Analysis

  • max time kernel
    138s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/03/2024, 01:06

General

  • Target
    RECHNUNGEN MIT IBAN.exe
  • Size 683KB
  • Sample240327-bf3pfsbe6z
  • SHA256 79216525955a188f2a55f94514cfe9b9c0c1ce1e116d930cd9c5600dfb46ddfd
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • nanocore

Version
  • 1.2.2.0

C2
  • 194.147.140.158:2323

Mutex
  • a988db37-80f7-4d81-b262-bd14326766b3

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    194.147.140.158

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2023-12-23T03:20:22.055277036Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    2323

  • default_group

    image

  • enable_debug_mode

    true

  • gc_threshold

    1.048576e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.048576e+07

  • mutex

    a988db37-80f7-4d81-b262-bd14326766b3

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    194.147.140.158

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Signatures

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Uses the VBS compiler for execution 1 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 41 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RECHNUNGEN MIT IBAN.exe
    "C:\Users\Admin\AppData\Local\Temp\RECHNUNGEN MIT IBAN.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1952
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\RECHNUNGEN MIT IBAN.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3364
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QSiydtxApqxOny.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1128
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QSiydtxApqxOny" /XML "C:\Users\Admin\AppData\Local\Temp\tmp84B1.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1572
    • C:\Users\Admin\AppData\Local\Temp\RECHNUNGEN MIT IBAN.exe
      "C:\Users\Admin\AppData\Local\Temp\RECHNUNGEN MIT IBAN.exe"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2260
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "PCI Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8879.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:5028
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "PCI Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp89C2.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:4320
      • \??\c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe
        "c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe" /shtml "C:\Users\Admin\AppData\Local\Temp\bid4b03b.gox"
        3⤵
          PID:4320
        • \??\c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe
          "c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe" /shtml "C:\Users\Admin\AppData\Local\Temp\bid4b03b.gox"
          3⤵
            PID:4748
          • \??\c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe
            "c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe" /shtml "C:\Users\Admin\AppData\Local\Temp\bid4b03b.gox"
            3⤵
              PID:3764
            • \??\c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe
              "c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe" /shtml "C:\Users\Admin\AppData\Local\Temp\bid4b03b.gox"
              3⤵
                PID:2600
              • \??\c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe
                "c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe" /shtml "C:\Users\Admin\AppData\Local\Temp\bid4b03b.gox"
                3⤵
                  PID:760
                • \??\c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe
                  "c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe" /shtml "C:\Users\Admin\AppData\Local\Temp\1zwnw3fa.sbz"
                  3⤵
                    PID:5092
                  • \??\c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe
                    "c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe" /shtml "C:\Users\Admin\AppData\Local\Temp\1zwnw3fa.sbz"
                    3⤵
                      PID:1528
                    • \??\c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe
                      "c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe" /shtml "C:\Users\Admin\AppData\Local\Temp\1zwnw3fa.sbz"
                      3⤵
                        PID:3844
                      • \??\c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe
                        "c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe" /shtml "C:\Users\Admin\AppData\Local\Temp\1zwnw3fa.sbz"
                        3⤵
                          PID:3080
                        • \??\c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe
                          "c:\windows\microsoft.net\framework\v4.0.30319\vbc.exe" /shtml "C:\Users\Admin\AppData\Local\Temp\1zwnw3fa.sbz"
                          3⤵
                            PID:2856

                      Network

                            MITRE ATT&CK Enterprise v15

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            RECHNUNGEN MIT IBAN.exe.log

                            • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RECHNUNGEN MIT IBAN.exe.log
                            • Size 1KB
                            • SHA256 1e1b444fe2d8772f6709b22b94bb5b0aa7fa590f6a693705d9bf1f2f71267a55
                            • MD5 SHA1 SHA512

                            StartupProfileData-NonInteractive

                            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                            • Size 18KB
                            • SHA256 081fe9e151f027d0b1c5848a4a9c71ab5fb17178f1e9cf06c7e594535134768f
                            • MD5 SHA1 SHA512 SSDEEP

                            __PSScriptPolicyTest_01drtu40.gla.ps1

                            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_01drtu40.gla.ps1
                            • Size 60B
                            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                            • MD5 SHA1 SHA512

                            tmp84B1.tmp

                            • Path C:\Users\Admin\AppData\Local\Temp\tmp84B1.tmp
                            • Size 1KB
                            • SHA256 5bde054af26254327243607bc46d401b05b5f178415b23001a9f035901be81ae
                            • MD5 SHA1 SHA512

                            tmp8879.tmp

                            • Path C:\Users\Admin\AppData\Local\Temp\tmp8879.tmp
                            • Size 1KB
                            • SHA256 39e8909622f6f0da87f42525aa4b0a648f965df5a15fa16a6ba9475b05fa245f
                            • MD5 SHA1 SHA512

                            tmp89C2.tmp

                            • Path C:\Users\Admin\AppData\Local\Temp\tmp89C2.tmp
                            • Size 1KB
                            • SHA256 192ac26e1895b267149bde35c55327f4a441693495239da5899062924d45bd11
                            • MD5 SHA1 SHA512

