Analysis

  • max time kernel
    134s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/06/2024, 07:37

General

  • Target
    Setup.exe
  • Size 955KB
  • Sample240605-jfss9aaf34
  • SHA256 a4125660bc7eacca3f52f76caef4dd28ff5e08b41a28d853b8cac67ef6f723c3
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealc

rc4.plain

Extracted

Family
  • vidar

C2
  • https://t.me/ta904ek

  • https://steamcommunity.com/profiles/76561199695752269

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Signatures

  • Detect Vidar Stealer 20 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 1 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Setup.exe
    "C:\Users\Admin\AppData\Local\Temp\Setup.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:964
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k copy Room Room.cmd & Room.cmd & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1256
      • C:\Windows\SysWOW64\tasklist.exe
        tasklist
        3⤵
        • Enumerates processes with tasklist
        • Suspicious use of AdjustPrivilegeToken
        PID:2660
      • C:\Windows\SysWOW64\findstr.exe
        findstr /I "wrsa.exe opssvc.exe"
        3⤵
          PID:5020
        • C:\Windows\SysWOW64\tasklist.exe
          tasklist
          3⤵
          • Enumerates processes with tasklist
          • Suspicious use of AdjustPrivilegeToken
          PID:3448
        • C:\Windows\SysWOW64\findstr.exe
          findstr /I "avastui.exe avgui.exe nswscsvc.exe sophoshealth.exe"
          3⤵
            PID:2252
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c md 304707
            3⤵
              PID:3384
            • C:\Windows\SysWOW64\findstr.exe
              findstr /V "proceedsscholarsbeingsattempted" Priorities
              3⤵
                PID:3816
              • C:\Windows\SysWOW64\cmd.exe
                cmd /c copy /b Impact + Spray + Highs + Ceiling 304707\z
                3⤵
                  PID:4280
                • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\304707\Shine.pif
                  304707\Shine.pif 304707\z
                  3⤵
                  • Checks computer location settings
                  • Executes dropped EXE
                  • Checks processor information in registry
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of FindShellTrayWindow
                  • Suspicious use of SendNotifyMessage
                  • Suspicious use of WriteProcessMemory
                  PID:3452
                  • C:\Windows\SysWOW64\cmd.exe
                    "C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\304707\Shine.pif" & rd /s /q "C:\ProgramData\FIIECFHDBAAE" & exit
                    4⤵
                    • Suspicious use of WriteProcessMemory
                    PID:2928
                    • C:\Windows\SysWOW64\timeout.exe
                      timeout /t 10
                      5⤵
                      • Delays execution with timeout.exe
                      PID:3084
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 15 127.0.0.1
                  3⤵
                  • Runs ping.exe
                  PID:4696

            Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  Shine.pif

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\304707\Shine.pif
                  • Size 915KB
                  • SHA256 8498900e57a490404e7ec4d8159bee29aed5852ae88bd484141780eaadb727bb
                  • MD5 SHA1 SHA512 SSDEEP

                  z

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\304707\z
                  • Size 372KB
                  • SHA256 6363324addcacdb08d9134b6005a9e99e4793dd927b8c4f3d67d250853440e5d
                  • MD5 SHA1 SHA512 SSDEEP

                  Albert

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Albert
                  • Size 20KB
                  • SHA256 f0d335312413f293c46796acfff3649c2cbb88f40e6d6e68fe367ed0f82922cd
                  • MD5 SHA1 SHA512 SSDEEP

                  Cambridge

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Cambridge
                  • Size 52KB
                  • SHA256 c5f686d90250df5f2e8615163a54b36056f9a6dbe8d8d73f8916f26784b1c97b
                  • MD5 SHA1 SHA512 SSDEEP

                  Ceiling

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Ceiling
                  • Size 50KB
                  • SHA256 f56fc2515cb14a957ad25b69707f3614a9e48d3255191f43f0a92c8f80673765
                  • MD5 SHA1 SHA512 SSDEEP

                  Cnet

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Cnet
                  • Size 29KB
                  • SHA256 8abad5c8bf20f6d59ef831d5b6f068ab84b28e1e3cb99080500ed7e3d86752f3
                  • MD5 SHA1 SHA512 SSDEEP

                  Containers

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Containers
                  • Size 25KB
                  • SHA256 8e79a421547ecb026103552ac6dc9981fae639ec8cf80ace0f5eb785700f3125
                  • MD5 SHA1 SHA512 SSDEEP

