Analysis

  • max time kernel
    143s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    11/10/2023, 18:13

General

  • Target
    0050-1.dll
  • Size 328KB
  • Sample231011-wtql9sff75
  • SHA256 a12045a6177dd32af8b39dea93fa92962ff1716381d0d137dede1fc75ecd2c0c
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • icedid

Campaign
  • 361893872

Signatures

  • IcedID, BokBot

    IcedID is a banking trojan capable of stealing credentials.

  • Blocklisted process makes network request 6 IoCs
  • Downloads MZ/PE file
  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Discovers systems in the same network 1 TTPs 2 IoCs
  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Gathers system information 1 TTPs 1 IoCs

    Runs systeminfo.exe.

  • Modifies registry class 2 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 40 IoCs
  • Suspicious use of WriteProcessMemory 45 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\0050-1.dll
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2580
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C rundll32.exe C:\Users\Admin\AppData\Roaming\Utdebd4\Admin\Osluacpb1.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2716
      • C:\Windows\system32\rundll32.exe
        rundll32.exe C:\Users\Admin\AppData\Roaming\Utdebd4\Admin\Osluacpb1.dll,#1
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Accesses Microsoft Outlook profiles
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        • outlook_office_path
        • outlook_win_path
        PID:2264
        • C:\Windows\system32\cmd.exe
          cmd.exe /c chcp >&2
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2060
          • C:\Windows\system32\chcp.com
            chcp
            5⤵
              PID:1532
          • C:\Windows\System32\Wbem\WMIC.exe
            WMIC /Node:localhost /Namespace:\\root\SecurityCenter2 Path AntiVirusProduct Get * /Format:List
            4⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1952
          • C:\Windows\system32\ipconfig.exe
            ipconfig /all
            4⤵
            • Gathers network information
            PID:1936
          • C:\Windows\system32\systeminfo.exe
            systeminfo
            4⤵
            • Gathers system information
            PID:340
          • C:\Windows\system32\net.exe
            net config workstation
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:820
            • C:\Windows\system32\net1.exe
              C:\Windows\system32\net1 config workstation
              5⤵
                PID:1340
            • C:\Windows\system32\nltest.exe
              nltest /domain_trusts
              4⤵
                PID:2592
              • C:\Windows\system32\nltest.exe
                nltest /domain_trusts /all_trusts
                4⤵
                  PID:808
                • C:\Windows\system32\net.exe
                  net view /all /domain
                  4⤵
                  • Discovers systems in the same network
                  PID:2328
                • C:\Windows\system32\net.exe
                  net view /all
                  4⤵
                  • Discovers systems in the same network
                  PID:2320
                • C:\Windows\system32\net.exe
                  net group "Domain Admins" /domain
                  4⤵
                  • Suspicious use of WriteProcessMemory
                  PID:3020
                  • C:\Windows\system32\net1.exe
                    C:\Windows\system32\net1 group "Domain Admins" /domain
                    5⤵
                      PID:1196

            Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  94308059B57B3142E455B38A6EB92015

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                  • Size 344B
                  • SHA256 6057db1519812fe102dcbc254717562d1f2431b8f5272a393bf6844a531767cd
                  • MD5 SHA1 SHA512

                  Cab7033.tmp

                  • Path C:\Users\Admin\AppData\Local\Temp\Cab7033.tmp
                  • Size 61KB
                  • SHA256 6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf
                  • MD5 SHA1 SHA512 SSDEEP

                  TarA0F2.tmp

                  • Path C:\Users\Admin\AppData\Local\Temp\TarA0F2.tmp
                  • Size 163KB
                  • SHA256 bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5
                  • MD5 SHA1 SHA512 SSDEEP

                  Osluacpb1.dll

                  • Path C:\Users\Admin\AppData\Roaming\Utdebd4\Admin\Osluacpb1.dll
                  • Size 583KB
                  • SHA256 5d5bc4f497406b59369901b9a79e1e9d1e0a690c0b2e803f4fbfcb391bcfeef1
                  • MD5 SHA1 SHA512 SSDEEP

                  sqlite64.dll

                  • Path \Users\Admin\AppData\Local\Temp\sqlite64.dll
                  • Size 1.8MB
                  • SHA256 fca6b7fe66ad9973f18f407e83b56dacd04197cbd35efc498a342d73d6a113e5
                  • MD5 SHA1 SHA512 SSDEEP

                  Osluacpb1.dll

                  • Path \Users\Admin\AppData\Roaming\Utdebd4\Admin\Osluacpb1.dll
                  • Size 583KB
                  • SHA256 5d5bc4f497406b59369901b9a79e1e9d1e0a690c0b2e803f4fbfcb391bcfeef1
                  • MD5 SHA1 SHA512 SSDEEP

                  Osluacpb1.dll

                  • Path \Users\Admin\AppData\Roaming\Utdebd4\Admin\Osluacpb1.dll
                  • Size 583KB
                  • SHA256 5d5bc4f497406b59369901b9a79e1e9d1e0a690c0b2e803f4fbfcb391bcfeef1
                  • MD5 SHA1 SHA512 SSDEEP

                  Osluacpb1.dll

                  • Path \Users\Admin\AppData\Roaming\Utdebd4\Admin\Osluacpb1.dll
                  • Size 583KB
                  • SHA256 5d5bc4f497406b59369901b9a79e1e9d1e0a690c0b2e803f4fbfcb391bcfeef1
                  • MD5 SHA1 SHA512 SSDEEP

                  Osluacpb1.dll

                  • Path \Users\Admin\AppData\Roaming\Utdebd4\Admin\Osluacpb1.dll
                  • Size 583KB
                  • SHA256 5d5bc4f497406b59369901b9a79e1e9d1e0a690c0b2e803f4fbfcb391bcfeef1
                  • MD5 SHA1 SHA512 SSDEEP

                  memory/2264-34-0x0000000000390000-0x00000000003DF000-memory.dmp

                  memory/2264-55-0x0000000001D30000-0x0000000001D7C000-memory.dmp

                  memory/2264-111-0x0000000001D30000-0x0000000001D7C000-memory.dmp

                  memory/2264-32-0x0000000001D30000-0x0000000001D7C000-memory.dmp

                  memory/2264-27-0x0000000001D30000-0x0000000001D7C000-memory.dmp

                  memory/2264-53-0x0000000001D30000-0x0000000001D7C000-memory.dmp

                  memory/2264-54-0x0000000001D30000-0x0000000001D7C000-memory.dmp

                  memory/2264-33-0x0000000001D30000-0x0000000001D7C000-memory.dmp

                  memory/2264-56-0x0000000001D30000-0x0000000001D7C000-memory.dmp

                  memory/2264-64-0x0000000001D30000-0x0000000001D7C000-memory.dmp

                  memory/2264-67-0x0000000001D30000-0x0000000001D7C000-memory.dmp

                  memory/2264-26-0x0000000000390000-0x00000000003DF000-memory.dmp

                  memory/2264-109-0x0000000001D30000-0x0000000001D7C000-memory.dmp

                  memory/2264-102-0x0000000001D30000-0x0000000001D7C000-memory.dmp

                  memory/2580-19-0x00000000001A0000-0x00000000001AD000-memory.dmp

                  memory/2580-1-0x00000000001A0000-0x00000000001AD000-memory.dmp