Overview

overview

10

Static

static

3

a81c99d352...7b.dll

windows7-x64

10

a81c99d352...7b.dll

windows10-2004-x64

10

Analysis

  • max time kernel
    140s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-01-2025 06:11

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General

  • Target

    a81c99d3529a32af2bdd97c4c24659af3e16c01a55078683fb578b13affb877b.dll

  • Size

    648KB

  • MD5

    d3d28670bf264cb9fdbbba97fe3aa170

  • SHA1

    645444307957053737dc887e17450cf262b61993

  • SHA256

    a81c99d3529a32af2bdd97c4c24659af3e16c01a55078683fb578b13affb877b

  • SHA512

    940e6a3a79ec6842ed7491e816cceda79ef85c256cef7cca8ddecf1431921d3ae35ee3da66ea8f5f12cf1151fccb5b7c9b5e62c32c1c649a0056e253af9e7886

  • SSDEEP

    6144:2g12AzW5HsiScvtNybiR8g0ISTFCRVe9/JE+++sKS1JGWWsca65eu9K2zqc4CWAZ:282AK5HOEksJ1YW7DwzqyQ

Score
10/10
dridexbotnetdiscoveryevasionloaderpersistencetrojan

Malware Config

Signatures

  • Dridex

    Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.

    botnetdridex
  • Dridex family
    dridex
  • Dridex Loader 'dmod' strings 2 IoCs

    Detects 'dmod' strings in Dridex loader.

    botnetloader
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 3 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Enumerates connected drives 3 TTPs 6 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Checks SCSI registry key(s) 3 TTPs 64 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 48 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 3 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.

    persistence

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\a81c99d3529a32af2bdd97c4c24659af3e16c01a55078683fb578b13affb877b.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3312
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\a81c99d3529a32af2bdd97c4c24659af3e16c01a55078683fb578b13affb877b.dll,#1
      2⤵
      • Checks whether UAC is enabled
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4612
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Boot or Logon Autostart Execution: Active Setup
    • Enumerates connected drives
    • Checks SCSI registry key(s)
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:3728
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:2488
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Boot or Logon Autostart Execution: Active Setup
    • Enumerates connected drives
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2640
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:1520
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Boot or Logon Autostart Execution: Active Setup
    • Enumerates connected drives
    • Checks SCSI registry key(s)
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:4996
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:3840
  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
    1⤵
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:4820
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
      PID:3900
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
        PID:4836

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_CBDCCBFE4F7A916411C1E69BDD97BB04
        Filesize

        471B

        MD5

        e71669bd6a9e74a156ac933b670362c4

        SHA1

        e9de4d9084739759348ab9da8f7d415f437571a2

        SHA256

        1688ce51440d686498eb53bdd725952c998ad20ed53b646434a835224381708a

        SHA512

        003dc287c29c988a7d75aca7e822d6067992da25391687e6caf08c259e0bd3025055dd0713e810c425775435ba92a5dd6dc44e4cd13c51e975432ca010356673

        Download Submit

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_CBDCCBFE4F7A916411C1E69BDD97BB04
        Filesize

        412B

        MD5

        4227c03906171beb3ded2b298387bef9

        SHA1

        9ef3956cc38f049e79c47880fd7b40b3e90e687f

        SHA256

        2d86c3170322bb2020c9187fddae2f15099ae37029ebaa19e3cf51e28f4db0dd

        SHA512

        73e3b5cdea0026f43644a5a8ad93986610a87dd151d04ea02a48f7add99dadbc97e66c5ea97cc2f2d557fee6bf9d7965fa4b43865b930f143fa48cf66c727d4a

        Download Submit

      • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\AppIconCache\100\Microsoft_Office_SETLANG_EXE_15
        Filesize

        36KB

        MD5

        0e2a09c8b94747fa78ec836b5711c0c0

        SHA1

        92495421ad887f27f53784c470884802797025ad

        SHA256

        0c1cdbbf6d974764aad46477863059eaec7b1717a7d26b025f0f8fe24338bb36

        SHA512

        61530a33a6109467962ba51371821ea55bb36cd2abc0e7a15f270abf62340e9166e66a1b10f4de9a306b368820802c4adb9653b9a5acd6f1e825e60128fd2409

        Download Submit

      • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\AppIconCache\100\Microsoft_Windows_Explorer
        Filesize

        36KB

        MD5

        ab0262f72142aab53d5402e6d0cb5d24

        SHA1

        eaf95bb31ae1d4c0010f50e789bdc8b8e3116116

        SHA256

        20a108577209b2499cfdba77645477dd0d9771a77d42a53c6315156761efcfbb

        SHA512

        bf9580f3e5d1102cf758503e18a2cf98c799c4a252eedf9344f7c5626da3a1cf141353f01601a3b549234cc3f2978ad31f928068395b56f9f0885c07dbe81da1

        Download Submit

      • memory/4612-0-0x00000000007F0000-0x00000000007F6000-memory.dmp

        Filesize

        24KB

        Download

      • memory/4612-1-0x0000000074D10000-0x0000000074DB2000-memory.dmp

        Filesize

        648KB

        Download

      • memory/4612-11-0x00000000007F0000-0x00000000007F6000-memory.dmp

        Filesize

        24KB

        Download

      • memory/4612-10-0x0000000074D10000-0x0000000074DB2000-memory.dmp

        Filesize

        648KB

        Download

      • memory/4820-28-0x00000130D5B90000-0x00000130D5BB0000-memory.dmp

        Filesize

        128KB

        Download

      • memory/4820-16-0x00000130D4BB0000-0x00000130D4CB0000-memory.dmp

        Filesize

        1024KB

        Download

      • memory/4820-51-0x00000130D5FA0000-0x00000130D5FC0000-memory.dmp

        Filesize

        128KB

        Download

      • memory/4820-20-0x00000130D5BD0000-0x00000130D5BF0000-memory.dmp

        Filesize

        128KB

        Download

      • memory/4996-13-0x0000000002EC0000-0x0000000002EC1000-memory.dmp

        Filesize

        4KB

        Download