Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-11-2024 14:37

General

  • Target

    bb4bf3eb6ca4a9b81bf741b5d85d82127c8b8e716637e7d37450980c28f0178fN.exe

  • Size

    916KB

  • MD5

    7c9117e9ec6db111cf1f67d512b5e800

  • SHA1

    8b88b24bf4893a9c1dff2f79425f4cbea4a79bd5

  • SHA256

    bb4bf3eb6ca4a9b81bf741b5d85d82127c8b8e716637e7d37450980c28f0178f

  • SHA512

    a4cf30a429ebb4f2533538f51ef0314f7993b653a5989bac51d944eb4c163dc16745e858ddc81bbe400bce80f4ee839fb876abacc1dede69b491375fd0767cb2

  • SSDEEP

    24576:bMyqk7d8gE/KTudG5Zl75eJzKo8BYttZ7npS4d:XZ8gE/KSdyT5u+fB6TpSo

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

alibabaforwader.duckdns.org:60247

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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-6XDESO

  • 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.

  • Remcos family
  • 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.

  • 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 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bb4bf3eb6ca4a9b81bf741b5d85d82127c8b8e716637e7d37450980c28f0178fN.exe
    "C:\Users\Admin\AppData\Local\Temp\bb4bf3eb6ca4a9b81bf741b5d85d82127c8b8e716637e7d37450980c28f0178fN.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:1608
    • 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\bb4bf3eb6ca4a9b81bf741b5d85d82127c8b8e716637e7d37450980c28f0178fN.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1568
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\pNlkzRsCluNDj.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2488
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pNlkzRsCluNDj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF84A.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1716
    • C:\Users\Admin\AppData\Local\Temp\bb4bf3eb6ca4a9b81bf741b5d85d82127c8b8e716637e7d37450980c28f0178fN.exe
      "C:\Users\Admin\AppData\Local\Temp\bb4bf3eb6ca4a9b81bf741b5d85d82127c8b8e716637e7d37450980c28f0178fN.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:4020

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    93172eeeb118d624525f867357fd1ddd

    SHA1

    cabd28b56b83715235cd785e6c18fb566c59cd17

    SHA256

    aa0b8dfd631a592e36dadc6ac243ab72b05ac749f900f9abd98c09ef7cb99416

    SHA512

    adf63c61e14b5dcf8c85177aa2d0c3512a4d0bf1b470a42684f96f4af2a17fea4235520be7252ddacee60456e638b4430bcc32abccff450ab02381f983d7c328

  • 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_txnlhz3y.xrb.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpF84A.tmp

    Filesize

    1KB

    MD5

    7edb29a0c2b54761ab9fc5e5628657f7

    SHA1

    0eed831f9c236ebab22037016ae835054c222533

    SHA256

    6a3f11513b986af15f17ca85b027bac93cc14dedcf68dadf281f3b5b74f9dd46

    SHA512

    fb8830fb086132573c572edd4afd49e433fa29115a2e7436159a8c7341eb5d149cbfc6da2bef99f5b069b0fd782518c058b30161cc624f2294a2cf396a559817

  • memory/1568-33-0x0000000074D40000-0x00000000754F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1568-16-0x00000000053D0000-0x00000000059F8000-memory.dmp

    Filesize

    6.2MB

  • memory/1568-62-0x0000000006790000-0x00000000067C2000-memory.dmp

    Filesize

    200KB

  • memory/1568-82-0x0000000006770000-0x000000000678E000-memory.dmp

    Filesize

    120KB

  • memory/1568-54-0x0000000006290000-0x00000000062DC000-memory.dmp

    Filesize

    304KB

  • memory/1568-84-0x00000000071B0000-0x0000000007253000-memory.dmp

    Filesize

    652KB

  • memory/1568-52-0x00000000061D0000-0x00000000061EE000-memory.dmp

    Filesize

    120KB

  • memory/1568-15-0x0000000004C00000-0x0000000004C36000-memory.dmp

    Filesize

    216KB

  • memory/1568-17-0x0000000074D40000-0x00000000754F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1568-93-0x0000000007730000-0x0000000007744000-memory.dmp

