Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    08-04-2024 09:02

General

  • Target

    RFQ.NO. S70-23Q-1474-CS-P - ORDER 2024.gz.exe

  • Size

    996KB

  • MD5

    0f590a7d7c99e395fa9aaa1159e00fb3

  • SHA1

    58322ce759d00892e146a499456492f19b03ede0

  • SHA256

    408f6df5140e6b71b4fc5add7ae8d69f89d5aebb184081de8076e7c1972fe55c

  • SHA512

    27c402a22a4cc414a53584a55a87e6d314c62f8958ee8ee690020aaa762c1aede794877cdc37806c9f1c3aa6d9dd5e675e10bc9efcf567987f86cf1ede4e1c59

  • SSDEEP

    24576:Ko5SLBTIjiK1MweZsLuI2/OFea6hPj42nqxvS:z5StsR1MwiOFGctxv

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

paygateme.net:2286

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-WTDTSU

  • screenshot_crypt

    true

  • screenshot_flag

    true

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RFQ.NO. S70-23Q-1474-CS-P - ORDER 2024.gz.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ.NO. S70-23Q-1474-CS-P - ORDER 2024.gz.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fmduzErmJdOHa.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2764
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fmduzErmJdOHa" /XML "C:\Users\Admin\AppData\Local\Temp\tmp53DA.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2608
    • C:\Users\Admin\AppData\Local\Temp\RFQ.NO. S70-23Q-1474-CS-P - ORDER 2024.gz.exe
      "C:\Users\Admin\AppData\Local\Temp\RFQ.NO. S70-23Q-1474-CS-P - ORDER 2024.gz.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2728
      • C:\Users\Admin\AppData\Local\Temp\RFQ.NO. S70-23Q-1474-CS-P - ORDER 2024.gz.exe
        "C:\Users\Admin\AppData\Local\Temp\RFQ.NO. S70-23Q-1474-CS-P - ORDER 2024.gz.exe" /stext "C:\Users\Admin\AppData\Local\Temp\pxrkgquzehefoawiteqlbnlqzz"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:2856
      • C:\Users\Admin\AppData\Local\Temp\RFQ.NO. S70-23Q-1474-CS-P - ORDER 2024.gz.exe
        "C:\Users\Admin\AppData\Local\Temp\RFQ.NO. S70-23Q-1474-CS-P - ORDER 2024.gz.exe" /stext "C:\Users\Admin\AppData\Local\Temp\srwvhafsapwjrgkmcpdfeaghinzgg"
        3⤵
        • Accesses Microsoft Outlook accounts
        PID:1364
      • C:\Users\Admin\AppData\Local\Temp\RFQ.NO. S70-23Q-1474-CS-P - ORDER 2024.gz.exe
        "C:\Users\Admin\AppData\Local\Temp\RFQ.NO. S70-23Q-1474-CS-P - ORDER 2024.gz.exe" /stext "C:\Users\Admin\AppData\Local\Temp\ctjnisquoxoobmgqtaygpfaqjurphpxkk"
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2860

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat
    Filesize

    144B

    MD5

    cca429fae2c24c3dd8615497c43819ad

    SHA1

    efc28d7a551ba81de260ffc5f6c93b28bf26d7b4

    SHA256

    6a5965202fc54a5ba60e91428673767c594c71b2001806fec7562ff09af2b325

    SHA512

    6769fbe19e76300f7b265183a39e260e1d1e9dac468230ef6b2166b9f689c4bc4ece0c0fc9117da07ce9f1b8196e16ac29de53a2119bd92957522dce4fd23ad7

  • C:\Users\Admin\AppData\Local\Temp\pxrkgquzehefoawiteqlbnlqzz
    Filesize

    2B

    MD5

    f3b25701fe362ec84616a93a45ce9998

    SHA1

    d62636d8caec13f04e28442a0a6fa1afeb024bbb

    SHA256

    b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

    SHA512

    98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

  • C:\Users\Admin\AppData\Local\Temp\tmp53DA.tmp
    Filesize

    1KB

    MD5

    7f7693f1c1014f2e3b248ba991e21fad

    SHA1

    b509564bb9bd5451174e3f0bcea6ea8c47995269

    SHA256

    b37b251de6b32720b41d5eb5952d1f6a97d21c54e5f58f6f040fe2631936d639

    SHA512

    dc0a6c7c82e268583d39efff27d42816eaafe3b81f22730a028fd8b689d6dc3e20926a75485308185471626595b9aa381f06647efbb4724506a22ed882e5cc42

  • memory/1364-67-0x0000000000400000-0x0000000000462000-memory.dmp
    Filesize

    392KB

  • memory/1364-75-0x0000000000400000-0x0000000000462000-memory.dmp
    Filesize

    392KB

  • memory/1364-77-0x0000000000400000-0x0000000000462000-memory.dmp
    Filesize

    392KB

  • memory/1364-94-0x0000000000400000-0x0000000000462000-memory.dmp
    Filesize

    392KB

  • memory/2016-1-0x0000000074520000-0x0000000074C0E000-memory.dmp
    Filesize

    6.9MB

  • memory/2016-6-0x000000000A6C0000-0x000000000A780000-memory.dmp
    Filesize

    768KB

  • memory/2016-5-0x0000000000590000-0x000000000059C000-memory.dmp
    Filesize

    48KB

  • memory/2016-0-0x0000000000E50000-0x0000000000F4C000-memory.dmp
    Filesize

    1008KB

  • memory/2016-33-0x0000000074520000-0x0000000074C0E000-memory.dmp
    Filesize

    6.9MB

  • memory/2016-2-0x0000000000660000-0x00000000006A0000-memory.dmp
    Filesize

    256KB

  • memory/2016-3-0x00000000009D0000-0x00000000009EC000-memory.dmp
    Filesize

    112KB

  • memory/2016-4-0x0000000000640000-0x0000000000648000-memory.dmp
    Filesize

    32KB

  • memory/2728-51-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-24-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-30-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-26-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-32-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-34-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-37-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-39-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-41-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-108-0x0000000010000000-0x0000000010019000-memory.dmp
    Filesize

    100KB

  • memory/2728-103-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-45-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-102-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2728-12-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-100-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-50-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-87-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-52-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-53-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-55-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-57-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-58-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-99-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-97-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-96-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-22-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-95-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-14-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-93-0x0000000010000000-0x0000000010019000-memory.dmp
    Filesize

    100KB

  • memory/2728-20-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-18-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2728-92-0x0000000010000000-0x0000000010019000-memory.dmp
    Filesize

    100KB

  • memory/2728-91-0x0000000010000000-0x0000000010019000-memory.dmp
    Filesize

    100KB

  • memory/2728-88-0x0000000010000000-0x0000000010019000-memory.dmp
    Filesize

    100KB

  • memory/2728-16-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2764-48-0x00000000029C0000-0x0000000002A00000-memory.dmp
    Filesize

    256KB

  • memory/2764-49-0x0000000073570000-0x0000000073B1B000-memory.dmp
    Filesize

    5.7MB

  • memory/2764-43-0x0000000073570000-0x0000000073B1B000-memory.dmp
    Filesize

    5.7MB

  • memory/2764-46-0x00000000029C0000-0x0000000002A00000-memory.dmp
    Filesize

    256KB

  • memory/2764-47-0x00000000029C0000-0x0000000002A00000-memory.dmp
    Filesize

    256KB

  • memory/2764-44-0x0000000073570000-0x0000000073B1B000-memory.dmp
    Filesize

    5.7MB

  • memory/2856-66-0x0000000000400000-0x0000000000478000-memory.dmp
    Filesize

    480KB

  • memory/2856-84-0x0000000000400000-0x0000000000478000-memory.dmp
    Filesize

    480KB

  • memory/2856-62-0x0000000000400000-0x0000000000478000-memory.dmp
    Filesize

    480KB

  • memory/2856-60-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2856-70-0x0000000000400000-0x0000000000478000-memory.dmp
    Filesize

    480KB

  • memory/2860-71-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2860-73-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/2860-79-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/2860-76-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB