Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/12/2023, 17:36

General

  • Target

    fc4fb593fdecc5e6c82c0c98decab2ccd213153078489787712a082c299d20cd.exe

  • Size

    1.0MB

  • MD5

    c200bdcd9c827ad9c878f61a6e80b2ee

  • SHA1

    730d6b83b8af8d7b6740020d0e44466c2192f6ee

  • SHA256

    fc4fb593fdecc5e6c82c0c98decab2ccd213153078489787712a082c299d20cd

  • SHA512

    a5dd81fe25aa643c94f5e098e17fc2ce9a929141ea3a470245986e3e5fb8d9da8c014f6649a70816f8d1338b043a09caea69193f627f8c1bf351becb8d76de43

  • SSDEEP

    24576:KgCKtD/61Idz9KOXdI0YBt68T1U3FMztS5aV3+2rN87:X6Kzj+0YBt68+3FMKaO2h87

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

107.175.229.139:8087

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-IZFV1M

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • 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
  • Checks computer location settings 2 TTPs 1 IoCs

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

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

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fc4fb593fdecc5e6c82c0c98decab2ccd213153078489787712a082c299d20cd.exe
    "C:\Users\Admin\AppData\Local\Temp\fc4fb593fdecc5e6c82c0c98decab2ccd213153078489787712a082c299d20cd.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5048
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\fc4fb593fdecc5e6c82c0c98decab2ccd213153078489787712a082c299d20cd.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:420
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GwdCcjuxCiQA" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8A10.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1752
    • C:\Users\Admin\AppData\Local\Temp\fc4fb593fdecc5e6c82c0c98decab2ccd213153078489787712a082c299d20cd.exe
      "C:\Users\Admin\AppData\Local\Temp\fc4fb593fdecc5e6c82c0c98decab2ccd213153078489787712a082c299d20cd.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4992
      • C:\Users\Admin\AppData\Local\Temp\fc4fb593fdecc5e6c82c0c98decab2ccd213153078489787712a082c299d20cd.exe
        C:\Users\Admin\AppData\Local\Temp\fc4fb593fdecc5e6c82c0c98decab2ccd213153078489787712a082c299d20cd.exe /stext "C:\Users\Admin\AppData\Local\Temp\nzrmefrvlp"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2804
      • C:\Users\Admin\AppData\Local\Temp\fc4fb593fdecc5e6c82c0c98decab2ccd213153078489787712a082c299d20cd.exe
        C:\Users\Admin\AppData\Local\Temp\fc4fb593fdecc5e6c82c0c98decab2ccd213153078489787712a082c299d20cd.exe /stext "C:\Users\Admin\AppData\Local\Temp\cembln"
        3⤵
        • Accesses Microsoft Outlook accounts
        PID:4444
      • C:\Users\Admin\AppData\Local\Temp\fc4fb593fdecc5e6c82c0c98decab2ccd213153078489787712a082c299d20cd.exe
        C:\Users\Admin\AppData\Local\Temp\fc4fb593fdecc5e6c82c0c98decab2ccd213153078489787712a082c299d20cd.exe /stext "C:\Users\Admin\AppData\Local\Temp\acgjluvabzbeasiypitglgvrwekumdbvut"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:2428
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\GwdCcjuxCiQA.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:528

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\remcos\logs.dat

          Filesize

          144B

          MD5

          2bbe865b94b15023d1713a384dab3644

          SHA1

          5a7fee6574205441cc70ec2bc00fd678eabbbc07

          SHA256

          a1a719eda331cdc9c086951e35ae8df0662e85575b0757b730e2b711ce05d027

          SHA512

          d4ee914ff7f44f84acab2b0a273273036e1073d842dcea6e2ebafc4fd966cf61a0fae75e6b3fcf4a6f1e9fb90f88bf81c4aab3a1340b658813693264245917db

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

          Filesize

          2KB

          MD5

          968cb9309758126772781b83adb8a28f

          SHA1

          8da30e71accf186b2ba11da1797cf67f8f78b47c

          SHA256

          92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

          SHA512

          4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

          Filesize

          18KB

          MD5

          0c76a8ad7106df206bf42fac3793e97f

          SHA1

          2a44867a679fae10a3a87f8dd352a72244c98daa

          SHA256

          63b932050a6e219667803e760f6051fdb59608635d8d96b3c7e70339a697ee71

          SHA512

          fc180cc80d360c708fe9969e7a5fdf30ff0bf9096303b4459267d2ffdae31dfb0d4b8bcb029001035191cb68b6dece93898e194c99d4b8728f484684c9bc5f17

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2m4mpe5v.vnp.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\acgjluvabzbeasiypitglgvrwekumdbvut

          Filesize

          4KB

          MD5

          3772aaa65e9c5c579bf2a54fb9ab6265

          SHA1

          61196978558fc89e2fed95eed55b4dfdaf984c3a

          SHA256

          55ffc234341ed4f8be0fe8c2b5971f4b2954abdba5f452dcd9c18dba860ca2d0

          SHA512

          01da8983568c857a0c5b3c47e10abcad5cee8a414056577a5f233e3363b4d7f40b72359d7b71830953c03ccf80a929c0d81ce54df3f1f51fd753c3d5b55e0bae

        • C:\Users\Admin\AppData\Local\Temp\tmp8A10.tmp

          Filesize

          1KB

          MD5

          4e93b25fb2893c67681f775594d3150d

          SHA1

          b8c2fdb3cf3aba3fdb6d2efb0b19005031bd71b1

          SHA256

          ff70ed8c74cd6b837b69cf8b94fda4831dc7bb8250be307a353766c3c9e4c9b7

          SHA512

          caf7aac1a5a2e198e608c4931e766ec64353065aa8c9f6dc95bc51b4d9503e260584839c821838131cb3232a2ad5ce240544f4abcdee8320f4d5476ab901d534

