Analysis

  • max time kernel
    149s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    29-01-2024 06:54

General

  • Target

    ORDER#4510093083_PO_NEW_MATERIAL_JAN_2024.exe

  • Size

    474KB

  • MD5

    25ba729a1538d68ad33fe36ca0548181

  • SHA1

    1f87157d8d29b9d40b0e1ad6eb4617ba684c8f1a

  • SHA256

    75ef5c2c26d3ccc5719073b3a6f2e1a3124843ef91bf5b65f7afdab4a90f9d8d

  • SHA512

    86816fb6b3157e397a43828fcdc8dd7c0488ad7e634c49ecd13c12e28c0a88872f40c50287a4a01200638906a6781c6a38f6349374dc91b3c3c6f1ba5dfefbf9

  • SSDEEP

    12288:6a7r+1Jt7W+FFqQ5xrW2nPD4EdaMAboDO:Fr+1T7W+7q+CCP8DqO

Malware Config

Extracted

Family

remcos

Botnet

2024

C2

72.11.158.94:1604

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    vexplorers.exe

  • copy_folder

    vexplorers

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-800RNZ

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 6 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 11 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 accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 6 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Suspicious use of SetThreadContext 8 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ORDER#4510093083_PO_NEW_MATERIAL_JAN_2024.exe
    "C:\Users\Admin\AppData\Local\Temp\ORDER#4510093083_PO_NEW_MATERIAL_JAN_2024.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2232
    • C:\Users\Admin\AppData\Local\Temp\ORDER#4510093083_PO_NEW_MATERIAL_JAN_2024.exe
      "C:\Users\Admin\AppData\Local\Temp\ORDER#4510093083_PO_NEW_MATERIAL_JAN_2024.exe"
      2⤵
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of WriteProcessMemory
      PID:2812
      • C:\ProgramData\vexplorers\vexplorers.exe
        "C:\ProgramData\vexplorers\vexplorers.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • Drops file in Windows directory
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:2908
        • C:\ProgramData\vexplorers\vexplorers.exe
          "C:\ProgramData\vexplorers\vexplorers.exe"
          4⤵
          • Loads dropped DLL
          • Adds Run key to start application
          • Suspicious use of NtCreateThreadExHideFromDebugger
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious use of SetThreadContext
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:2180
          • C:\Windows\SysWOW64\svchost.exe
            svchost.exe
            5⤵
              PID:2060
            • C:\ProgramData\vexplorers\vexplorers.exe
              C:\ProgramData\vexplorers\vexplorers.exe /stext "C:\Users\Admin\AppData\Local\Temp\hloeqvbutgq"
              5⤵
              • Executes dropped EXE
              • Suspicious use of AdjustPrivilegeToken
              PID:2124
            • C:\Windows\SysWOW64\svchost.exe
              svchost.exe
              5⤵
                PID:1388
              • C:\ProgramData\vexplorers\vexplorers.exe
                C:\ProgramData\vexplorers\vexplorers.exe /stext "C:\Users\Admin\AppData\Local\Temp\eqjmpdrb"
                5⤵
                • Executes dropped EXE
                • Accesses Microsoft Outlook accounts
                PID:2484
              • C:\ProgramData\vexplorers\vexplorers.exe
                C:\ProgramData\vexplorers\vexplorers.exe /stext "C:\Users\Admin\AppData\Local\Temp\uovt"
                5⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                PID:2976
              • C:\Windows\SysWOW64\svchost.exe
                svchost.exe
                5⤵
                  PID:2164
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2180 -s 952
                  5⤵
                  • Loads dropped DLL
                  • Program crash
                  PID:952

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\vexplorers\vexplorers.exe
          Filesize

          474KB

          MD5

          25ba729a1538d68ad33fe36ca0548181

          SHA1

          1f87157d8d29b9d40b0e1ad6eb4617ba684c8f1a

          SHA256

          75ef5c2c26d3ccc5719073b3a6f2e1a3124843ef91bf5b65f7afdab4a90f9d8d

          SHA512

          86816fb6b3157e397a43828fcdc8dd7c0488ad7e634c49ecd13c12e28c0a88872f40c50287a4a01200638906a6781c6a38f6349374dc91b3c3c6f1ba5dfefbf9

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

          2B

          MD5

          f3b25701fe362ec84616a93a45ce9998

          SHA1

          d62636d8caec13f04e28442a0a6fa1afeb024bbb

          SHA256

          b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

          SHA512

          98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

        • C:\Users\Admin\AppData\Roaming\Besjlendes\Insistere.exe
          Filesize

          474KB

          MD5

          30cb39f5f2347ddc65dd0fc13b78474e

          SHA1

          b0631cd1214aef33f629214f2914c51d6982c64b

          SHA256

          9912739dc128c88cae2d33d256ca0d0dee577fd1c41ad4ad86e95831e0edafa1

          SHA512

          85fd98e07da2f5ae60ee0eb0c7d85923a271c706e5772dfb7402afabbc15e3e0a922e646a09ebaeb8ce12a0ee3c878290d121abaf1002373c3974055fe5e651a

