Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26-09-2024 02:28

General

  • Target

    ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe

  • Size

    896KB

  • MD5

    64219e1931808919fd05dcfb458dfc25

  • SHA1

    6adb1561418be08ccaa2e448166bc36673ec60c5

  • SHA256

    ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c

  • SHA512

    9ce694eaf780a4d255e328f527df78c949a5c54b5ab0ba46c9800fd326e9ab0c29eec331a1bc8a8592c159c99fcd69d165baf4ab0d09b2d5ca6540f0e5bd527c

  • SSDEEP

    24576:12n4ze7gcvBx2mYa7sJw3+NHNQA6zqvkiINLYnTI:14gcvL2mT7sJw386pqvkiINc

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:52121

officerem.duckdns.org:52121

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-6GPUH1

  • 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.

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe
    "C:\Users\Admin\AppData\Local\Temp\ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2156
    • 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\ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2844
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZRuVeAoBoxootS.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2756
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZRuVeAoBoxootS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp59C4.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2728
    • C:\Users\Admin\AppData\Local\Temp\ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe
      "C:\Users\Admin\AppData\Local\Temp\ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1484

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp59C4.tmp

    Filesize

    1KB

    MD5

    d994cf13672b6aa7eb462c84656daad6

    SHA1

    28412faf286f1851c420b4828b6e2184f549314b

    SHA256

    be79258e8ded307cf86dc48aa033a813718aeb0bc3b8aa7ed4ced5bc3ae513eb

    SHA512

    7bdff7e8a1a012ca44f0833f0544993961db4ecb607657bf4bb501b409c4fcf61db8108c0e48ba767feb07ca9363a8b1f580831639f2d0ee61197c92809a371a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    41fcc61ab885d7031baa615a99ed7854

    SHA1

    973a5c0059d95fbcb757fb496dc85936a28a9743

    SHA256

    d06c3a467f81c54e8edcb186abf8757b4755f0809fc46019c2eb2c2aa8aab7d6

    SHA512

    3e6e1d520149dd1e2dae95f694849b1cecc60e6b41add078d74fd22bf49b77de0597946ffd05c2b1ef26f7880813b907a49514b8047f5657fd23cbe8dcc7c420

  • memory/1484-25-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-19-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-55-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-54-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-52-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-53-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-50-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-21-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-36-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1484-39-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-51-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-37-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-33-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-31-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-27-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-49-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-48-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-40-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-29-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-24-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-41-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-42-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-44-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-43-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1484-45-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2156-3-0x0000000000540000-0x0000000000552000-memory.dmp

    Filesize

    72KB

  • memory/2156-6-0x0000000005600000-0x00000000056BE000-memory.dmp

    Filesize

    760KB

  • memory/2156-38-0x0000000074140000-0x000000007482E000-memory.dmp

    Filesize

    6.9MB

  • memory/2156-1-0x0000000000B40000-0x0000000000C26000-memory.dmp

    Filesize

    920KB

  • memory/2156-2-0x0000000074140000-0x000000007482E000-memory.dmp

    Filesize

    6.9MB

  • memory/2156-0-0x000000007414E000-0x000000007414F000-memory.dmp

    Filesize

    4KB

  • memory/2156-5-0x0000000074140000-0x000000007482E000-memory.dmp

    Filesize

    6.9MB

  • memory/2156-4-0x000000007414E000-0x000000007414F000-memory.dmp

    Filesize

    4KB