                            memory/1128-93-0x00000000077E0000-0x00000000077EA000-memory.dmp

                            memory/1128-94-0x00000000079F0000-0x0000000007A86000-memory.dmp

                            memory/1128-22-0x0000000074930000-0x00000000750E0000-memory.dmp

                            memory/1128-26-0x0000000005530000-0x0000000005596000-memory.dmp

                            memory/1128-67-0x0000000070C80000-0x0000000070CCC000-memory.dmp

                            memory/1128-82-0x00000000073B0000-0x00000000073CE000-memory.dmp

                            memory/1128-91-0x0000000007DC0000-0x000000000843A000-memory.dmp

                            memory/1128-107-0x0000000074930000-0x00000000750E0000-memory.dmp

                            memory/1128-96-0x00000000079A0000-0x00000000079AE000-memory.dmp

                            memory/1128-23-0x0000000005060000-0x0000000005070000-memory.dmp

                            memory/1128-66-0x000000007F350000-0x000000007F360000-memory.dmp

                            memory/1952-8-0x0000000008800000-0x0000000008812000-memory.dmp

                            memory/1952-19-0x0000000005740000-0x0000000005750000-memory.dmp

                            memory/1952-16-0x0000000074930000-0x00000000750E0000-memory.dmp

                            memory/1952-10-0x0000000007050000-0x00000000070CA000-memory.dmp

                            memory/1952-9-0x0000000006D50000-0x0000000006D5C000-memory.dmp

                            memory/1952-7-0x0000000008870000-0x000000000890C000-memory.dmp

                            memory/1952-6-0x0000000005D30000-0x0000000005D3A000-memory.dmp

                            memory/1952-5-0x0000000005740000-0x0000000005750000-memory.dmp

                            memory/1952-50-0x0000000074930000-0x00000000750E0000-memory.dmp

                            memory/1952-4-0x0000000005870000-0x0000000005BC4000-memory.dmp

                            memory/1952-3-0x00000000057D0000-0x0000000005862000-memory.dmp

                            memory/1952-2-0x0000000005D80000-0x0000000006324000-memory.dmp

                            memory/1952-0-0x0000000000D80000-0x0000000000E30000-memory.dmp

                            memory/1952-1-0x0000000074930000-0x00000000750E0000-memory.dmp

                            memory/2260-63-0x0000000005FC0000-0x0000000005FCA000-memory.dmp

                            memory/2260-111-0x00000000066F0000-0x000000000670A000-memory.dmp

                            memory/2260-62-0x0000000005F90000-0x0000000005FAE000-memory.dmp

                            memory/2260-128-0x0000000074930000-0x00000000750E0000-memory.dmp

                            memory/2260-110-0x00000000066E0000-0x00000000066F2000-memory.dmp

                            memory/2260-112-0x0000000006720000-0x000000000672E000-memory.dmp

                            memory/2260-113-0x0000000006730000-0x0000000006742000-memory.dmp

                            memory/2260-114-0x0000000006740000-0x000000000674C000-memory.dmp

                            memory/2260-115-0x0000000006750000-0x000000000675E000-memory.dmp

                            memory/2260-116-0x0000000006760000-0x0000000006774000-memory.dmp

                            memory/2260-61-0x0000000005040000-0x000000000504A000-memory.dmp

                            memory/2260-51-0x0000000005060000-0x0000000005070000-memory.dmp

                            memory/2260-49-0x0000000074930000-0x00000000750E0000-memory.dmp

                            memory/2260-46-0x0000000000400000-0x0000000000438000-memory.dmp

                            memory/2260-117-0x0000000006770000-0x0000000006780000-memory.dmp

                            memory/2260-118-0x0000000006790000-0x00000000067A4000-memory.dmp

                            memory/2260-119-0x00000000067B0000-0x00000000067BE000-memory.dmp

                            memory/2260-120-0x00000000067C0000-0x00000000067EE000-memory.dmp

                            memory/2260-121-0x00000000067F0000-0x0000000006804000-memory.dmp

                            memory/3364-92-0x00000000078F0000-0x000000000790A000-memory.dmp

                            memory/3364-95-0x0000000007AF0000-0x0000000007B01000-memory.dmp

                            memory/3364-99-0x0000000007C10000-0x0000000007C18000-memory.dmp

                            memory/3364-97-0x0000000007B30000-0x0000000007B44000-memory.dmp

                            memory/3364-108-0x0000000074930000-0x00000000750E0000-memory.dmp

                            memory/3364-18-0x0000000005100000-0x0000000005110000-memory.dmp

                            memory/3364-17-0x0000000074930000-0x00000000750E0000-memory.dmp

                            memory/3364-15-0x0000000004FF0000-0x0000000005026000-memory.dmp

                            memory/3364-20-0x0000000005100000-0x0000000005110000-memory.dmp

                            memory/3364-21-0x0000000005740000-0x0000000005D68000-memory.dmp

                            memory/3364-24-0x0000000005700000-0x0000000005722000-memory.dmp

                            memory/3364-98-0x0000000007C30000-0x0000000007C4A000-memory.dmp

                            memory/3364-27-0x0000000005F50000-0x0000000005FB6000-memory.dmp

                            memory/3364-68-0x0000000070C80000-0x0000000070CCC000-memory.dmp

                            memory/3364-89-0x0000000005100000-0x0000000005110000-memory.dmp

                            memory/3364-90-0x00000000077D0000-0x0000000007873000-memory.dmp

                            memory/3364-87-0x0000000005100000-0x0000000005110000-memory.dmp

                            memory/3364-65-0x0000000007770000-0x00000000077A2000-memory.dmp

                            memory/3364-64-0x000000007FB20000-0x000000007FB30000-memory.dmp

                            memory/3364-52-0x00000000065D0000-0x00000000065EE000-memory.dmp

                            memory/3364-56-0x0000000006660000-0x00000000066AC000-memory.dmp