Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    06-07-2022 01:06

General

  • Target

    RFQ-07072022.exe

  • Size

    774KB

  • MD5

    e2097690a366910f7feb9145a0565784

  • SHA1

    592786f2d6c84a2a38882f43a3ac2eac9414774a

  • SHA256

    9a39f92f22837a2d1eabdc7b7f0eeff451de21fdf80261739301602ea3d9cdeb

  • SHA512

    b56e3bf6d1f42c2ab068fc5e16034fc273d97dac557ac222e46d5640947dbfa71b556d64ffd7b6c25f352c5dd98d300bbad725cc4428741de2ecf1e8fd421f17

Malware Config

Signatures

  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • suricata: ET MALWARE FormBook CnC Checkin (GET)

    suricata: ET MALWARE FormBook CnC Checkin (GET)

  • Xloader Payload 5 IoCs
  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • 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 41 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 28 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1200
    • C:\Users\Admin\AppData\Local\Temp\RFQ-07072022.exe
      "C:\Users\Admin\AppData\Local\Temp\RFQ-07072022.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2040
      • C:\Users\Admin\AppData\Local\Temp\RFQ-07072022.exe
        "C:\Users\Admin\AppData\Local\Temp\RFQ-07072022.exe"
        3⤵
        • Checks computer location settings
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1252
      • C:\Users\Admin\AppData\Local\Temp\day1.exe
        "C:\Users\Admin\AppData\Local\Temp\day1.exe"
        3⤵
        • Executes dropped EXE
        • Checks computer location settings
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:880
    • C:\Windows\SysWOW64\mstsc.exe
      "C:\Windows\SysWOW64\mstsc.exe"
      2⤵
      • Adds policy Run key to start application
      • Loads dropped DLL
      • Accesses Microsoft Outlook profiles
      • Suspicious use of SetThreadContext
      • Drops file in Program Files directory
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:1704
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\RFQ-07072022.exe"
        3⤵
        • Deletes itself
        PID:1748
      • C:\Program Files\Mozilla Firefox\Firefox.exe
        "C:\Program Files\Mozilla Firefox\Firefox.exe"
        3⤵
          PID:864
        • C:\Windows\SysWOW64\cmd.exe
          /c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
          3⤵
            PID:2036

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Persistence

      Registry Run Keys / Startup Folder

      1
      T1060

      Defense Evasion

      Modify Registry

      2
      T1112

      Credential Access

      Credentials in Files

      1
      T1081

      Discovery

      Query Registry

      1
      T1012

      System Information Discovery

      2
      T1082

      Collection

      Data from Local System

      1
      T1005

      Email Collection

      1
      T1114

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\DB1
        Filesize

        40KB

        MD5

        b608d407fc15adea97c26936bc6f03f6

        SHA1

        953e7420801c76393902c0d6bb56148947e41571

        SHA256

        b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

        SHA512

        cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

      • C:\Users\Admin\AppData\Local\Temp\day1.exe
        Filesize

        334KB

        MD5

        dfc9e8216a2eb273742db8d20c76c8df

        SHA1

        9df73a50a519f6020a5cfe5965384deb70c8fce9

        SHA256

        38959a2e9605148b7ca56302b91fb6241f2f16d9e65ea6b010863d8cc64e790a

        SHA512

        29354bde221ac02ab3831738603f610b5624b8a046d48ff6c100b92cc53f71a0cc4a0560118b583c43721075ea6140e843f33053c00d212ada9c2dd57150c4b2

      • C:\Users\Admin\AppData\Local\Temp\day1.exe
        Filesize

        334KB

        MD5

        dfc9e8216a2eb273742db8d20c76c8df

        SHA1

        9df73a50a519f6020a5cfe5965384deb70c8fce9

        SHA256

        38959a2e9605148b7ca56302b91fb6241f2f16d9e65ea6b010863d8cc64e790a

        SHA512

        29354bde221ac02ab3831738603f610b5624b8a046d48ff6c100b92cc53f71a0cc4a0560118b583c43721075ea6140e843f33053c00d212ada9c2dd57150c4b2