        • C:\Users\Admin\yawlsman\knowhow\Aktiveringens\Dmtes.Slk
          Filesize

          230KB

          MD5

          47892ca7d11ae43e15e895ba1e61ba17

          SHA1

          3ae126e2a8057b1d3c4f8b5f34ba241cdd7c750a

          SHA256

          ec8e421820c2d1c945d51e28bacdc59405d206e0638d48bb79a5ac76fd5b6fb6

          SHA512

          191c2d3f4ab0f88291044c076dc23a950a73af8d4b5cdf5a3b9a55437d40fa0d995229e4f2f4360e6233bd3acdb29a0bb792c429b970571de7cd3f5f32123d8c

        • \ProgramData\vexplorers\vexplorers.exe
          Filesize

          36KB

          MD5

          8dbeacbac5ffebd0c91d0c95c3395e1d

          SHA1

          c85acde3c68f1f14e73dd1687cda77459451089c

          SHA256

          9a888ddef433a3029c056ee4cf90be0ca18bb6dc75d0b594d9234d7d479a9e3c

          SHA512

          382e0a2c2ab6dbe4e8e9f2d80e1abb32e67edb59974d6464de8567bfdbacc98d89df2899d2f640a3db110689dae283125681011b8106d43cf91fbdd9907c45d5

        • \ProgramData\vexplorers\vexplorers.exe
          Filesize

          45KB

          MD5

          84c82554d05dfb5b10a4cd8e6f493391

          SHA1

          3f463992ba4687c313c74dff524ea5fc2b32386e

          SHA256

          47ce5870bf7eab45f40bcb978efe2180040c09c3fc805331b9645e0945fa22ce

          SHA512

          ffa74a58043db3a4e0900a374342ec532939e98e896e494c0a242828b951515e9ce97a8fbd650b3ccce0fac42810bb049027a8fe3cd0e12eb47308753a406c13

        • \ProgramData\vexplorers\vexplorers.exe
          Filesize

          64KB

          MD5

          fa0f94d3c8243b72d736cf816c744977

          SHA1

          68a9d4bb88d45d878a055e0a3854223c33931582

          SHA256

          6dfd4908159c5045e7d01a45513d0695a1559d11322de4707a41b8caf0470940

          SHA512

          fd0288b69e8310a5d024bcecf7e0f9a9f7dc9b3c38b817c17e35859aff4875ec5e3806bb29720e0b1dfa8f78aead6afd076277b969815c3ca5337b6840050e8a

        • \ProgramData\vexplorers\vexplorers.exe
          Filesize

          31KB

          MD5

          155f8285db6b7ef0f13c4646538f5668

          SHA1

          fd040245bca1d2dceddba09c457b12714245da0f

          SHA256

          ae246ed4477d7d8739d300a524d6c8df0cb6935a827c2f2aa13826cf2e73f117

          SHA512

          3749bce8e3ee8c42ef9be4aa8c572e6fbc6ab088f0d0ee1eed35a1378c1bd9aba08c14c2527350dfa8d254393a1854a4f11c3191e43330721c5efb622095db79

        • \ProgramData\vexplorers\vexplorers.exe
          MD5

          d41d8cd98f00b204e9800998ecf8427e

          SHA1

          da39a3ee5e6b4b0d3255bfef95601890afd80709

          SHA256

          e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

          SHA512

          cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

        • \Users\Admin\AppData\Local\Temp\nso3B4D.tmp\System.dll
          Filesize

          11KB

          MD5

          3e6bf00b3ac976122f982ae2aadb1c51

          SHA1

          caab188f7fdc84d3fdcb2922edeeb5ed576bd31d

          SHA256

          4ff9b2678d698677c5d9732678f9cf53f17290e09d053691aac4cc6e6f595cbe

          SHA512

          1286f05e6a7e6b691f6e479638e7179897598e171b52eb3a3dc0e830415251069d29416b6d1ffc6d7dce8da5625e1479be06db9b7179e7776659c5c1ad6aa706

        • memory/1388-82-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
          Filesize

          4KB

        • memory/1388-94-0x0000000000400000-0x000000000049B000-memory.dmp
          Filesize

          620KB

        • memory/1388-96-0x0000000000400000-0x000000000049B000-memory.dmp
          Filesize

          620KB

        • memory/1388-108-0x0000000000400000-0x000000000049B000-memory.dmp
          Filesize

          620KB

        • memory/2060-69-0x0000000000400000-0x000000000049B000-memory.dmp
          Filesize

          620KB

        • memory/2060-67-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
          Filesize

          4KB

        • memory/2060-74-0x0000000000400000-0x000000000049B000-memory.dmp
          Filesize

          620KB

        • memory/2060-72-0x0000000000400000-0x000000000049B000-memory.dmp
          Filesize

          620KB

        • memory/2060-71-0x0000000000400000-0x000000000049B000-memory.dmp
          Filesize

