Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-04-2024 14:52

General

  • Target

    689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe

  • Size

    856KB

  • MD5

    72f2460abc3ae41fff469e110f3eaff3

  • SHA1

    066ba1993f24e959b03edef4940d1b5ee9f5e18a

  • SHA256

    689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf

  • SHA512

    7627f7b0cfc2ca14e788b840601edc5460b36c8e386d39b2eda2283600e192a9c83b1f5fec93ef7eff0a9e54d80ab523780149fae65116a9af77753e8b01fcc8

  • SSDEEP

    12288:7c8K/isRopeArTI4C8ilPYO0bJm1hEpA4kpNOxJNWBfTgtfBjLkvGpMeUPDpVU13:vK/LRopDTI4VOcHxJobgVRJww6k

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

jburg.net:3363

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-Y4B0AA

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Detect ZGRat V1 34 IoCs
  • Remcos

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

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe
    "C:\Users\Admin\AppData\Local\Temp\689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:348
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc 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
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3212
    • C:\Users\Admin\AppData\Local\Temp\689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe
      C:\Users\Admin\AppData\Local\Temp\689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2364

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    144B

    MD5

    561556af45e7ccddeb5500e0e8a452da

    SHA1

    5b9bddc17f4221ca06e7ead72464b4e210dd34a9

    SHA256

    0c52c2fe21902f4d1bc8ece2ac799a84b950396546ce952ef39af529c75f3d6b

    SHA512

    b9986d583509039125a57f1f137155e2185bd229891f3779bd9e32048595784acc6b974fa5197346403550d49ee371e1cef7eeedb29f7bb3879954b1e3df3f35

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_c2c1htmd.0f2.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/348-66-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-8-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-3-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-4-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-6-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-935-0x0000000004D10000-0x0000000004D20000-memory.dmp
    Filesize

    64KB

  • memory/348-10-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-12-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-14-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-16-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-936-0x0000000004E90000-0x0000000004E91000-memory.dmp
    Filesize

    4KB

  • memory/348-20-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-22-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-24-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-26-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-28-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-30-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-32-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-34-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-36-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-38-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-40-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-42-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-44-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-46-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-48-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-50-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-52-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-54-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-0-0x0000000000340000-0x000000000041C000-memory.dmp
    Filesize

    880KB

  • memory/348-58-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-60-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-62-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-64-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-56-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-2-0x0000000004D90000-0x0000000004E68000-memory.dmp
    Filesize

    864KB

  • memory/348-18-0x0000000004D90000-0x0000000004E62000-memory.dmp
    Filesize

    840KB

  • memory/348-937-0x0000000004F40000-0x0000000004FAE000-memory.dmp
    Filesize

    440KB

  • memory/348-938-0x0000000004FB0000-0x0000000004FFC000-memory.dmp
    Filesize

    304KB

  • memory/348-940-0x00000000064B0000-0x0000000006A54000-memory.dmp
    Filesize

    5.6MB

  • memory/348-949-0x00000000745C0000-0x0000000074D70000-memory.dmp
    Filesize

    7.7MB

  • memory/348-1-0x00000000745C0000-0x0000000074D70000-memory.dmp
    Filesize

    7.7MB

  • memory/2364-1003-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2364-952-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/3212-942-0x00000000028F0000-0x0000000002900000-memory.dmp
    Filesize

    64KB

  • memory/3212-946-0x0000000004F80000-0x00000000055A8000-memory.dmp
    Filesize

    6.2MB

  • memory/3212-970-0x0000000005EC0000-0x0000000005F0C000-memory.dmp
    Filesize

    304KB

  • memory/3212-985-0x0000000006E70000-0x0000000006F13000-memory.dmp
    Filesize

    652KB

  • memory/3212-954-0x00000000055B0000-0x0000000005616000-memory.dmp
    Filesize

    408KB

  • memory/3212-956-0x0000000005620000-0x0000000005686000-memory.dmp
    Filesize

    408KB

  • memory/3212-968-0x00000000057F0000-0x0000000005B44000-memory.dmp
    Filesize

    3.3MB

  • memory/3212-969-0x0000000005E80000-0x0000000005E9E000-memory.dmp
    Filesize

    120KB

  • memory/3212-984-0x0000000006430000-0x000000000644E000-memory.dmp
    Filesize

    120KB

  • memory/3212-971-0x00000000028F0000-0x0000000002900000-memory.dmp
    Filesize

    64KB

  • memory/3212-972-0x000000007FC60000-0x000000007FC70000-memory.dmp
    Filesize

    64KB

  • memory/3212-939-0x0000000002890000-0x00000000028C6000-memory.dmp
    Filesize

    216KB

  • memory/3212-998-0x00000000745C0000-0x0000000074D70000-memory.dmp
    Filesize

    7.7MB

  • memory/3212-974-0x0000000070360000-0x00000000703AC000-memory.dmp
    Filesize

    304KB

  • memory/3212-950-0x0000000004E90000-0x0000000004EB2000-memory.dmp
    Filesize

    136KB

  • memory/3212-986-0x00000000077E0000-0x0000000007E5A000-memory.dmp
    Filesize

    6.5MB

  • memory/3212-987-0x0000000007190000-0x00000000071AA000-memory.dmp
    Filesize

    104KB

  • memory/3212-988-0x0000000007200000-0x000000000720A000-memory.dmp
    Filesize

    40KB

  • memory/3212-990-0x0000000007410000-0x00000000074A6000-memory.dmp
    Filesize

    600KB

  • memory/3212-991-0x0000000007390000-0x00000000073A1000-memory.dmp
    Filesize

    68KB

  • memory/3212-992-0x00000000073C0000-0x00000000073CE000-memory.dmp
    Filesize

    56KB

  • memory/3212-993-0x00000000073D0000-0x00000000073E4000-memory.dmp
    Filesize

    80KB

  • memory/3212-994-0x00000000074D0000-0x00000000074EA000-memory.dmp
    Filesize

    104KB

  • memory/3212-995-0x00000000074B0000-0x00000000074B8000-memory.dmp
    Filesize

    32KB

  • memory/3212-973-0x0000000006450000-0x0000000006482000-memory.dmp
    Filesize

    200KB

  • memory/3212-941-0x00000000745C0000-0x0000000074D70000-memory.dmp
    Filesize

    7.7MB