory/2792-0-0x0000000000C09000-0x0000000001666000-memory.dmp

    Filesize

    10.4MB

  • memory/2792-18-0x0000000000150000-0x0000000000151000-memory.dmp

    Filesize

    4KB

  • memory/2792-20-0x0000000000150000-0x0000000000151000-memory.dmp

    Filesize

    4KB

  • memory/2792-23-0x0000000000160000-0x0000000000161000-memory.dmp

    Filesize

    4KB

  • memory/2792-25-0x0000000000160000-0x0000000000161000-memory.dmp

    Filesize

    4KB

  • memory/2792-28-0x0000000000170000-0x0000000000171000-memory.dmp

    Filesize

    4KB

  • memory/2792-30-0x0000000000170000-0x0000000000171000-memory.dmp

    Filesize

    4KB

  • memory/2792-33-0x0000000000180000-0x0000000000181000-memory.dmp

    Filesize

    4KB

  • memory/2792-35-0x0000000000180000-0x0000000000181000-memory.dmp

    Filesize

    4KB

  • memory/2792-38-0x00000000001A0000-0x00000000001A1000-memory.dmp

    Filesize

    4KB

  • memory/2792-40-0x00000000001A0000-0x00000000001A1000-memory.dmp

    Filesize

    4KB

  • memory/2792-166-0x0000000000C09000-0x0000000001666000-memory.dmp

    Filesize

    10.4MB

  • memory/2792-167-0x0000000000BF0000-0x0000000002907000-memory.dmp

    Filesize

    29.1MB