Resubmissions

21-05-2024 10:56

240521-m1yrsaah95 10

17-05-2024 09:33

240517-lh8nlabg6x 10

17-05-2024 09:25

240517-ldlchabh35 10

Analysis

  • max time kernel
    155s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-05-2024 09:25

General

  • Target

    SecuriteInfo.com.Trojan.DownLoader46.63573.25866.32524.exe

  • Size

    1.1MB

  • MD5

    ab8be64fd575f219a2ff48c82eeebf81

  • SHA1

    af39348f99e58dc93a79fdb66e51f73f135a4a4b

  • SHA256

    51e3e221774cbf9c557325fdf05fae962db239979cf28694c83170b1c9963c6a

  • SHA512

    4c014e1578bf1b1f9f294c204f0717f80ed8ed798ed5551cae389bdc943ded559936069f2d0cf3cc6fdf501c3a84309773463a06bc7995682068f7d1ecaf8a42

  • SSDEEP

    24576:b6G5oq6WlY5EQJbBCt598PkfzGwWPEXyqc:bPQrJChIP1q

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.zoho.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    IDMzp2Gy8uh9

Extracted

Family

remcos

Botnet

RemoteHost

C2

timeisnow.duckdns.org:4343

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-6P097R

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    5

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Remcos

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

  • NirSoft MailPassView 3 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 3 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 8 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • 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
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Script User-Agent 2 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoader46.63573.25866.32524.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoader46.63573.25866.32524.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2136
    • C:\Windows\SysWOW64\extrac32.exe
      C:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoader46.63573.25866.32524.exe C:\\Users\\Public\\Libraries\\Nbksvykc.PIF
      2⤵
        PID:4580
      • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoader46.63573.25866.32524.exe
        C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoader46.63573.25866.32524.exe
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4584
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://go.microsoft.com/fwlink/?prd=11324&pver=4.5&sbp=AppLaunch2&plcid=0x409&o1=SHIM_NOVERSION_FOUND&version=(null)&processName=SecuriteInfo.com.Trojan.DownLoader46.63573.25866.32524.exe&platform=0009&osver=6&isServer=0&shimver=4.0.30319.0
          3⤵
            PID:844
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://go.microsoft.com/fwlink/?prd=11324&pver=4.5&sbp=AppLaunch2&plcid=0x409&o1=SHIM_NOVERSION_FOUND&version=(null)&processName=SecuriteInfo.com.Trojan.DownLoader46.63573.25866.32524.exe&platform=0009&osver=6&isServer=0&shimver=4.0.30319.0
            3⤵
              PID:1884
          • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoader46.63573.25866.32524.exe
            C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoader46.63573.25866.32524.exe /stext "C:\Users\Admin\AppData\Local\Temp\eewhipwjdgroasnixnzifydlwrdut"
            2⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:1976
          • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoader46.63573.25866.32524.exe
            C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoader46.63573.25866.32524.exe /stext "C:\Users\Admin\AppData\Local\Temp\ogcziigkrojblybmpytjqdycfyvvugyot"
            2⤵
            • Accesses Microsoft Outlook accounts
            PID:3344
          • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoader46.63573.25866.32524.exe
            C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoader46.63573.25866.32524.exe /stext "C:\Users\Admin\AppData\Local\Temp\yapkj"
            2⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2064
          • C:\Users\Admin\AppData\Roaming\FxFile.exe
            "C:\Users\Admin\AppData\Roaming\FxFile.exe"
            2⤵
            • Executes dropped EXE
            • Adds Run key to start application
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:1348
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=2808 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:8
          1⤵
            PID:1020
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --no-appcompat-clear --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=18 --mojo-platform-channel-handle=3808 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:1
            1⤵
              PID:3176
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --no-appcompat-clear --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=19 --mojo-platform-channel-handle=5764 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:1
              1⤵
                PID:3096
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --no-appcompat-clear --disable-gpu-compositing --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=20 --mojo-platform-channel-handle=5464 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:1
                1⤵
                  PID:2880
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --no-appcompat-clear --disable-gpu-compositing --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=21 --mojo-platform-channel-handle=5796 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:1
                  1⤵
                    PID:388
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --mojo-platform-channel-handle=752 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:8
                    1⤵
                      PID:524
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --no-appcompat-clear --disable-gpu-compositing --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=23 --mojo-platform-channel-handle=3808 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:1
                      1⤵
                        PID:3368
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --no-appcompat-clear --disable-gpu-compositing --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=24 --mojo-platform-channel-handle=5704 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:1
                        1⤵
                          PID:1780
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=edge_search_indexer.mojom.SearchIndexerInterfaceBroker --lang=en-US --service-sandbox-type=search_indexer --message-loop-type-ui --no-appcompat-clear --mojo-platform-channel-handle=5620 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:8
                          1⤵
                            PID:2332

                          Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          • C:\ProgramData\remcos\logs.dat

                            Filesize

                            144B

                            MD5

                            da2a4f2920d682af15dd9f45dc6e0c79

                            SHA1

                            427ce991fbb32ebebee87c3b6cc8549ba7c4d53d

                            SHA256

                            eaae7d6be103be5d9887242fd71582876a93ed3f7550763e6c7dda3f17128659

                            SHA512

                            2300d35c363fa03a9518aa0a71506abad5a93984ce12db23dbb509dfc4ebef2d26954c438bd8889578811c66e5b1b7a0ccb24679c34e62f304dba753543b22bf

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

                            Filesize

                            4KB

                            MD5

                            10fa8ec140c204486092fb161e567ec7

                            SHA1

                            4d63e1f8df3afefedb19df73d7ee5f3b1e7b6473

                            SHA256

                            7176ca3d0196ec46f178107fdb587adaef3f6ea65daa80eccd2371a515880e04

                            SHA512

                            9db4eeb3f07d8d0579f75f3426c91156809152d8c1a37c9a27bf159888f6dd97f1212ac80f5bbb17e4d86f3087c512ccba2ca50a2db07d071370bd36364e1f76

                          • C:\Users\Admin\AppData\Roaming\FxFile.exe

                            Filesize

                            246KB

                            MD5

                            bfb8a979efec55c75d1530702239d741

                            SHA1

                            03d5f2fba57dd1b1507a16221aaf003fa0d548d4

                            SHA256

                            ba7541211cc1c286dcdd1dfce89c9ed1827544bffcba2263270e461a45b00b2c

                            SHA512

                            591d7955eef3fd0e0d6642f531c6afa54df50a051b3cf232d225c69d9f1d4fce786e269da1a627a9e1a0b913a6c9579cba4be77f18b54241185d6e9d03954c75