        • memory/420-21-0x0000000004C90000-0x0000000004CF6000-memory.dmp

          Filesize

          408KB

        • memory/420-98-0x00000000071A0000-0x00000000071AE000-memory.dmp

          Filesize

          56KB

        • memory/420-90-0x00000000047D0000-0x00000000047E0000-memory.dmp

          Filesize

          64KB

        • memory/420-107-0x0000000074AF0000-0x00000000752A0000-memory.dmp

          Filesize

          7.7MB

        • memory/420-77-0x0000000006BD0000-0x0000000006BEE000-memory.dmp

          Filesize

          120KB

        • memory/420-15-0x0000000004670000-0x00000000046A6000-memory.dmp

          Filesize

          216KB

        • memory/420-16-0x0000000004E10000-0x0000000005438000-memory.dmp

          Filesize

          6.2MB

        • memory/420-65-0x00000000735C0000-0x000000007360C000-memory.dmp

          Filesize

          304KB

        • memory/420-61-0x000000007F150000-0x000000007F160000-memory.dmp

          Filesize

          64KB

        • memory/420-91-0x00000000075B0000-0x0000000007C2A000-memory.dmp

          Filesize

          6.5MB

        • memory/420-17-0x0000000074AF0000-0x00000000752A0000-memory.dmp

          Filesize

          7.7MB

        • memory/420-18-0x00000000047D0000-0x00000000047E0000-memory.dmp

          Filesize

          64KB

        • memory/420-86-0x00000000047D0000-0x00000000047E0000-memory.dmp

          Filesize

          64KB

        • memory/420-96-0x00000000071F0000-0x0000000007286000-memory.dmp

          Filesize

          600KB

        • memory/420-97-0x0000000007170000-0x0000000007181000-memory.dmp

          Filesize

          68KB

        • memory/420-63-0x0000000006BF0000-0x0000000006C22000-memory.dmp

          Filesize

          200KB

        • memory/528-33-0x00000000052A0000-0x00000000052B0000-memory.dmp

          Filesize

          64KB

        • memory/528-92-0x0000000007940000-0x000000000795A000-memory.dmp

          Filesize

          104KB

        • memory/528-100-0x0000000007C80000-0x0000000007C9A000-memory.dmp

          Filesize

          104KB

        • memory/528-58-0x0000000006660000-0x00000000066AC000-memory.dmp

          Filesize

          304KB

        • memory/528-101-0x0000000007C60000-0x0000000007C68000-memory.dmp

          Filesize

          32KB

        • memory/528-99-0x0000000007B80000-0x0000000007B94000-memory.dmp

          Filesize

          80KB

        • memory/528-44-0x0000000006120000-0x0000000006474000-memory.dmp

          Filesize

          3.3MB

        • memory/528-66-0x000000007F7E0000-0x000000007F7F0000-memory.dmp

          Filesize

          64KB

        • memory/528-89-0x0000000007600000-0x00000000076A3000-memory.dmp

          Filesize

          652KB

        • memory/528-88-0x00000000052A0000-0x00000000052B0000-memory.dmp

          Filesize

          64KB

        • memory/528-22-0x0000000074AF0000-0x00000000752A0000-memory.dmp

          Filesize

          7.7MB

        • memory/528-57-0x0000000006610000-0x000000000662E000-memory.dmp

          Filesize

          120KB

        • memory/528-34-0x00000000052A0000-0x00000000052B0000-memory.dmp

          Filesize

          64KB

        • memory/528-108-0x0000000074AF0000-0x00000000752A0000-memory.dmp

          Filesize

          7.7MB

        • memory/528-23-0x0000000005FB0000-0x0000000006016000-memory.dmp

          Filesize

          408KB

        • memory/528-93-0x00000000079B0000-0x00000000079BA000-memory.dmp

          Filesize

          40KB

        • memory/528-20-0x0000000005530000-0x0000000005552000-memory.dmp

          Filesize

          136KB

        • memory/528-67-0x00000000735C0000-0x000000007360C000-memory.dmp

          Filesize

          304KB

        • memory/2428-117-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/2428-109-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/2428-112-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/2428-130-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/2804-124-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/2804-128-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/2804-126-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/2804-114-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/4444-110-0x0000000000400000-0x0000000000457000-memory.dmp

          Filesize

          348KB

        • memory/4444-127-0x0000000000400000-0x0000000000457000-memory.dmp

          Filesize

          348KB

        • memory/4444-120-0x0000000000400000-0x0000000000457000-memory.dmp

          Filesize

          348KB

        • memory/4444-115-0x0000000000400000-0x0000000000457000-memory.dmp

          Filesize

          348KB

        • memory/4992-137-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-51-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-175-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-62-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-54-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-56-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-55-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-49-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-174-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-167-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-166-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-64-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-159-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-138-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/4992-158-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-151-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-47-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-150-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-95-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-45-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-143-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-142-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-59-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-141-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4992-136-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/4992-135-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/4992-132-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/4992-60-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/5048-7-0x0000000006920000-0x0000000006928000-memory.dmp

          Filesize

          32KB

        • memory/5048-3-0x0000000005750000-0x00000000057E2000-memory.dmp

          Filesize

          584KB

        • memory/5048-4-0x0000000005740000-0x0000000005750000-memory.dmp

          Filesize

          64KB

        • memory/5048-2-0x0000000005C60000-0x0000000006204000-memory.dmp

          Filesize

          5.6MB

        • memory/5048-46-0x0000000074AF0000-0x00000000752A0000-memory.dmp

          Filesize

          7.7MB

        • memory/5048-0-0x0000000074AF0000-0x00000000752A0000-memory.dmp

          Filesize

          7.7MB

        • memory/5048-1-0x0000000000C10000-0x0000000000D1E000-memory.dmp

          Filesize

          1.1MB

        • memory/5048-50-0x0000000005740000-0x0000000005750000-memory.dmp

          Filesize

          64KB

        • memory/5048-5-0x0000000005710000-0x000000000571A000-memory.dmp

          Filesize

          40KB

        • memory/5048-6-0x0000000006D10000-0x0000000006D28000-memory.dmp

          Filesize

          96KB

        • memory/5048-8-0x0000000006930000-0x000000000693A000-memory.dmp

          Filesize

          40KB

        • memory/5048-9-0x0000000006EB0000-0x0000000006F68000-memory.dmp

          Filesize

          736KB

        • memory/5048-10-0x0000000006A90000-0x0000000006B2C000-memory.dmp

          Filesize

          624KB

        • memory/5048-52-0x0000000074AF0000-0x00000000752A0000-memory.dmp

          Filesize

          7.7MB