          620KB

        • memory/2124-98-0x0000000000400000-0x0000000000424000-memory.dmp
          Filesize

          144KB

        • memory/2124-95-0x0000000000400000-0x0000000000424000-memory.dmp
          Filesize

          144KB

        • memory/2124-84-0x0000000000400000-0x0000000000424000-memory.dmp
          Filesize

          144KB

        • memory/2124-99-0x0000000000400000-0x0000000000424000-memory.dmp
          Filesize

          144KB

        • memory/2164-127-0x0000000000400000-0x000000000049B000-memory.dmp
          Filesize

          620KB

        • memory/2164-109-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
          Filesize

          4KB

        • memory/2164-114-0x0000000000400000-0x000000000049B000-memory.dmp
          Filesize

          620KB

        • memory/2180-57-0x0000000001510000-0x0000000004612000-memory.dmp
          Filesize

          49.0MB

        • memory/2180-62-0x00000000004A0000-0x0000000001502000-memory.dmp
          Filesize

          16.4MB

        • memory/2180-66-0x00000000004A0000-0x0000000001502000-memory.dmp
          Filesize

          16.4MB

        • memory/2180-61-0x0000000001510000-0x0000000004612000-memory.dmp
          Filesize

          49.0MB

        • memory/2180-58-0x0000000077C00000-0x0000000077DA9000-memory.dmp
          Filesize

          1.7MB

        • memory/2180-116-0x0000000034040000-0x0000000034059000-memory.dmp
          Filesize

          100KB

        • memory/2180-120-0x0000000034040000-0x0000000034059000-memory.dmp
          Filesize

          100KB

        • memory/2180-126-0x00000000004A0000-0x0000000001502000-memory.dmp
          Filesize

          16.4MB

        • memory/2232-21-0x0000000002630000-0x0000000005732000-memory.dmp
          Filesize

          49.0MB

        • memory/2232-16-0x0000000002630000-0x0000000005732000-memory.dmp
          Filesize

          49.0MB

        • memory/2232-17-0x0000000077C00000-0x0000000077DA9000-memory.dmp
          Filesize

          1.7MB

        • memory/2232-18-0x0000000077DF0000-0x0000000077EC6000-memory.dmp
          Filesize

          856KB

        • memory/2232-19-0x0000000010000000-0x0000000010006000-memory.dmp
          Filesize

          24KB

        • memory/2484-83-0x0000000000400000-0x0000000000457000-memory.dmp
          Filesize

          348KB

        • memory/2484-78-0x0000000000400000-0x0000000000457000-memory.dmp
          Filesize

          348KB

        • memory/2484-92-0x0000000000400000-0x0000000000457000-memory.dmp
          Filesize

          348KB

        • memory/2484-115-0x0000000000400000-0x0000000000457000-memory.dmp
          Filesize

          348KB

        • memory/2812-23-0x0000000077E26000-0x0000000077E27000-memory.dmp
          Filesize

          4KB

        • memory/2812-26-0x0000000001510000-0x0000000004612000-memory.dmp
          Filesize

          49.0MB

        • memory/2812-27-0x00000000004A0000-0x0000000001502000-memory.dmp
          Filesize

          16.4MB

        • memory/2812-32-0x0000000077DF0000-0x0000000077EC6000-memory.dmp
          Filesize

          856KB

        • memory/2812-28-0x00000000004A0000-0x0000000001502000-memory.dmp
          Filesize

          16.4MB

        • memory/2812-38-0x00000000004A0000-0x0000000001502000-memory.dmp
          Filesize

          16.4MB

        • memory/2812-51-0x0000000001510000-0x0000000004612000-memory.dmp
          Filesize

          49.0MB

        • memory/2812-24-0x0000000077DF0000-0x0000000077EC6000-memory.dmp
          Filesize

          856KB

        • memory/2812-20-0x0000000001510000-0x0000000004612000-memory.dmp
          Filesize

          49.0MB

        • memory/2812-22-0x0000000077C00000-0x0000000077DA9000-memory.dmp
          Filesize

          1.7MB

        • memory/2908-52-0x0000000002560000-0x0000000005662000-memory.dmp
          Filesize

          49.0MB

        • memory/2908-53-0x0000000077C00000-0x0000000077DA9000-memory.dmp
          Filesize

          1.7MB

        • memory/2908-54-0x0000000010000000-0x0000000010006000-memory.dmp
          Filesize

          24KB

        • memory/2908-56-0x0000000002560000-0x0000000005662000-memory.dmp
          Filesize

          49.0MB

        • memory/2976-81-0x0000000000400000-0x0000000000478000-memory.dmp
          Filesize

          480KB

        • memory/2976-75-0x0000000000400000-0x0000000000478000-memory.dmp
          Filesize

          480KB

        • memory/2976-87-0x0000000000400000-0x0000000000478000-memory.dmp
          Filesize

          480KB

        • memory/2976-105-0x0000000000400000-0x0000000000478000-memory.dmp
          Filesize

          480KB