                          • memory/1348-92-0x0000000006B60000-0x0000000006BB0000-memory.dmp

                            Filesize

                            320KB

                          • memory/1348-93-0x0000000006C50000-0x0000000006CEC000-memory.dmp

                            Filesize

                            624KB

                          • memory/1348-97-0x0000000006C30000-0x0000000006C3A000-memory.dmp

                            Filesize

                            40KB

                          • memory/1348-87-0x0000000005540000-0x00000000055A6000-memory.dmp

                            Filesize

                            408KB

                          • memory/1348-84-0x0000000005A80000-0x0000000006024000-memory.dmp

                            Filesize

                            5.6MB

                          • memory/1348-83-0x0000000000A20000-0x0000000000A64000-memory.dmp

                            Filesize

                            272KB

                          • memory/1348-96-0x0000000006EF0000-0x0000000006F82000-memory.dmp

                            Filesize

                            584KB

                          • memory/1976-28-0x0000000000400000-0x0000000000478000-memory.dmp

                            Filesize

                            480KB

                          • memory/1976-31-0x0000000000400000-0x0000000000478000-memory.dmp

                            Filesize

                            480KB

                          • memory/1976-70-0x0000000000400000-0x0000000000478000-memory.dmp

                            Filesize

                            480KB

                          • memory/1976-35-0x0000000000400000-0x0000000000478000-memory.dmp

                            Filesize

                            480KB

                          • memory/1976-37-0x0000000000400000-0x0000000000478000-memory.dmp

                            Filesize

                            480KB

                          • memory/2064-46-0x0000000000490000-0x0000000000559000-memory.dmp

                            Filesize

                            804KB

                          • memory/2064-42-0x0000000000400000-0x0000000000424000-memory.dmp

                            Filesize

                            144KB

                          • memory/2064-51-0x0000000000400000-0x0000000000424000-memory.dmp

                            Filesize

                            144KB

                          • memory/2064-43-0x0000000000400000-0x0000000000424000-memory.dmp

                            Filesize

                            144KB

                          • memory/2064-41-0x0000000000400000-0x0000000000424000-memory.dmp

                            Filesize

                            144KB

                          • memory/2136-24-0x0000000027A90000-0x0000000028A90000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/2136-79-0x0000000027A90000-0x0000000028A90000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/2136-123-0x0000000027A90000-0x0000000028A90000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/2136-112-0x0000000027A90000-0x0000000028A90000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/2136-113-0x0000000027A90000-0x0000000028A90000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/2136-26-0x0000000027A90000-0x0000000028A90000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/2136-102-0x0000000027A90000-0x0000000028A90000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/2136-101-0x0000000027A90000-0x0000000028A90000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/2136-0-0x0000000000400000-0x000000000051D000-memory.dmp

                            Filesize

                            1.1MB

                          • memory/2136-22-0x0000000027A90000-0x0000000028A90000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/2136-21-0x0000000027A90000-0x0000000028A90000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/2136-19-0x0000000027A90000-0x0000000028A90000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/2136-77-0x0000000045E90000-0x0000000045EA9000-memory.dmp

                            Filesize

                            100KB

                          • memory/2136-76-0x0000000045E90000-0x0000000045EA9000-memory.dmp

                            Filesize

                            100KB

                          • memory/2136-73-0x0000000045E90000-0x0000000045EA9000-memory.dmp

                            Filesize

                            100KB

                          • memory/2136-18-0x0000000027A90000-0x0000000028A90000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/2136-80-0x0000000027A90000-0x0000000028A90000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/2136-1-0x0000000002300000-0x0000000002301000-memory.dmp

                            Filesize

                            4KB

                          • memory/2136-82-0x0000000027A90000-0x0000000028A90000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/2136-81-0x0000000027A90000-0x0000000028A90000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/2136-15-0x0000000027A90000-0x0000000028A90000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/2136-16-0x0000000027A90000-0x0000000028A90000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/2136-14-0x0000000027A90000-0x0000000028A90000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/2136-12-0x0000000027A90000-0x0000000028A90000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/2136-9-0x0000000027A90000-0x0000000028A90000-memory.dmp

                            Filesize

                            16.0MB

                          • memory/2136-3-0x0000000000400000-0x000000000051D000-memory.dmp

                            Filesize

                            1.1MB

                          • memory/2136-2-0x0000000000400000-0x000000000051D000-memory.dmp

                            Filesize

                            1.1MB

                          • memory/3344-36-0x0000000000400000-0x0000000000462000-memory.dmp

                            Filesize

                            392KB

                          • memory/3344-38-0x0000000000400000-0x0000000000462000-memory.dmp

                            Filesize

                            392KB

                          • memory/3344-32-0x0000000000400000-0x0000000000462000-memory.dmp

                            Filesize

                            392KB

                          • memory/3344-40-0x0000000000400000-0x0000000000462000-memory.dmp

                            Filesize

                            392KB

                          • memory/3344-45-0x0000000000400000-0x0000000000462000-memory.dmp

                            Filesize

                            392KB

                          • memory/4584-25-0x0000000000520000-0x0000000000564000-memory.dmp

                            Filesize

                            272KB