Analysis

  • max time kernel
    148s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-01-2025 20:21

General

  • Target

    1737663604da278262d49c4244551f832f08605e950c70b8ed6e61efd3cf2c7036af37a35e584.dat-decoded.exe

  • Size

    235KB

  • MD5

    541bfc55cbbab47729342d1f2ddf0f73

  • SHA1

    72e64bf487c1e971a9fc2f05281299caf90b27c3

  • SHA256

    2edf874ef456146a26d6f4c7836069d48597c01fb7fb569f31013866012a7bd7

  • SHA512

    0dd4b0fc8a4d7aec1846d2bc6a6cc98b11937ae0b99e2d20eb2c1673bed6c867414a8a2646516b895e013f50e326c158d3e1e7c2f12028a7228e9215845cc033

  • SSDEEP

    6144:JQP761yOPJaNOKnod5naEtdpB6JdJf7s/ENdcAcrNOr0/RdVV:JQP7M0NOK3856JzjsAOZrNl

Malware Config

Extracted

Family

remcos

Botnet

ManifestBlessings

C2

krakencryptotrades.duckdns.org:2025

recoverytrades.duckdns.org:2026

krakenrecoveries.freemyip.com:2026

007lora.varpourtec.com:2026

masterb12.risunn.com:2026

risunn.com:2026

risunn.com:2025

nunubv1.fratellillottini.com:2026

fratellillottini.com:2025

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-C3DF3D

  • 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
  • Detected Nirsoft tools 10 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 3 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 3 IoCs

    Password recovery tool for various web browsers

  • Reads user/profile data of web browsers 3 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 3 IoCs
  • UPX packed file 13 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1737663604da278262d49c4244551f832f08605e950c70b8ed6e61efd3cf2c7036af37a35e584.dat-decoded.exe
    "C:\Users\Admin\AppData\Local\Temp\1737663604da278262d49c4244551f832f08605e950c70b8ed6e61efd3cf2c7036af37a35e584.dat-decoded.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2848
    • C:\Users\Admin\AppData\Local\Temp\1737663604da278262d49c4244551f832f08605e950c70b8ed6e61efd3cf2c7036af37a35e584.dat-decoded.exe
      C:\Users\Admin\AppData\Local\Temp\1737663604da278262d49c4244551f832f08605e950c70b8ed6e61efd3cf2c7036af37a35e584.dat-decoded.exe /stext "C:\Users\Admin\AppData\Local\Temp\qoxijdrlntyogleviwzstryvoz"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:2548
    • C:\Users\Admin\AppData\Local\Temp\1737663604da278262d49c4244551f832f08605e950c70b8ed6e61efd3cf2c7036af37a35e584.dat-decoded.exe
      C:\Users\Admin\AppData\Local\Temp\1737663604da278262d49c4244551f832f08605e950c70b8ed6e61efd3cf2c7036af37a35e584.dat-decoded.exe /stext "C:\Users\Admin\AppData\Local\Temp\bqkskvknbbqtjrszrhulewslxohno"
      2⤵
      • Accesses Microsoft Outlook accounts
      • System Location Discovery: System Language Discovery
      PID:2428
    • C:\Users\Admin\AppData\Local\Temp\1737663604da278262d49c4244551f832f08605e950c70b8ed6e61efd3cf2c7036af37a35e584.dat-decoded.exe
      C:\Users\Admin\AppData\Local\Temp\1737663604da278262d49c4244551f832f08605e950c70b8ed6e61efd3cf2c7036af37a35e584.dat-decoded.exe /stext "C:\Users\Admin\AppData\Local\Temp\dkqllnvgpjigtxgdarhnhjnugurnhhrv"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3216

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    34c2d34399e4ac7375836ff7a371e216

    SHA1

    60b1da7a0641e0164143ecd39648eae9817b64a9

    SHA256

    78cbd6e02a03e6283a2eabf4cca93c8062d446015603abb3b19140807876da89

    SHA512

    300c0b939101aa85f0a560224a1d409e503081254e637725942df90323a19c30a0e7edb99b72606da71c1c031caa81016b626c5ec421cf85c0d5744a04048842

  • C:\Users\Admin\AppData\Local\Temp\qoxijdrlntyogleviwzstryvoz

    Filesize

    4KB

    MD5

    7aca43b2800ceb18b3ed2326532545de

    SHA1

    d4cf207ef85bd749d59c1cb27a09c167ee21523a

    SHA256

    3d9f8622d97587fd84d3d0560a50ab38e5f894fe4b5bcaa34279643fdaaeb480

    SHA512

    0e002e6b8d965c227d9b1aa7c0251619c787ec7717e59667e756e5815e3666a955ea397eb148a1ed6bb7d8045727e4efa656a103f14bc70a03b03f0c91283c2f

  • memory/2428-4-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2428-18-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2428-19-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2428-27-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2428-23-0x0000000000470000-0x0000000000539000-memory.dmp

    Filesize

    804KB

  • memory/2428-16-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2548-7-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2548-2-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2548-31-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2548-14-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2548-12-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2848-38-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2848-54-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2848-50-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2848-0-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2848-37-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/2848-77-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2848-57-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2848-74-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2848-36-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/2848-33-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/2848-39-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2848-40-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2848-42-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2848-44-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2848-80-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2848-47-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/3216-13-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3216-8-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3216-15-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3216-11-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3216-25-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3216-10-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB