Analysis

  • max time kernel
    150s
  • max time network
    153s
  • 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 14:42

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:916
    • 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:668
    • 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:1164
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pNlkzRsCluNDj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2863.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3528
    • 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:3084

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    ed2db2d43aa7853186178a19330ef204

    SHA1

    1c0a5c94a82279b55a53fa98e7aa173423dcccc9

    SHA256

    b5d01641262e2ef1bbb84de7bdb0c9b77e45ad11094d7c2ca46f77c16393d340

    SHA512

    a53131b0c5eec2fd233fccacabc60a2f303eb3b53e9abadf4c40ab328c2ae3d42e343c80c680578345dac956c3452a97fa514ec21149f8b9b7ef66322e5bcbc1

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

    Filesize

    2KB

    MD5

    3d086a433708053f9bf9523e1d87a4e8

    SHA1

    b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

    SHA256

    6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

    SHA512

    931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

    Filesize

    18KB

    MD5

    4c9b24757792c85b81044c23012a8582

    SHA1

    02dd8929f7f857b8b4fdff051c06c5c3290e9849

    SHA256

    967b39c2fae4ac8f19a47c7e114343167279001c9da7cf4e90bad2e654996fb8

    SHA512

    6f8fcdce9f8c0cd2b70416c7b3408317fb346e54ba157f27a072b763f1aedd6f9dfe89706d2b1687013547db7806ed6bf3f09d56336f114856ec879ed0dd69b4

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qgij31u1.opn.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp2863.tmp

    Filesize

    1KB

    MD5

    10ee714907191add5ef0e5b819427414

    SHA1

    5a7e60286dc0e2b17f676628446a2d21f3d71f05

    SHA256

    f19839d87c13fe1fcbc8c63c2107657a9b2ec9127c57a43bc3ed56f5f21b8b50

    SHA512

    489326f35d71ade1a50d0bdcdb5967046695a57b27a34dfc882c53d94bf7ec931b27463b842dc64e5cb179c276a0c5006752f46acc1c46e0991241c8777df9af

  • memory/668-37-0x0000000005D50000-0x00000000060A4000-memory.dmp

    Filesize

    3.3MB

  • memory/668-57-0x00000000066A0000-0x00000000066EC000-memory.dmp

    Filesize

    304KB

  • memory/668-55-0x0000000006170000-0x000000000618E000-memory.dmp

    Filesize

    120KB

  • memory/668-22-0x00000000059C0000-0x0000000005A26000-memory.dmp

    Filesize

    408KB

  • memory/668-25-0x0000000005B60000-0x0000000005BC6000-memory.dmp

    Filesize

    408KB

  • memory/668-74-0x0000000074EF0000-0x0000000074F3C000-memory.dmp

    Filesize

    304KB

  • memory/668-15-0x0000000002870000-0x00000000028A6000-memory.dmp

    Filesize

    216KB

  • memory/668-17-0x00000000052F0000-0x0000000005918000-memory.dmp

    Filesize

    6.2MB

  • memory/668-16-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/668-18-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/668-90-0x00000000076E0000-0x00000000076EE000-memory.dmp

    Filesize

    56KB

  • memory/668-94-0x00000000077D0000-0x00000000077D8000-memory.dmp

    Filesize

    32KB

  • memory/668-21-0x0000000005920000-0x0000000005942000-memory.dmp

    Filesize

    136KB

  • memory/668-38-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/668-102-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/916-2-0x0000000005B70000-0x0000000006114000-memory.dmp

    Filesize

    5.6MB

  • memory/916-3-0x00000000055C0000-0x0000000005652000-memory.dmp

    Filesize

    584KB

  • memory/916-1-0x0000000000C00000-0x0000000000CEC000-memory.dmp

    Filesize

    944KB

  • memory/916-4-0x0000000005750000-0x000000000575A000-memory.dmp

    Filesize

    40KB

  • memory/916-5-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/916-6-0x0000000005850000-0x00000000058EC000-memory.dmp

    Filesize

    624KB

  • memory/916-44-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/916-10-0x0000000006830000-0x00000000068F2000-memory.dmp

    Filesize

    776KB

  • memory/916-0-0x000000007466E000-0x000000007466F000-memory.dmp

    Filesize

    4KB

  • memory/916-9-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/916-8-0x000000007466E000-0x000000007466F000-memory.dmp

    Filesize

    4KB

  • memory/916-7-0x0000000005830000-0x0000000005842000-memory.dmp

    Filesize

    72KB

  • memory/1164-43-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/1164-89-0x0000000007350000-0x0000000007361000-memory.dmp

    Filesize

    68KB

  • memory/1164-19-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/1164-29-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/1164-101-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/1164-61-0x00000000060A0000-0x00000000060D2000-memory.dmp

    Filesize

    200KB

  • memory/1164-62-0x0000000074EF0000-0x0000000074F3C000-memory.dmp

    Filesize

    304KB

  • memory/1164-72-0x0000000004B90000-0x0000000004BAE000-memory.dmp

    Filesize

    120KB

  • memory/1164-73-0x0000000007010000-0x00000000070B3000-memory.dmp

    Filesize

    652KB

  • memory/1164-92-0x0000000007490000-0x00000000074AA000-memory.dmp

    Filesize

    104KB

  • memory/1164-84-0x00000000077C0000-0x0000000007E3A000-memory.dmp

    Filesize

    6.5MB

  • memory/1164-85-0x0000000007160000-0x000000000717A000-memory.dmp

    Filesize

    104KB

  • memory/1164-91-0x0000000007390000-0x00000000073A4000-memory.dmp

    Filesize

    80KB

  • memory/1164-87-0x00000000071C0000-0x00000000071CA000-memory.dmp

    Filesize

    40KB

  • memory/1164-88-0x00000000073D0000-0x0000000007466000-memory.dmp

    Filesize

    600KB

  • memory/3084-119-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-127-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-86-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-45-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-93-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-39-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-36-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-34-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-60-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-59-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-103-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-104-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-105-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-106-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-107-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-108-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-109-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-111-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-112-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-113-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-114-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-115-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-116-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-118-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-56-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-120-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-121-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-122-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-123-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-124-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-126-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-42-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-128-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-129-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-130-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-131-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-132-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-58-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-134-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-135-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-136-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-137-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-138-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-140-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-141-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-142-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-143-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-144-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-145-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-146-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-148-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-149-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-150-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-151-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-152-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-153-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-155-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-156-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-157-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-158-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-159-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3084-160-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB