Overview

overview

10

Static

static

8

1 Total Ne...1.xlsm

windows7_x64

10

1 Total Ne...1.xlsm

windows10_x64

10

Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    21-01-2021 12:07

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General

  • Target

    1 Total New Invoices-Thursday January 21 2021.xlsm

  • Size

    30KB

  • MD5

    a47b6adc87b8000c91a706d3c5ed540f

  • SHA1

    5337c9cd3d3813178bd5e7d1e1334ab973bdbb3f

  • SHA256

    fa8ed75cfc69a06cf1e809531f7371b5c75fd480339ae65568785b76387ceaa0

  • SHA512

    4c703218126a95120b28b5679739eca637700e0847878b83a844f494434f5a05bb3ca739cbe4b8fd45e1fff42d4aaeaa4588a01c4c3f307284c94b1a79eda172

Score
10/10
dridex10444botnetloader

Malware Config

Extracted

Language
xlm4.0
Source

Extracted

Family

dridex

Botnet

10444

C2

194.225.58.214:443

211.110.44.63:5353

69.164.207.140:3388

198.57.200.100:3786
rc4.plain
rc4.plain

Signatures

  • Dridex

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

    botnetdridex
  • Process spawned unexpected child process 2 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Dridex Loader 2 IoCs

    Detects Dridex both x86 and x64 loader in memory.

    botnetloader
  • Loads dropped DLL 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
    adwarespyware
  • Modifies registry class 280 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\1 Total New Invoices-Thursday January 21 2021.xlsm"
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1832
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" -s C:\Users\Admin\AppData\Local\Temp\sjrxhlfb.dll
      2⤵
      • Process spawned unexpected child process
      PID:524
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" -s C:\Users\Admin\AppData\Local\Temp\sjrxhlfb.dll
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      PID:432

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\sjrxhlfb.dll
    MD5

    a01d5a105e5f7f87d6219289021d6fcd

    SHA1

    2ca71d7ba72b5ad78f7497c94e898bfc66f1788d

    SHA256

    b1db3e9ff85ecb2f697ac7c77e2e1e3617320ff9c16567dce4f5ddc9610d3a8c

    SHA512

    8f77d4b6a083b99ea50bae16fbd7d53cf619199e07b1b9488ce26379615d7a1fbf6a4e0b4b05600d4a1ee4338b5ccb8d5e128dd166440a606ffa3ff4dc129da5

    Download Submit
  • \Users\Admin\AppData\Local\Temp\sjrxhlfb.dll
    MD5

    a01d5a105e5f7f87d6219289021d6fcd

    SHA1

    2ca71d7ba72b5ad78f7497c94e898bfc66f1788d

    SHA256

    b1db3e9ff85ecb2f697ac7c77e2e1e3617320ff9c16567dce4f5ddc9610d3a8c

    SHA512

    8f77d4b6a083b99ea50bae16fbd7d53cf619199e07b1b9488ce26379615d7a1fbf6a4e0b4b05600d4a1ee4338b5ccb8d5e128dd166440a606ffa3ff4dc129da5

    Download Submit
  • memory/432-8-0x0000000000000000-mapping.dmp
    Download
  • memory/432-12-0x000000006C540000-0x000000006C57D000-memory.dmp
    Filesize

    244KB

    Download
  • memory/432-13-0x000000006C540000-0x000000006C57D000-memory.dmp
    Filesize

    244KB

    Download
  • memory/432-14-0x00000000001F0000-0x00000000001F1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/524-5-0x0000000000000000-mapping.dmp
    Download
  • memory/524-6-0x0000000076191000-0x0000000076193000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1164-7-0x000007FEF7F80000-0x000007FEF81FA000-memory.dmp
    Filesize

    2.5MB

    Download
  • memory/1832-2-0x000000002F5C1000-0x000000002F5C4000-memory.dmp
    Filesize

    12KB

    Download
  • memory/1832-3-0x0000000071811000-0x0000000071813000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1832-4-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

    Download