Analysis

  • max time kernel
    143s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    16-06-2023 11:19

General

  • Target

    Payment Application.xls

  • Size

    3.0MB

  • MD5

    47bbcc7603e9979b6dd4e9b4a50042f3

  • SHA1

    ad926408828c4798c897a3eb2ac993be28fd28ea

  • SHA256

    023587dfb8efcb39cb353a413c2773cfded347e5d8aec8086ececf395725237a

  • SHA512

    208615995d1972f38718c6855084541f15ebb72d5350d827ceebf4392fe0ab0a8a3ece746508c62460b30c1b2419c32c336f0e4daff065d4aa250a502f291adb

  • SSDEEP

    98304:Aor+AMF11Rtk25B9KheI8xC0sEFzwMpLte:/0/3Rl8+wMD

Malware Config

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

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

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

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

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

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\Payment Application.xls"
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:1596
  • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
    "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
    1⤵
    • Blocklisted process makes network request
    • Loads dropped DLL
    • Launches Equation Editor
    • Suspicious use of WriteProcessMemory
    PID:1156
    • C:\Users\Public\map_root.exe
      "C:\Users\Public\map_root.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1092
      • C:\Users\Public\map_root.exe
        "C:\Users\Public\map_root.exe"
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:836

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\BDE21BCB.emf

    Filesize

    3.0MB

    MD5

    59f3d07bc66de65489f680c50ad5960a

    SHA1

    af661e2447f90b9fcc26b96b494c434ea5976c06

    SHA256

    bdde021e0202061d3e4ce0b1820a350f2f95471e66b81c86c1a9234301fea60e

    SHA512

    4002fd18f5dead7a9c0c3e2dabbc6ae5586497eff717c1712435dec9c233be262d90b7d37cd0e81b742c4cafafa8799f46076eaa2c2c64f94e547c50db1fd987

  • C:\Users\Admin\AppData\Local\Temp\nso3160.tmp\hjesprqai.dll

    Filesize

    41KB

    MD5

    d66c6bd5f09b733a71277ab0836c887b

    SHA1

    eea61117bc1e2c7e1bf899cf87d8076d1ce3ebec

    SHA256

    8d42068df5c959e7ff7f25f3b9619c5c5bfb4c90de4a522eb32282db89481f32

    SHA512

    871a9504abd9ecddd23b18d48d25cc167745c52782d233bd4226792e3028a0b9796444bc488cde1e73aefd2c266a76297e61dc0f47514c43dd05c1ca3b39f59b

  • C:\Users\Public\map_root.exe

    Filesize

    283KB

    MD5

    02f7c729e7344aad545091d1bc408658

    SHA1

    526b6336435336c2b146058b2ee0f13f2bc50868

    SHA256

    5750b391f7520164d06daa0762ca20d8ce5ee97c335b06d2966098555069cc68

    SHA512

    ae8ff7a66b1eca06b318b23bfc27e8e1ee331007e359b7a9cf526c9ef85641447fc0aaf4693621609af498df2a3a2a43eeae6cab9137c97ffc6955b2574d891e

  • C:\Users\Public\map_root.exe

    Filesize

    283KB

    MD5

    02f7c729e7344aad545091d1bc408658

    SHA1

    526b6336435336c2b146058b2ee0f13f2bc50868

    SHA256

    5750b391f7520164d06daa0762ca20d8ce5ee97c335b06d2966098555069cc68

    SHA512

    ae8ff7a66b1eca06b318b23bfc27e8e1ee331007e359b7a9cf526c9ef85641447fc0aaf4693621609af498df2a3a2a43eeae6cab9137c97ffc6955b2574d891e

  • C:\Users\Public\map_root.exe

    Filesize

    283KB

    MD5

    02f7c729e7344aad545091d1bc408658

    SHA1

    526b6336435336c2b146058b2ee0f13f2bc50868

    SHA256

    5750b391f7520164d06daa0762ca20d8ce5ee97c335b06d2966098555069cc68

    SHA512

    ae8ff7a66b1eca06b318b23bfc27e8e1ee331007e359b7a9cf526c9ef85641447fc0aaf4693621609af498df2a3a2a43eeae6cab9137c97ffc6955b2574d891e

  • C:\Users\Public\map_root.exe

    Filesize

    283KB

    MD5

    02f7c729e7344aad545091d1bc408658

    SHA1

    526b6336435336c2b146058b2ee0f13f2bc50868

    SHA256

    5750b391f7520164d06daa0762ca20d8ce5ee97c335b06d2966098555069cc68

    SHA512

    ae8ff7a66b1eca06b318b23bfc27e8e1ee331007e359b7a9cf526c9ef85641447fc0aaf4693621609af498df2a3a2a43eeae6cab9137c97ffc6955b2574d891e

  • \Users\Admin\AppData\Local\Temp\nso3160.tmp\hjesprqai.dll

    Filesize

    41KB

    MD5

    d66c6bd5f09b733a71277ab0836c887b

    SHA1

    eea61117bc1e2c7e1bf899cf87d8076d1ce3ebec

    SHA256

    8d42068df5c959e7ff7f25f3b9619c5c5bfb4c90de4a522eb32282db89481f32

    SHA512

    871a9504abd9ecddd23b18d48d25cc167745c52782d233bd4226792e3028a0b9796444bc488cde1e73aefd2c266a76297e61dc0f47514c43dd05c1ca3b39f59b

  • \Users\Public\map_root.exe

    Filesize

    283KB

    MD5

    02f7c729e7344aad545091d1bc408658

    SHA1

    526b6336435336c2b146058b2ee0f13f2bc50868

    SHA256

    5750b391f7520164d06daa0762ca20d8ce5ee97c335b06d2966098555069cc68

    SHA512

    ae8ff7a66b1eca06b318b23bfc27e8e1ee331007e359b7a9cf526c9ef85641447fc0aaf4693621609af498df2a3a2a43eeae6cab9137c97ffc6955b2574d891e

  • memory/836-95-0x00000000005E0000-0x0000000000610000-memory.dmp

    Filesize

    192KB

  • memory/836-90-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/836-94-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/836-96-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/836-97-0x0000000004690000-0x00000000046D0000-memory.dmp

    Filesize

    256KB

  • memory/1092-89-0x0000000001E40000-0x0000000001E42000-memory.dmp

    Filesize

    8KB

  • memory/1596-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1596-127-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB