Analysis

  • max time kernel
    131s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/04/2024, 07:02

General

  • Target

    e-Payment Challan. R5364_08334_46915919.exe

  • Size

    624KB

  • MD5

    3a57683b6d649f0c6a68b25b12376985

  • SHA1

    62d75aaac7781351b4862a330dd3338b52c104b9

  • SHA256

    f7136ee5b078113db290b5d48216e48a13810aaa7f93ad9f15aef58b756e51c7

  • SHA512

    6e5eb8c3599d15b7dc79a1b1d71fcfa0efff3a46ee96745567a205ed4a167465f185c8d5e43543e7734802398c9c9715c68c3d95acd4d5a87b206be34b3166be

  • SSDEEP

    12288:1oNR4EoOBKMNHlg0f0479/tjiDcRvxXgnSnpZ1vvQZRYQrpEAmD:IoOBrBlj9i4J5gnIb9g

Score
10/10

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

gg

C2

62.102.148.185:9771

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    newstart

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_wgwfvnfssp

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Suspicious use of SetThreadContext 1 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 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e-Payment Challan. R5364_08334_46915919.exe
    "C:\Users\Admin\AppData\Local\Temp\e-Payment Challan. R5364_08334_46915919.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1776
    • 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\e-Payment Challan. R5364_08334_46915919.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2364
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ONSBsuKIuEQJ.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2216
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ONSBsuKIuEQJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA3E1.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2288
    • C:\Users\Admin\AppData\Local\Temp\e-Payment Challan. R5364_08334_46915919.exe
      "C:\Users\Admin\AppData\Local\Temp\e-Payment Challan. R5364_08334_46915919.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2252

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • 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

          7ee8386a5814fc298b52fe84d4e67aca

          SHA1

          36a552f4d5005fecbd65503c441583407012654e

          SHA256

          6d2e3febf06905936f75334638dfc4313026ac4a2814b6d42e8f0c0a15ffd883

          SHA512

          6b2e5bc8762c46c17d3f71ee07b7226e8517af1db7c00adbb540ffb0ca66f822da2350e778a4389869b71a627876c987ce83cea036fd7287d48f085003979294

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gb1spjcv.wuv.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\tmpA3E1.tmp

          Filesize

          1KB

          MD5

          3d3c3a38ec7e34c2d39ba4c8aed8245d

          SHA1

          d9e48aa2927f36dabb50050c15a0fa66793d8900

          SHA256

          f508a61e92d26050ecb7b7b2a9fd4a384f5af19eb33bfa2d3a9ca6c9d742de12

          SHA512

          0e31905c9f659c52afff11dec0171984513594972735fea3063a08674a1ddee3886c283c39e507996cf846771eacbfc2c1d3a9ee07f0afa64c80b598c4cbd672

        • memory/1776-8-0x0000000004BA0000-0x0000000004BAC000-memory.dmp

          Filesize

          48KB

        • memory/1776-11-0x0000000074940000-0x00000000750F0000-memory.dmp

          Filesize

          7.7MB

        • memory/1776-6-0x00000000054E0000-0x00000000054FC000-memory.dmp

          Filesize

          112KB

        • memory/1776-7-0x0000000005510000-0x0000000005518000-memory.dmp

          Filesize

          32KB

        • memory/1776-30-0x0000000074940000-0x00000000750F0000-memory.dmp

          Filesize

          7.7MB

        • memory/1776-9-0x00000000068D0000-0x0000000006930000-memory.dmp

          Filesize

          384KB

        • memory/1776-10-0x00000000079D0000-0x0000000007A6C000-memory.dmp

          Filesize

          624KB

        • memory/1776-5-0x0000000005200000-0x000000000520A000-memory.dmp

          Filesize

          40KB

        • memory/1776-12-0x0000000005130000-0x0000000005140000-memory.dmp

          Filesize

          64KB

        • memory/1776-4-0x0000000005130000-0x0000000005140000-memory.dmp

          Filesize

          64KB

        • memory/1776-3-0x0000000005160000-0x00000000051F2000-memory.dmp

          Filesize

          584KB

        • memory/1776-2-0x00000000057E0000-0x0000000005D84000-memory.dmp

          Filesize

          5.6MB

        • memory/1776-1-0x0000000074940000-0x00000000750F0000-memory.dmp

          Filesize

          7.7MB

        • memory/1776-0-0x00000000006C0000-0x0000000000762000-memory.dmp

          Filesize

          648KB

        • memory/2216-21-0x0000000074940000-0x00000000750F0000-memory.dmp

          Filesize

          7.7MB

        • memory/2216-23-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

          Filesize

          64KB

        • memory/2216-24-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

          Filesize

          64KB

        • memory/2216-94-0x0000000007970000-0x0000000007978000-memory.dmp

          Filesize

          32KB

        • memory/2216-93-0x0000000007990000-0x00000000079AA000-memory.dmp

          Filesize

          104KB

        • memory/2216-84-0x0000000007310000-0x00000000073B3000-memory.dmp

          Filesize

          652KB

        • memory/2216-91-0x0000000007880000-0x000000000788E000-memory.dmp

          Filesize

          56KB

        • memory/2216-89-0x00000000078D0000-0x0000000007966000-memory.dmp

          Filesize

          600KB

        • memory/2216-35-0x0000000005CB0000-0x0000000005D16000-memory.dmp

          Filesize

          408KB

        • memory/2216-88-0x00000000076C0000-0x00000000076CA000-memory.dmp

          Filesize

          40KB

        • memory/2216-87-0x0000000007650000-0x000000000766A000-memory.dmp

          Filesize

          104KB

        • memory/2216-20-0x0000000005400000-0x0000000005A28000-memory.dmp

          Filesize

          6.2MB

        • memory/2216-101-0x0000000074940000-0x00000000750F0000-memory.dmp

          Filesize

          7.7MB

        • memory/2216-52-0x0000000005D20000-0x0000000006074000-memory.dmp

          Filesize

          3.3MB

        • memory/2216-57-0x00000000063B0000-0x00000000063FC000-memory.dmp

          Filesize

          304KB

        • memory/2216-86-0x0000000007C90000-0x000000000830A000-memory.dmp

          Filesize

          6.5MB

        • memory/2216-60-0x0000000070D80000-0x0000000070DCC000-memory.dmp

          Filesize

          304KB

        • memory/2216-85-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

          Filesize

          64KB

        • memory/2216-62-0x000000007FA80000-0x000000007FA90000-memory.dmp

          Filesize

          64KB

        • memory/2216-81-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

          Filesize

          64KB

        • memory/2216-72-0x00000000072F0000-0x000000000730E000-memory.dmp

          Filesize

          120KB

        • memory/2252-31-0x0000000000400000-0x0000000000417000-memory.dmp

          Filesize

          92KB

        • memory/2252-36-0x0000000000400000-0x0000000000417000-memory.dmp

          Filesize

          92KB

        • memory/2252-103-0x0000000000400000-0x0000000000417000-memory.dmp

          Filesize

          92KB

        • memory/2252-26-0x0000000000400000-0x0000000000417000-memory.dmp

          Filesize

          92KB

        • memory/2252-29-0x0000000000400000-0x0000000000417000-memory.dmp

          Filesize

          92KB

        • memory/2364-90-0x0000000006FD0000-0x0000000006FE1000-memory.dmp

          Filesize

          68KB

        • memory/2364-59-0x000000007F560000-0x000000007F570000-memory.dmp

          Filesize

          64KB

        • memory/2364-56-0x0000000005AB0000-0x0000000005ACE000-memory.dmp

          Filesize

          120KB

        • memory/2364-32-0x00000000049F0000-0x0000000004A12000-memory.dmp

          Filesize

          136KB

        • memory/2364-58-0x0000000006A50000-0x0000000006A82000-memory.dmp

          Filesize

          200KB

        • memory/2364-83-0x0000000004580000-0x0000000004590000-memory.dmp

          Filesize

          64KB

        • memory/2364-92-0x0000000007010000-0x0000000007024000-memory.dmp

          Filesize

          80KB

        • memory/2364-34-0x00000000053E0000-0x0000000005446000-memory.dmp

          Filesize

          408KB

        • memory/2364-25-0x0000000004580000-0x0000000004590000-memory.dmp

          Filesize

          64KB

        • memory/2364-97-0x0000000074940000-0x00000000750F0000-memory.dmp

          Filesize

          7.7MB

        • memory/2364-19-0x0000000004580000-0x0000000004590000-memory.dmp

          Filesize

          64KB

        • memory/2364-18-0x0000000074940000-0x00000000750F0000-memory.dmp

          Filesize

          7.7MB

        • memory/2364-17-0x00000000044F0000-0x0000000004526000-memory.dmp

          Filesize

          216KB

        • memory/2364-61-0x0000000070D80000-0x0000000070DCC000-memory.dmp

          Filesize

          304KB