                  Cost

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Cost
                  • Size 37KB
                  • SHA256 b5ef3500532c83714548ca76cc3e596b56526fb8ec066ccbd09099a727e21659
                  • MD5 SHA1 SHA512 SSDEEP

                  Cowboy

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Cowboy
                  • Size 40KB
                  • SHA256 c6d5ac7393f735ff356d1ec357090ef4041ee21e76442b8c56b72c81235d4d0a
                  • MD5 SHA1 SHA512 SSDEEP

                  Earth

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Earth
                  • Size 30KB
                  • SHA256 826d54a4bfdaa6bf94f9aa539cef7500615aa3302269542d626bfcffaacd40e8
                  • MD5 SHA1 SHA512 SSDEEP

                  Echo

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Echo
                  • Size 38KB
                  • SHA256 d4f16caed11e8b0483e2fdff4f5a8ce4616c04329e1229f81b55c6fe3172ff92
                  • MD5 SHA1 SHA512 SSDEEP

                  Exceed

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Exceed
                  • Size 17KB
                  • SHA256 a8b4c0b980f6ad61c96dec7980518abf53d52b7fc412369776d561b36efeff51
                  • MD5 SHA1 SHA512 SSDEEP

                  Exhibitions

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Exhibitions
                  • Size 48KB
                  • SHA256 e43dd9cb0d3f2818af01e68f63634ee59755a9cfd4138193906216d88f10143d
                  • MD5 SHA1 SHA512 SSDEEP

                  Gnu

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Gnu
                  • Size 35KB
                  • SHA256 07e9af45d4dfdca450c1b4f022b32d05e5245f6bbe93bfdadfdd80ecc5c57c06
                  • MD5 SHA1 SHA512 SSDEEP

                  Highs

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Highs
                  • Size 77KB
                  • SHA256 6e73ca78a3d5a9d458291b89f4ec69aef6f04483836092dae213cf6f951f8db6
                  • MD5 SHA1 SHA512 SSDEEP

                  Hostels

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Hostels
                  • Size 28KB
                  • SHA256 e512764af89828234d01597420478c9fb2e1d213f1f367aeda70933e15a8c375
                  • MD5 SHA1 SHA512 SSDEEP

                  Impact

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Impact
                  • Size 146KB
                  • SHA256 7972ee49faae16910e0b7b318c8fb81c62f99138b6786bf2f169230db8b93912
                  • MD5 SHA1 SHA512 SSDEEP

                  Jungle

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Jungle
                  • Size 15KB
                  • SHA256 cf3f326aac1f32c2d53fc00958073398e3fa04ee9d1bb6a361013bc45e1e6f8b
                  • MD5 SHA1 SHA512 SSDEEP

                  Kingdom

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Kingdom
                  • Size 13KB
                  • SHA256 d9ebb830674e85027183ce2df03c62888030f4dae82c7471aadb832f22b5414f
                  • MD5 SHA1 SHA512 SSDEEP

                  Min

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Min
                  • Size 63KB
                  • SHA256 9e5923fe6745fc55747b94cdcd2dddb10dd8733a2dce1b85e428644793bf0380
                  • MD5 SHA1 SHA512 SSDEEP

                  Moon

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Moon
                  • Size 15KB
                  • SHA256 3541881a222a40c41a11c8215b52959fa661214f5a4a9c70bd49f834adafab71
                  • MD5 SHA1 SHA512 SSDEEP

                  Nick

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Nick
                  • Size 65KB
                  • SHA256 b474c63f62a8e729e3527d64b84d37d560c865e03afd22d5f1c97cc9555a3060
                  • MD5 SHA1 SHA512 SSDEEP

                  Normally

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Normally
                  • Size 66KB
                  • SHA256 a3b8e07b3be465a4258e890ecd71fb9d421768ba18c2346ff32eda3488a58df9
                  • MD5 SHA1 SHA512 SSDEEP

                  Nov

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Nov
                  • Size 47KB
                  • SHA256 eaa25673d8e4b9256f4ca127da71ae4c9180cd1e9f4d44d45a0d58c846f97bb3
                  • MD5 SHA1 SHA512 SSDEEP

                  Priorities

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Priorities
                  • Size 92B
                  • SHA256 34c75ff522b8a9db076aae0e42e95ad0beb77bd6ffbfc16b6774b0d45b0b911d
                  • MD5 SHA1 SHA512

