Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-09-2024 15:05

General

  • Target

    PO#720.exe

  • Size

    914KB

  • MD5

    57c246dd2b2221edbfd54ff9246a0099

  • SHA1

    3e4dc6e19407ff041b25629082a90382be7b957f

  • SHA256

    6fb1afbb72d328bdaca9c019107c5ce12c81bfbabac1f1b7426db29ffec79f96

  • SHA512

    5a49e14dfaa8b6f53bc9e5da299f43d199389ded897c9a23ec6615c396bc83e6589787f0704fa097c395296d643fd0b6b3e83dbdddad385d2ee5af5825cea9e2

  • SSDEEP

    24576:+Eb5NCjPBS2nv0frerFWM+u848EUjooYgyUKHdw:N5N+5S2nv0fKxIuRUjoSK

Malware Config

Extracted

Family

remcos

Botnet

throttle_8967

C2

154.216.18.217:8967

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-4SV4HO

  • 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.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO#720.exe
    "C:\Users\Admin\AppData\Local\Temp\PO#720.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1180
    • 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\PO#720.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1772
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VdrrjnwYc.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1580
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VdrrjnwYc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE0DA.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3864
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4420

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\Temp\__PSScriptPolicyTest_k3ejrxkc.1ze.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpE0DA.tmp

    Filesize

    1KB

    MD5

    4bd3841ffe86ac0c886cf40529a75ae7

    SHA1

    b4b828917493f2cdf3319793493f838473107629

    SHA256

    8029468f475dfb4b9e15233a5fa4df4fead8011316a56cc2598c40ad93ca1b62

    SHA512

    b1fa56b3239132bf948e316163c2897a4f5470b3bdc8f63f90733c0a7974849c19a554d4dabedbbe27b4dc12bd2df5c7efe3396f2d9d26ec009433b220dad9c4

  • memory/1180-6-0x00000000054E0000-0x00000000054F8000-memory.dmp

    Filesize

    96KB

  • memory/1180-5-0x0000000074D00000-0x00000000754B0000-memory.dmp

    Filesize

    7.7MB

  • memory/1180-4-0x00000000052D0000-0x00000000052DA000-memory.dmp

    Filesize

    40KB

  • memory/1180-3-0x0000000005140000-0x00000000051D2000-memory.dmp

    Filesize

    584KB

  • memory/1180-7-0x0000000074D0E000-0x0000000074D0F000-memory.dmp

    Filesize

    4KB

  • memory/1180-8-0x0000000074D00000-0x00000000754B0000-memory.dmp

    Filesize

    7.7MB

  • memory/1180-9-0x00000000063D0000-0x0000000006490000-memory.dmp

    Filesize

    768KB

  • memory/1180-10-0x0000000008BA0000-0x0000000008C3C000-memory.dmp

    Filesize

    624KB

  • memory/1180-2-0x0000000005650000-0x0000000005BF4000-memory.dmp

    Filesize

    5.6MB

  • memory/1180-46-0x0000000074D00000-0x00000000754B0000-memory.dmp

    Filesize

    7.7MB

  • memory/1180-0-0x0000000074D0E000-0x0000000074D0F000-memory.dmp

    Filesize

    4KB

  • memory/1180-1-0x00000000007A0000-0x000000000088A000-memory.dmp

    Filesize

    936KB

  • memory/1580-81-0x00000000071E0000-0x00000000071EE000-memory.dmp

    Filesize

    56KB

  • memory/1580-80-0x00000000071B0000-0x00000000071C1000-memory.dmp

    Filesize

    68KB

  • memory/1580-52-0x0000000005D20000-0x0000000005D6C000-memory.dmp

    Filesize

    304KB

  • memory/1580-89-0x0000000074D00000-0x00000000754B0000-memory.dmp

    Filesize

    7.7MB

  • memory/1580-82-0x00000000071F0000-0x0000000007204000-memory.dmp

    Filesize

    80KB

  • memory/1580-79-0x0000000007230000-0x00000000072C6000-memory.dmp

    Filesize

    600KB

  • memory/1580-32-0x0000000074D00000-0x00000000754B0000-memory.dmp

    Filesize

    7.7MB

  • memory/1580-83-0x00000000072F0000-0x000000000730A000-memory.dmp

    Filesize

    104KB

  • memory/1580-45-0x0000000074D00000-0x00000000754B0000-memory.dmp

    Filesize

    7.7MB

  • memory/1580-31-0x0000000074D00000-0x00000000754B0000-memory.dmp

    Filesize

    7.7MB

  • memory/1580-78-0x0000000007030000-0x000000000703A000-memory.dmp

    Filesize

    40KB

  • memory/1580-84-0x00000000072D0000-0x00000000072D8000-memory.dmp

    Filesize

    32KB

  • memory/1580-75-0x0000000006E70000-0x0000000006F13000-memory.dmp

    Filesize

    652KB

  • memory/1580-65-0x0000000075590000-0x00000000755DC000-memory.dmp

    Filesize

    304KB

  • memory/1580-51-0x0000000005CA0000-0x0000000005CBE000-memory.dmp

    Filesize

    120KB

  • memory/1772-15-0x0000000002B90000-0x0000000002BC6000-memory.dmp

    Filesize

    216KB

  • memory/1772-54-0x0000000075590000-0x00000000755DC000-memory.dmp

    Filesize

    304KB

  • memory/1772-20-0x0000000005C30000-0x0000000005C52000-memory.dmp

    Filesize

    136KB

  • memory/1772-64-0x00000000069F0000-0x0000000006A0E000-memory.dmp

    Filesize

    120KB

  • memory/1772-53-0x0000000007680000-0x00000000076B2000-memory.dmp

    Filesize

    200KB

  • memory/1772-21-0x0000000005D50000-0x0000000005DB6000-memory.dmp

    Filesize

    408KB

  • memory/1772-77-0x00000000077E0000-0x00000000077FA000-memory.dmp

    Filesize

    104KB

  • memory/1772-76-0x0000000007E20000-0x000000000849A000-memory.dmp

    Filesize

    6.5MB

  • memory/1772-30-0x0000000005EE0000-0x0000000006234000-memory.dmp

    Filesize

    3.3MB

  • memory/1772-90-0x0000000074D00000-0x00000000754B0000-memory.dmp

    Filesize

    7.7MB

  • memory/1772-22-0x0000000005E70000-0x0000000005ED6000-memory.dmp

    Filesize

    408KB

  • memory/1772-18-0x0000000074D00000-0x00000000754B0000-memory.dmp

    Filesize

    7.7MB

  • memory/1772-16-0x00000000055C0000-0x0000000005BE8000-memory.dmp

    Filesize

    6.2MB

  • memory/1772-17-0x0000000074D00000-0x00000000754B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4420-40-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-29-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-39-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-28-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-91-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-92-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-93-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-94-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-95-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-96-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-97-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-98-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-99-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-100-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-101-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-102-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-103-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-104-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-105-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-106-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-107-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-108-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-109-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-110-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-111-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-112-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-113-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-114-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-115-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-116-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-117-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4420-118-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB