Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-07-2024 11:47

General

  • Target

    3f69729a8f2b22e625bb984f28758ebc.exe

  • Size

    939KB

  • MD5

    3f69729a8f2b22e625bb984f28758ebc

  • SHA1

    ab8aab5952dfcf0d705daff76448920c67b6241d

  • SHA256

    d1b50fc6ce79320a88defef33baf6a51e30845bd13ab2b52f7925ba0b8f527cd

  • SHA512

    c4622e82f66aa728ded76ef628bd31ddcd35581a10a6043e735e557a26c8f9c72c67713f29a3ed90f647bf268484b44cf812918a02aa8e1539c3fdac7bcc1fa1

  • SSDEEP

    24576:Yglv8Jv17LLE1hUG+n1KD9Wa9PMEgDzx9mZREOUqqHXONlVUE:oPYf+n1KDghPx9ARDhqHXOR

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

204.10.160.230:7983

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-O7QOC3

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • 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.

  • 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\3f69729a8f2b22e625bb984f28758ebc.exe
    "C:\Users\Admin\AppData\Local\Temp\3f69729a8f2b22e625bb984f28758ebc.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:2800
    • 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\3f69729a8f2b22e625bb984f28758ebc.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:368
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\HODoCxSdp.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1092
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HODoCxSdp" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF0E8.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3796
    • C:\Users\Admin\AppData\Local\Temp\3f69729a8f2b22e625bb984f28758ebc.exe
      "C:\Users\Admin\AppData\Local\Temp\3f69729a8f2b22e625bb984f28758ebc.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1524

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

    3d086a433708053f9bf9523e1d87a4e8

    SHA1

    b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

    SHA256

    6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

    SHA512

    931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

    Filesize

    18KB

    MD5

    6a1298fb5787fc5aeba374b04fa7dd38

    SHA1

    437e926f59ba63e4e580ec2f978d4ed69294528d

    SHA256

    4326f01711b631ebb9a625bf7b71ed99ea2fc4ca09e3ade1116a2aac2654454b

    SHA512

    c7774f9288b38497a8e1a615d8f085ba6c95dddaec92241cae0ee2f6683b719eed2e6314ca1af4aef3b7c855777533d20308e183193600328100be2710eca0a2

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fov11sbi.3w1.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpF0E8.tmp

    Filesize

    1KB

    MD5

    ed7f3ee978cefe2fb0d1dbc899f5ff2f

    SHA1

    9890e9c8a7c02e8a0a91844df2a373632a7ddddf

    SHA256

    20a8fb807102edd0afd3a5f6d0627c22bddc5b288a42bfd4df23d7a7e960f454

    SHA512

    e4c0c4a83eaa00bf5d97d93d81d41d291ee9973a7e3d14582bf6f3d6bd6638631041343a85ab6ddfacf72c25969ff1a64061427df08c063063ed24b7b56e11ed

  • memory/368-55-0x00000000066F0000-0x000000000673C000-memory.dmp

    Filesize

    304KB

  • memory/368-54-0x0000000006190000-0x00000000061AE000-memory.dmp

    Filesize

    120KB

  • memory/368-30-0x0000000005AF0000-0x0000000005B56000-memory.dmp

    Filesize

    408KB

  • memory/368-19-0x00000000054C0000-0x0000000005AE8000-memory.dmp

    Filesize

    6.2MB

  • memory/368-20-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/368-98-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/368-18-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/368-91-0x0000000007820000-0x000000000783A000-memory.dmp

    Filesize

    104KB

  • memory/368-90-0x0000000007720000-0x0000000007734000-memory.dmp

    Filesize

    80KB

  • memory/368-86-0x0000000007550000-0x000000000755A000-memory.dmp

    Filesize

    40KB

  • memory/368-21-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/368-84-0x0000000007B20000-0x000000000819A000-memory.dmp

    Filesize

    6.5MB

  • memory/368-23-0x0000000005400000-0x0000000005422000-memory.dmp

    Filesize

    136KB

  • memory/368-85-0x00000000074E0000-0x00000000074FA000-memory.dmp

    Filesize

    104KB

  • memory/368-73-0x00000000071C0000-0x0000000007263000-memory.dmp

    Filesize

    652KB

  • memory/368-50-0x0000000005D40000-0x0000000006094000-memory.dmp

    Filesize

    3.3MB

  • memory/368-72-0x00000000071A0000-0x00000000071BE000-memory.dmp

    Filesize

    120KB

  • memory/368-61-0x00000000067A0000-0x00000000067D2000-memory.dmp

    Filesize

    200KB

  • memory/368-62-0x0000000075560000-0x00000000755AC000-memory.dmp

    Filesize

    304KB

  • memory/368-31-0x0000000005BD0000-0x0000000005C36000-memory.dmp

    Filesize

    408KB

  • memory/368-16-0x0000000002880000-0x00000000028B6000-memory.dmp

    Filesize

    216KB

  • memory/1092-88-0x00000000076E0000-0x00000000076F1000-memory.dmp

    Filesize

    68KB

  • memory/1092-49-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/1092-99-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/1092-92-0x0000000007800000-0x0000000007808000-memory.dmp

    Filesize

    32KB

  • memory/1092-89-0x0000000007710000-0x000000000771E000-memory.dmp

    Filesize

    56KB

  • memory/1092-87-0x0000000007760000-0x00000000077F6000-memory.dmp

    Filesize

    600KB

  • memory/1092-24-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/1092-74-0x0000000075560000-0x00000000755AC000-memory.dmp

    Filesize

    304KB

  • memory/1092-52-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/1524-56-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1524-57-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1524-58-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1524-60-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1524-105-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1524-37-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1524-104-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1524-38-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1524-103-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1524-48-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1524-102-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1524-101-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1524-100-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1524-36-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2800-0-0x0000000074CDE000-0x0000000074CDF000-memory.dmp

    Filesize

    4KB

  • memory/2800-53-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/2800-6-0x0000000006610000-0x00000000066AC000-memory.dmp

    Filesize

    624KB

  • memory/2800-17-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/2800-5-0x0000000005930000-0x000000000593A000-memory.dmp

    Filesize

    40KB

  • memory/2800-4-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/2800-2-0x0000000005300000-0x0000000005392000-memory.dmp

    Filesize

    584KB

  • memory/2800-7-0x00000000066B0000-0x0000000006780000-memory.dmp

    Filesize

    832KB

  • memory/2800-11-0x0000000074CDE000-0x0000000074CDF000-memory.dmp

    Filesize

    4KB

  • memory/2800-8-0x0000000006450000-0x000000000645E000-memory.dmp

    Filesize

    56KB

  • memory/2800-10-0x00000000067B0000-0x000000000686E000-memory.dmp

    Filesize

    760KB

  • memory/2800-1-0x00000000007F0000-0x00000000008DE000-memory.dmp

    Filesize

    952KB

  • memory/2800-3-0x0000000005950000-0x0000000005EF4000-memory.dmp

    Filesize

    5.6MB

  • memory/2800-9-0x00000000065E0000-0x00000000065EE000-memory.dmp

    Filesize

    56KB