                  Ray

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Ray
                  • Size 19KB
                  • SHA256 3a11c16b348481f39066ab3e0ec033dd477f29785eed2da0ada0bd2f3a9d03bb
                  • MD5 SHA1 SHA512 SSDEEP

                  Room

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Room
                  • Size 23KB
                  • SHA256 6d407c39e84b8f4edb6946fb7993d4055b781d8952200cb8e8c117f92c32e1d3
                  • MD5 SHA1 SHA512 SSDEEP

                  Rough

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Rough
                  • Size 34KB
                  • SHA256 3b4ae6f80f9eba9189aaa2c7d79f5dd10a41ae91020db899b23131ea36d7a649
                  • MD5 SHA1 SHA512 SSDEEP

                  Screens

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Screens
                  • Size 42KB
                  • SHA256 eda59b06cea3af8fc01c8b51d364d89fe79e998336a4873555cee76fb4bd8d4b
                  • MD5 SHA1 SHA512 SSDEEP

                  Skill

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Skill
                  • Size 33KB
                  • SHA256 31e35c0d393f73d20ecc3680528d17d9837d4913d391cd7cc85770e815a38735
                  • MD5 SHA1 SHA512 SSDEEP

                  Spray

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Spray
                  • Size 99KB
                  • SHA256 868510635eeef94d64f712499091e79e09bcba0ee222894057b0e8941684b0aa
                  • MD5 SHA1 SHA512 SSDEEP

                  Technology

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Technology
                  • Size 31KB
                  • SHA256 626eaa6ed33fb5244d3484d53a06323302bf83dcefe9a6d09b1d94944acebdd8
                  • MD5 SHA1 SHA512 SSDEEP

                  Transactions

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Transactions
                  • Size 22KB
                  • SHA256 d961f3d6995e518d02190164efaeeca050ecd2badbd278481fc4ac8d0121bfab
                  • MD5 SHA1 SHA512 SSDEEP

                  Wallpapers

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Wallpapers
                  • Size 51KB
                  • SHA256 229b4250fdbbfc9ee38717100e68d7e8b67ec20e309bf8e5c1d94e8c2c27d27e
                  • MD5 SHA1 SHA512 SSDEEP

                  memory/3452-607-0x0000000007770000-0x00000000079B9000-memory.dmp

                  memory/3452-624-0x0000000007770000-0x00000000079B9000-memory.dmp

                  memory/3452-575-0x0000000007770000-0x00000000079B9000-memory.dmp

                  memory/3452-576-0x0000000007770000-0x00000000079B9000-memory.dmp

                  memory/3452-577-0x0000000007770000-0x00000000079B9000-memory.dmp

                  memory/3452-589-0x0000000007770000-0x00000000079B9000-memory.dmp

                  memory/3452-590-0x0000000007770000-0x00000000079B9000-memory.dmp

                  memory/3452-592-0x0000000010000000-0x000000001025F000-memory.dmp

                  memory/3452-606-0x0000000007770000-0x00000000079B9000-memory.dmp

                  memory/3452-573-0x0000000007770000-0x00000000079B9000-memory.dmp

                  memory/3452-623-0x0000000007770000-0x00000000079B9000-memory.dmp

                  memory/3452-574-0x0000000007770000-0x00000000079B9000-memory.dmp

                  memory/3452-647-0x0000000007770000-0x00000000079B9000-memory.dmp

                  memory/3452-648-0x0000000007770000-0x00000000079B9000-memory.dmp

                  memory/3452-652-0x0000000007770000-0x00000000079B9000-memory.dmp

                  memory/3452-653-0x0000000007770000-0x00000000079B9000-memory.dmp

                  memory/3452-660-0x0000000007770000-0x00000000079B9000-memory.dmp

                  memory/3452-661-0x0000000007770000-0x00000000079B9000-memory.dmp

                  memory/3452-665-0x0000000007770000-0x00000000079B9000-memory.dmp

                  memory/3452-666-0x0000000007770000-0x00000000079B9000-memory.dmp

                  memory/3452-670-0x0000000007770000-0x00000000079B9000-memory.dmp

                  memory/3452-671-0x0000000007770000-0x00000000079B9000-memory.dmp

                  memory/3452-672-0x0000000007770000-0x00000000079B9000-memory.dmp

                  memory/3452-673-0x0000000007770000-0x00000000079B9000-memory.dmp