Overview

overview

8

Static

static

7

7b11be2b7d...18.exe

windows7-x64

7

7b11be2b7d...18.exe

windows10-2004-x64

7

$PLUGINSDI...ns.dll

windows7-x64

3

$PLUGINSDI...ns.dll

windows10-2004-x64

3

$PLUGINSDI...LL.dll

windows7-x64

3

$PLUGINSDI...LL.dll

windows10-2004-x64

3

$PLUGINSDI...ss.dll

windows7-x64

3

$PLUGINSDI...ss.dll

windows10-2004-x64

3

7z.dll

windows7-x64

1

7z.dll

windows10-2004-x64

1

Addin/npTo...in.dll

windows7-x64

1

Addin/npTo...in.dll

windows10-2004-x64

1

Addin/tbIEAddin.dll

windows7-x64

1

Addin/tbIEAddin.dll

windows10-2004-x64

6

AppUnion.dll

windows7-x64

1

AppUnion.dll

windows10-2004-x64

1

Biz.dll

windows7-x64

1

Biz.dll

windows10-2004-x64

1

Codes/ffmpeg.exe

windows7-x64

7

Codes/ffmpeg.exe

windows10-2004-x64

7

Feedback.exe

windows7-x64

1

Feedback.exe

windows10-2004-x64

1

Hash72.dll

windows7-x64

1

Hash72.dll

windows10-2004-x64

3

Helper.exe

windows7-x64

1

Helper.exe

windows10-2004-x64

1

History.rtf

windows7-x64

4

History.rtf

windows10-2004-x64

1

ICSharpCod...ib.dll

windows7-x64

1

ICSharpCod...ib.dll

windows10-2004-x64

1

Launcher.exe

windows7-x64

8

Launcher.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    152s
  • max time network
    165s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/05/2024, 00:23

Sharing

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General

  • Target
    Launcher.exe
  • Size 80KB
  • Sample240528-appnhsgf72
  • SHA256 fbe0dfcd053290c88edb9404ef78a8c890a6cfea499c5e596e22c492478a1228
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10
adwarepersistencestealerupx

Malware Config

Signatures

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 IoCs
  • UPX packed file 4 IoCs

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

    upx
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Blocklisted process makes network request 1 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Installs/modifies Browser Helper Object 2 TTPs 4 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

    stealeradware
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

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

  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 62 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 9 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Launcher.exe
    "C:\Users\Admin\AppData\Local\Temp\Launcher.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1280
    • C:\Users\Admin\AppData\Local\Temp\Tongbu.exe
      "C:\Users\Admin\AppData\Local\Temp\Tongbu.exe"
      2⤵
      • Enumerates connected drives
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2632
      • C:\Users\Admin\AppData\Local\Temp\PkgInstaller.exe
        "C:\Users\Admin\AppData\Local\Temp\PkgInstaller.exe" /r
        3⤵
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:772
      • C:\Users\Admin\AppData\Local\Temp\Helper.exe
        "C:\Users\Admin\AppData\Local\Temp\Helper.exe" /r
        3⤵
        • Adds Run key to start application
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3972
        • C:\Windows\SysWOW64\regsvr32.exe
          "C:\Windows\System32\regsvr32.exe" -s "C:\Users\Admin\AppData\Local\Temp\Addin\tbIEAddin.dll
          4⤵
          • Installs/modifies Browser Helper Object
          • Modifies registry class
          PID:60
        • C:\Users\Admin\AppData\Local\Temp\tbMobileService.exe
          "C:\Users\Admin\AppData\Local\Temp\tbMobileService.exe"
          4⤵
          • Checks SCSI registry key(s)
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:4528
      • C:\Users\Admin\AppData\Local\Temp\Helper.exe
        "C:\Users\Admin\AppData\Local\Temp\Helper.exe" "/update" "/silent" "C:\Users\Admin\AppData\Local\Temp\Tongbu.exe" "Tongbu Assistant" "http://server.tongbu.com/update/otherupdate.aspx?v=2.3.2.2&type=tbzs20" "http://t.tongbu.com/tbzs20/ZSUpdateLog.aspx" "0"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:912
      • C:\Tongbu\PublicStaging\iTunes_64_12.0.1.26.exe
        "C:\Tongbu\PublicStaging\iTunes_64_12.0.1.26.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4212
        • C:\Windows\system32\msiexec.exe
          "C:\Windows\system32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\IXP125.TMP\iTunes64.msi" INSTALL_SUPPORT_PACKAGES=1
          4⤵
          • Blocklisted process makes network request
          • Enumerates connected drives
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          PID:4932
  • 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=1420 --field-trial-handle=1928,i,13242902252791919845,10377620236057253993,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4284
    • C:\Windows\system32\msiexec.exe
      C:\Windows\system32\msiexec.exe /V
      1⤵
      • Enumerates connected drives
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3536
      • C:\Windows\System32\MsiExec.exe
        C:\Windows\System32\MsiExec.exe -Embedding 1987F3C83FC45C36A116042D05304661 C
        2⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        PID:740

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          ServerSettings.ini
          • Path C:\Tongbu\ServerSettings.ini
          • Size 9KB
          • SHA256 e0ca6a1075c0299b24ed5b8ca2331062408696ee4da7e67f52e530f24c1e23ab
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          7B8944BA8AD0EFDF0E01A43EF62BECD0_99DDCE8596ED1EF95BA4A048C2A560A6
          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7B8944BA8AD0EFDF0E01A43EF62BECD0_99DDCE8596ED1EF95BA4A048C2A560A6
          • Size 1KB
          • SHA256 29abd90cccc109734016b2698f9e3ba48eeb11d374004ca0b87ce092fb63176b
          • MD5 SHA1 SHA512
          Submit Download