      • \Users\Admin\AppData\Local\Temp\day1.exe
        Filesize

        334KB

        MD5

        dfc9e8216a2eb273742db8d20c76c8df

        SHA1

        9df73a50a519f6020a5cfe5965384deb70c8fce9

        SHA256

        38959a2e9605148b7ca56302b91fb6241f2f16d9e65ea6b010863d8cc64e790a

        SHA512

        29354bde221ac02ab3831738603f610b5624b8a046d48ff6c100b92cc53f71a0cc4a0560118b583c43721075ea6140e843f33053c00d212ada9c2dd57150c4b2

      • \Users\Admin\AppData\Local\Temp\sqlite3.dll
        Filesize

        628KB

        MD5

        e3b107beaf9eaab93d09738d7dcb0946

        SHA1

        e625eac28fad8d1ed8544a35b9e54e596313b266

        SHA256

        8dccdffda1babc90e9917e7927c7387e4ca8e556f0bb94aace207c998a289223

        SHA512

        c08038d6c7c527ae1e13540358c2a117e5aa6275643b2d88e19e1dc7dd0aa4191c74598e385c57d854866c2de31688fb3640bc7e3a2303b8291154375398305a

      • memory/880-74-0x00000000008E0000-0x000000000092C000-memory.dmp
        Filesize

        304KB

      • memory/880-85-0x000000001C7A0000-0x000000001C8CE000-memory.dmp
        Filesize

        1.2MB

      • memory/880-89-0x000000001AE97000-0x000000001AEB6000-memory.dmp
        Filesize

        124KB

      • memory/880-88-0x0000000002390000-0x000000000240A000-memory.dmp
        Filesize

        488KB

      • memory/880-87-0x000000001AF10000-0x000000001AFC0000-memory.dmp
        Filesize

        704KB

      • memory/880-66-0x000000013F690000-0x000000013F6E6000-memory.dmp
        Filesize

        344KB

      • memory/880-86-0x000000001AE97000-0x000000001AEB6000-memory.dmp
        Filesize

        124KB

      • memory/880-73-0x0000000000810000-0x000000000083A000-memory.dmp
        Filesize

        168KB

      • memory/880-62-0x0000000000000000-mapping.dmp
      • memory/880-70-0x0000000002160000-0x00000000021DE000-memory.dmp
        Filesize

        504KB

      • memory/880-72-0x00000000007B0000-0x00000000007DE000-memory.dmp
        Filesize

        184KB

      • memory/1200-71-0x0000000004210000-0x00000000042D5000-memory.dmp
        Filesize

        788KB

      • memory/1200-82-0x0000000006050000-0x00000000061B4000-memory.dmp
        Filesize

        1.4MB

      • memory/1200-84-0x0000000006050000-0x00000000061B4000-memory.dmp
        Filesize

        1.4MB

      • memory/1252-69-0x0000000000430000-0x0000000000441000-memory.dmp
        Filesize

        68KB

      • memory/1252-68-0x0000000000870000-0x0000000000B73000-memory.dmp
        Filesize

        3.0MB

      • memory/1252-55-0x0000000000400000-0x000000000042C000-memory.dmp
        Filesize

        176KB

      • memory/1252-56-0x0000000000400000-0x000000000042C000-memory.dmp
        Filesize

        176KB

      • memory/1252-59-0x0000000000420020-mapping.dmp
      • memory/1252-58-0x0000000000400000-0x000000000042C000-memory.dmp
        Filesize

        176KB

      • memory/1252-67-0x0000000000400000-0x000000000042C000-memory.dmp
        Filesize

        176KB

      • memory/1704-81-0x0000000001F90000-0x0000000002020000-memory.dmp
        Filesize

        576KB

      • memory/1704-83-0x0000000000080000-0x00000000000AC000-memory.dmp
        Filesize

        176KB

      • memory/1704-75-0x0000000000000000-mapping.dmp
      • memory/1704-77-0x00000000005D0000-0x00000000006D4000-memory.dmp
        Filesize

        1.0MB

      • memory/1704-79-0x00000000021D0000-0x00000000024D3000-memory.dmp
        Filesize

        3.0MB

      • memory/1704-78-0x0000000000080000-0x00000000000AC000-memory.dmp
        Filesize

        176KB

      • memory/1748-80-0x0000000000000000-mapping.dmp
      • memory/2036-91-0x0000000000000000-mapping.dmp
      • memory/2040-54-0x0000000000BD0000-0x0000000000C98000-memory.dmp
        Filesize

        800KB

      • memory/2040-60-0x0000000075B71000-0x0000000075B73000-memory.dmp
        Filesize

        8KB