Overview

overview

10

Static

static

Inv_26726_06464.xlsm

windows7_x64

10

Inv_26726_06464.xlsm

windows10_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    105s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    23-11-2020 13:18

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General

  • Target

    Inv_26726_06464.xlsm

  • Size

    54KB

  • MD5

    b403bcb2e1902f9851753976c5e6c3a7

  • SHA1

    845932e0c3c0b743f5fb5eb56d3e056706ab91d6

  • SHA256

    7ce03706ca499ae052de8bdaf9181f4f059cae19fd22fd52a902e2fcdb27f32e

  • SHA512

    30367dc639491a990ea5c7e9ec2adbbb19f305fe6157c35a0b4a0f974cb8151fabdf3ff3f1a99603f73191fbe4676cf9f29e132558aac881a776ba3d796a7436

Score
10/10
smokeloaderbackdoortrojan

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://penodux.com/xsmkld/index.php

http://tommusikirtyur.com/xsmkld/index.php

http://ploaernysannyer.com/xsmkld/index.php

http://dersmasfannyer.com/xsmkld/index.php

http://derdsgdannyer.com/xsmkld/index.php
rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

    trojanbackdoorsmokeloader
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
    adwarespyware
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 4 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\Inv_26726_06464.xlsm
    1⤵
    • Loads dropped DLL
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:288
    • C:\Users\Admin\sledPro\kqsfk.exe
      "C:\Users\Admin\sledPro\kqsfk.exe" 0
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:848

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\sledPro\kqsfk.exe
    MD5

    c966ec47c0480c3a6be2a1231a83c8a1

    SHA1

    b15e12449be1ea174dfd224935fa6d78e1c58f5a

    SHA256

    4b1f2c18b149fd0e878c362ffba50bb553d7bea93a795b33e398d032dc0b7663

    SHA512

    35b3b6e9aebaa447f2cbf6a9fb7d24985475870285c6ea1bde7b8ccfd3ea956761691e44103d391ec89d8af6f43d73627a09c1c36b19f24caeab1453edd69f5e

    Download Submit

  • \Users\Admin\AppData\Local\Temp\45E1.tmp
    MD5

    d124f55b9393c976963407dff51ffa79

    SHA1

    2c7bbedd79791bfb866898c85b504186db610b5d

    SHA256

    ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

    SHA512

    278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

    Download Submit

  • \Users\Admin\sledPro\kqsfk.exe
    MD5

    c966ec47c0480c3a6be2a1231a83c8a1

    SHA1

    b15e12449be1ea174dfd224935fa6d78e1c58f5a

    SHA256

    4b1f2c18b149fd0e878c362ffba50bb553d7bea93a795b33e398d032dc0b7663

    SHA512

    35b3b6e9aebaa447f2cbf6a9fb7d24985475870285c6ea1bde7b8ccfd3ea956761691e44103d391ec89d8af6f43d73627a09c1c36b19f24caeab1453edd69f5e

    Download Submit

  • memory/288-0-0x00000000051F4000-0x00000000051F5000-memory.dmp

    Filesize

    4KB

    Download

  • memory/848-3-0x0000000000000000-mapping.dmp

    Download

  • memory/1264-6-0x0000000002920000-0x0000000002936000-memory.dmp

    Filesize

    88KB

    Download

  • memory/1964-1-0x000007FEF7510000-0x000007FEF778A000-memory.dmp

    Filesize

    2.5MB

    Download