          7D266D9E1E69FA1EEFB9699B009B34C8_0A9BFDD75B598C2110CBF610C078E6E6
          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7D266D9E1E69FA1EEFB9699B009B34C8_0A9BFDD75B598C2110CBF610C078E6E6
          • Size 5B
          • SHA256 bebe2853a3485d1c2e5c5be4249183e0ddaff9f87de71652371700a89d937128
          • MD5 SHA1 SHA512
          Submit Download

          8DFDF057024880D7A081AFBF6D26B92F
          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8DFDF057024880D7A081AFBF6D26B92F
          • Size 834B
          • SHA256 1dc8a0fcbe260b77adfe5ad9aaac543239b2a0d9f4e1f3c2657beee4376ffee4
          • MD5 SHA1 SHA512
          Submit Download

          7B8944BA8AD0EFDF0E01A43EF62BECD0_99DDCE8596ED1EF95BA4A048C2A560A6
          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7B8944BA8AD0EFDF0E01A43EF62BECD0_99DDCE8596ED1EF95BA4A048C2A560A6
          • Size 408B
          • SHA256 b40ad265841ed7fad2b1b2d3f473e751034c657b99ee2550f45df037685868ab
          • MD5 SHA1 SHA512
          Submit Download

          7D266D9E1E69FA1EEFB9699B009B34C8_0A9BFDD75B598C2110CBF610C078E6E6
          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7D266D9E1E69FA1EEFB9699B009B34C8_0A9BFDD75B598C2110CBF610C078E6E6
          • Size 404B
          • SHA256 e5035d7d8db1d1fd816e5a66aa649c552c6ea7bb7fa73a952ecc17274914f912
          • MD5 SHA1 SHA512
          Submit Download

          8DFDF057024880D7A081AFBF6D26B92F
          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8DFDF057024880D7A081AFBF6D26B92F
          • Size 188B
          • SHA256 848a3e606f7e36acf0c2218c1e7dc20111ac770a949ef5deb558d2f17e29cab8
          • MD5 SHA1 SHA512
          Submit Download

          Helper.exe.log
          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\Helper.exe.log
          • Size 680B
          • SHA256 946608182b9ba55c8a62d12fb88e3e6b27f8966e45722a358a4efa91d6b55e34
          • MD5 SHA1 SHA512
          Submit Download

          WMSDKNS.XML
          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.XML
          • Size 9KB
          • SHA256 cb87767c4a384c24e4a0f88455f59101b1ae7b4fb8de8a5adb4136c5f7ee545b
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          SetupAdmin.exe
          • Path C:\Users\Admin\AppData\Local\Temp\IXP125.TMP\SetupAdmin.exe
          • Size 75KB
          • SHA256 e3ee066be4140da3a201a86373bf24ef4082e7ae1d86100ba066e62514f64dc8
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          MSI43A6.tmp
          • Path C:\Users\Admin\AppData\Local\Temp\MSI43A6.tmp
          • Size 105KB
          • SHA256 b1fa89983d792a8c005ca104230a145f46a6f72fbec800af9f631623710cb825
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          Settings.ini
          • Path C:\Users\Admin\Documents\Tongbu\Settings.ini
          • Size 35B
          • SHA256 14087c2d47e408b1230152f79c1767af4929fb3b299108e641c03903283b987a
          • MD5 SHA1 SHA512
          Submit Download

          memory/1280-6-0x0000000000400000-0x000000000042B000-memory.dmp
          Download

          memory/1280-1-0x0000000000400000-0x000000000042B000-memory.dmp
          Download

          memory/1280-0-0x0000000000400000-0x000000000042B000-memory.dmp
          Download

          memory/1280-2-0x0000000000400000-0x000000000042B000-memory.dmp
          Download

          memory/2632-21-0x0000000073900000-0x0000000073EB1000-memory.dmp
          Download

          memory/2632-125-0x0000000073900000-0x0000000073EB1000-memory.dmp
          Download

          memory/2632-19-0x0000000073900000-0x0000000073EB1000-memory.dmp
          Download

          memory/2632-18-0x0000000073900000-0x0000000073EB1000-memory.dmp
          Download

          memory/2632-25-0x0000000073900000-0x0000000073EB1000-memory.dmp
          Download

          memory/2632-5-0x0000000073900000-0x0000000073EB1000-memory.dmp
          Download

          memory/2632-4-0x0000000073900000-0x0000000073EB1000-memory.dmp
          Download

          memory/2632-20-0x0000000073902000-0x0000000073903000-memory.dmp
          Download

          memory/2632-3-0x0000000073902000-0x0000000073903000-memory.dmp
          Download

          memory/2632-138-0x0000000073900000-0x0000000073EB1000-memory.dmp
          Download

          memory/2632-155-0x0000000073900000-0x0000000073EB1000-memory.dmp
          Download

          memory/2632-177-0x0000000073900000-0x0000000073EB1000-memory.dmp
          Download

          memory/2632-22-0x0000000073900000-0x0000000073EB1000-memory.dmp
          Download

          memory/2632-26-0x0000000073900000-0x0000000073EB1000-memory.dmp
          Download