Analysis

  • max time kernel
    145s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    02/07/2022, 14:37

General

  • Target
    95ef7c9e66fcc7c240a8c9c5ed8abe9f.exe
  • Size 402KB
  • Sample220702-ry481ahfb7
  • SHA256 7d05e90390687a0769c9df39213aa6d3d08d704e30cef0ee2e31e93f8aeac01d
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • vidar

Version
  • 53

Botnet
  • 1448

C2
  • https://t.me/ch_inagroup

  • https://mastodon.social/@olegf9844e

Attributes
  • profile_id

    1448

Extracted

Family
  • amadey

Version
  • 3.21

C2
  • 185.215.113.15/Lkb2dxj3/index.php

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • Detect Amadey credential stealer module 2 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • suricata: ET MALWARE Amadey CnC Check-In

    suricata: ET MALWARE Amadey CnC Check-In

  • suricata: ET MALWARE Vidar/Arkei/Megumin Stealer Keywords Retrieved

    suricata: ET MALWARE Vidar/Arkei/Megumin Stealer Keywords Retrieved

  • suricata: ET MALWARE W32/Agent.OGR!tr.pws Stealer

    suricata: ET MALWARE W32/Agent.OGR!tr.pws Stealer

  • Vidar Stealer 4 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Loads dropped DLL 3 IoCs
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
  • 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). Likely ransomware behaviour.

  • Program crash 4 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\95ef7c9e66fcc7c240a8c9c5ed8abe9f.exe
    "C:\Users\Admin\AppData\Local\Temp\95ef7c9e66fcc7c240a8c9c5ed8abe9f.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:320
    • C:\ProgramData\23586198092273993292.exe
      "C:\ProgramData\23586198092273993292.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:5020
      • C:\Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe
        "C:\Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe"
        3⤵
        • Executes dropped EXE
        • Checks computer location settings
        • Suspicious use of WriteProcessMemory
        PID:1644
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /C REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" /f /v Startup /t REG_SZ /d C:\Users\Admin\AppData\Local\Temp\62eca45584\
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:3872
          • C:\Windows\SysWOW64\reg.exe
            REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" /f /v Startup /t REG_SZ /d C:\Users\Admin\AppData\Local\Temp\62eca45584\
            5⤵
              PID:1992
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN bguuwe.exe /TR "C:\Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe" /F
            4⤵
            • Creates scheduled task(s)
            PID:1356
          • C:\Windows\SysWOW64\rundll32.exe
            "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\110809d565579c\cred.dll, Main
            4⤵
            • Blocklisted process makes network request
            • Loads dropped DLL
            • Accesses Microsoft Outlook profiles
            • Suspicious behavior: EnumeratesProcesses
            • outlook_win_path
            PID:3248
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5020 -s 1252
          3⤵
          • Program crash
          PID:2524
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c taskkill /im 95ef7c9e66fcc7c240a8c9c5ed8abe9f.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\95ef7c9e66fcc7c240a8c9c5ed8abe9f.exe" & del C:\ProgramData\*.dll & exit
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:5056
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /im 95ef7c9e66fcc7c240a8c9c5ed8abe9f.exe /f
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:2876
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 6
          3⤵
          • Delays execution with timeout.exe
          PID:1360
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 320 -s 1880
        2⤵
        • Program crash
        PID:4612
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 320 -ip 320
      1⤵
        PID:5084
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 5020 -ip 5020
        1⤵
          PID:2012
        • C:\Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe
          C:\Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe
          1⤵
          • Executes dropped EXE
          PID:1368
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1368 -s 484
            2⤵
            • Program crash
            PID:4552
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1368 -ip 1368
          1⤵
            PID:2348
          • C:\Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe
            C:\Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe
            1⤵
            • Executes dropped EXE
            PID:2468
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 2468 -s 492
              2⤵
              • Program crash
              PID:3980
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 584 -p 2468 -ip 2468
            1⤵
              PID:1824

            Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  23586198092273993292.exe

                  • Path C:\ProgramData\23586198092273993292.exe
                  • Size 360KB
                  • SHA256 1385d9c5e2d8825b79b3fb6e480671897566b460f0187d3cce8fedd05b06f5b1
                  • MD5 SHA1 SHA512 SSDEEP

                  23586198092273993292.exe

                  • Path C:\ProgramData\23586198092273993292.exe
                  • Size 360KB
                  • SHA256 1385d9c5e2d8825b79b3fb6e480671897566b460f0187d3cce8fedd05b06f5b1
                  • MD5 SHA1 SHA512 SSDEEP

                  freebl3.dll

                  • Path C:\ProgramData\freebl3.dll
                  • Size 326KB
                  • SHA256 a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba
                  • MD5 SHA1 SHA512 SSDEEP

                  mozglue.dll

                  • Path C:\ProgramData\mozglue.dll
                  • Size 133KB
                  • SHA256 3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
                  • MD5 SHA1 SHA512 SSDEEP

                  mozglue.dll

                  • Path C:\ProgramData\mozglue.dll
                  • Size 133KB
                  • SHA256 3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
                  • MD5 SHA1 SHA512 SSDEEP

                  msvcp140.dll

                  • Path C:\ProgramData\msvcp140.dll
                  • Size 429KB
                  • SHA256 334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4
                  • MD5 SHA1 SHA512 SSDEEP

                  nss3.dll

                  • Path C:\ProgramData\nss3.dll
                  • Size 1.2MB
                  • SHA256 e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
                  • MD5 SHA1 SHA512 SSDEEP

                  nss3.dll

                  • Path C:\ProgramData\nss3.dll
                  • Size 1.2MB
                  • SHA256 e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
                  • MD5 SHA1 SHA512 SSDEEP

                  softokn3.dll

                  • Path C:\ProgramData\softokn3.dll
                  • Size 141KB
                  • SHA256 43536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083
                  • MD5 SHA1 SHA512 SSDEEP

                  vcruntime140.dll

                  • Path C:\ProgramData\vcruntime140.dll
                  • Size 81KB
                  • SHA256 c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d
                  • MD5 SHA1 SHA512 SSDEEP

                  bguuwe.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe
                  • Size 360KB
                  • SHA256 1385d9c5e2d8825b79b3fb6e480671897566b460f0187d3cce8fedd05b06f5b1
                  • MD5 SHA1 SHA512 SSDEEP

                  bguuwe.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe
                  • Size 360KB
                  • SHA256 1385d9c5e2d8825b79b3fb6e480671897566b460f0187d3cce8fedd05b06f5b1
                  • MD5 SHA1 SHA512 SSDEEP

                  bguuwe.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe
                  • Size 360KB
                  • SHA256 1385d9c5e2d8825b79b3fb6e480671897566b460f0187d3cce8fedd05b06f5b1
                  • MD5 SHA1 SHA512 SSDEEP

                  bguuwe.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe
                  • Size 360KB
                  • SHA256 1385d9c5e2d8825b79b3fb6e480671897566b460f0187d3cce8fedd05b06f5b1
                  • MD5 SHA1 SHA512 SSDEEP

                  cred.dll

                  • Path C:\Users\Admin\AppData\Roaming\110809d565579c\cred.dll
                  • Size 126KB
                  • SHA256 e49833410fea53f166523cc960fc7d60ddfcf60d0fc2024e68dbabab27ce8313
                  • MD5 SHA1 SHA512 SSDEEP

                  cred.dll

                  • Path C:\Users\Admin\AppData\Roaming\110809d565579c\cred.dll
                  • Size 126KB
                  • SHA256 e49833410fea53f166523cc960fc7d60ddfcf60d0fc2024e68dbabab27ce8313
                  • MD5 SHA1 SHA512 SSDEEP

                  memory/320-132-0x0000000000400000-0x0000000000A95000-memory.dmp

                  memory/320-165-0x0000000000AE2000-0x0000000000B0F000-memory.dmp

                  memory/320-131-0x0000000002700000-0x000000000274D000-memory.dmp

                  memory/320-166-0x0000000000400000-0x0000000000A95000-memory.dmp

                  memory/320-130-0x0000000000AE2000-0x0000000000B0F000-memory.dmp

                  memory/320-133-0x0000000060900000-0x0000000060992000-memory.dmp

                  memory/320-154-0x0000000000AE2000-0x0000000000B0F000-memory.dmp

                  memory/320-155-0x0000000000400000-0x0000000000A95000-memory.dmp

                  memory/1368-184-0x0000000000400000-0x0000000000A8A000-memory.dmp

                  memory/1368-183-0x0000000000AD4000-0x0000000000AF6000-memory.dmp

                  memory/1644-174-0x0000000000400000-0x0000000000A8A000-memory.dmp

                  memory/1644-173-0x0000000000D82000-0x0000000000DA4000-memory.dmp

                  memory/1644-181-0x0000000000400000-0x0000000000A8A000-memory.dmp

                  memory/2468-189-0x0000000000B74000-0x0000000000B96000-memory.dmp

                  memory/2468-190-0x0000000000400000-0x0000000000A8A000-memory.dmp

                  memory/5020-169-0x0000000000400000-0x0000000000A8A000-memory.dmp

                  memory/5020-168-0x0000000000AD0000-0x0000000000B12000-memory.dmp

                  memory/5020-167-0x0000000000B63000-0x0000000000B86000-memory.dmp