Overview

overview

10

Static

static

Invoice_Pa...2.xlsm

windows7_x64

10

Invoice_Pa...2.xlsm

windows10_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    100s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    23-11-2020 14:55

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General

  • Target

    Invoice_Payment Form_163142.xlsm

  • Size

    51KB

  • MD5

    583fcbda6de9764fc9d5d2c21856a3ce

  • SHA1

    53b2b1303a2dd6c1f7ad7a5ea9de2838e79380d9

  • SHA256

    5d4fdf219371a9d83d31b7e21cd1103b309f124e36dc1a4790e052efe760990f

  • SHA512

    93f37f35fcc4e3d7b3540c8b01b00303d087984c87087529239ccf9eee20d5b32c3c13c6f93b8a912b29b2921dbda70b2f2d1b0445efd01bb6cb804f6f9f53b1

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\Invoice_Payment Form_163142.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:1668
    • C:\Users\Admin\IjkPol\lqhakshw.exe
      "C:\Users\Admin\IjkPol\lqhakshw.exe" 0
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:952

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

2
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\IjkPol\lqhakshw.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\IjkPol\lqhakshw.exe
    MD5

    c966ec47c0480c3a6be2a1231a83c8a1

    SHA1

    b15e12449be1ea174dfd224935fa6d78e1c58f5a

    SHA256

    4b1f2c18b149fd0e878c362ffba50bb553d7bea93a795b33e398d032dc0b7663

    SHA512

    35b3b6e9aebaa447f2cbf6a9fb7d24985475870285c6ea1bde7b8ccfd3ea956761691e44103d391ec89d8af6f43d73627a09c1c36b19f24caeab1453edd69f5e

    Download Submit
  • memory/952-4-0x0000000000000000-mapping.dmp
    Download
  • memory/1312-7-0x0000000002A20000-0x0000000002A36000-memory.dmp
    Filesize

    88KB

    Download
  • memory/1668-0-0x00000000052E3000-0x00000000052E5000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1668-1-0x00000000052F3000-0x00000000052F4000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1708-2-0x000007FEF6780000-0x000007FEF69FA000-memory.dmp
    Filesize

    2.5MB

    Download