    Filesize

    80KB

  • memory/1568-18-0x0000000074D40000-0x00000000754F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1568-25-0x0000000005280000-0x00000000052A2000-memory.dmp

    Filesize

    136KB

  • memory/1568-88-0x0000000007560000-0x000000000756A000-memory.dmp

    Filesize

    40KB

  • memory/1568-102-0x0000000074D40000-0x00000000754F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1568-90-0x00000000076F0000-0x0000000007701000-memory.dmp

    Filesize

    68KB

  • memory/1568-63-0x00000000755D0000-0x000000007561C000-memory.dmp

    Filesize

    304KB

  • memory/1568-30-0x0000000005320000-0x0000000005386000-memory.dmp

    Filesize

    408KB

  • memory/1568-31-0x0000000005A00000-0x0000000005A66000-memory.dmp

    Filesize

    408KB

  • memory/1568-95-0x0000000007830000-0x000000000784A000-memory.dmp

    Filesize

    104KB

  • memory/1568-34-0x0000000005B70000-0x0000000005EC4000-memory.dmp

    Filesize

    3.3MB

  • memory/1608-0-0x0000000074D4E000-0x0000000074D4F000-memory.dmp

    Filesize

    4KB

  • memory/1608-1-0x00000000003D0000-0x00000000004BC000-memory.dmp

    Filesize

    944KB

  • memory/1608-36-0x0000000074D40000-0x00000000754F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1608-5-0x0000000004F50000-0x0000000004F5A000-memory.dmp

    Filesize

    40KB

  • memory/1608-2-0x00000000053A0000-0x0000000005944000-memory.dmp

    Filesize

    5.6MB

  • memory/1608-3-0x0000000004E90000-0x0000000004F22000-memory.dmp

    Filesize

    584KB

  • memory/1608-4-0x0000000074D40000-0x00000000754F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1608-10-0x0000000006250000-0x0000000006312000-memory.dmp

    Filesize

    776KB

  • memory/1608-9-0x0000000074D40000-0x00000000754F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1608-8-0x0000000074D4E000-0x0000000074D4F000-memory.dmp

    Filesize

    4KB

  • memory/1608-7-0x0000000005360000-0x0000000005372000-memory.dmp

    Filesize

    72KB

  • memory/1608-6-0x00000000051A0000-0x000000000523C000-memory.dmp

    Filesize

    624KB

  • memory/2488-96-0x00000000070A0000-0x00000000070A8000-memory.dmp

    Filesize

    32KB

  • memory/2488-89-0x0000000007000000-0x0000000007096000-memory.dmp

    Filesize

    600KB

  • memory/2488-20-0x0000000074D40000-0x00000000754F0000-memory.dmp

    Filesize

    7.7MB

  • memory/2488-101-0x0000000074D40000-0x00000000754F0000-memory.dmp

    Filesize

    7.7MB

  • memory/2488-47-0x0000000074D40000-0x00000000754F0000-memory.dmp

    Filesize

    7.7MB

  • memory/2488-73-0x00000000755D0000-0x000000007561C000-memory.dmp

    Filesize

    304KB

  • memory/2488-23-0x0000000074D40000-0x00000000754F0000-memory.dmp

    Filesize

    7.7MB

  • memory/2488-92-0x0000000006FB0000-0x0000000006FBE000-memory.dmp

    Filesize

    56KB

  • memory/2488-87-0x0000000006D90000-0x0000000006DAA000-memory.dmp

    Filesize

    104KB

  • memory/2488-86-0x00000000073F0000-0x0000000007A6A000-memory.dmp

    Filesize

    6.5MB

  • memory/4020-119-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-126-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-29-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-85-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-55-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-94-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-35-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-24-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-22-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-59-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-103-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-21-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-104-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-105-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-106-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-107-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-108-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-109-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-111-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-112-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-113-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-114-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-115-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-116-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-118-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-61-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-120-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-121-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-122-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-123-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-124-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-26-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-127-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-128-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-129-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-130-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-131-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-132-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-60-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-134-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-135-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-136-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-137-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-138-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-139-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-141-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-142-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-143-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-144-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-145-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-146-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-147-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-149-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-150-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-151-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-152-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-153-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-154-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-155-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-157-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-158-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4020-159-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB