Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7ea5f2d14f65eea…

MALICIOUS

PDF

66.8 KB Created: 2021-04-03 20:13:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: d79337452feed1c46c1626947828a11d SHA-1: a7b82733fbe3772446ffbb9dd44c6d1f5f126790 SHA-256: f7ea5f2d14f65eeacabf076262391d42ffb37491ad2c3df7b3c0f24bf28db55c
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8416

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://xezojetit.ru/award?keyword=customs+law+manual+2020+20+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4424645/normal_6029a79362709.pdfIn PDF document text
    • http://joxotowefi.iblogger.org/food_recall_plan_example.pdfIn PDF document text
    • https://wakebanimoxebej.weebly.com/uploads/1/3/1/3/131383753/5113528.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482023/normal_605829b5a8b73.pdfIn PDF document text
    • https://wevozunivutuk.weebly.com/uploads/1/3/1/4/131484467/8582485.pdfIn PDF document text
    • https://sonikegusu.weebly.com/uploads/1/3/3/9/133997348/tumofixexiwu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410678/normal_604308ad68016.pdfIn PDF document text
    • https://definifizuzum.weebly.com/uploads/1/3/4/7/134759181/5d06ffa7b7f5a.pdfIn PDF document text
    • https://kiwewogulexir.weebly.com/uploads/1/3/4/3/134307720/6830614.pdfIn PDF document text
    • https://zonujonuwug.weebly.com/uploads/1/3/4/3/134309714/bc9522ad1dfed.pdfIn PDF document text
    • https://madapupe.weebly.com/uploads/1/3/4/6/134667506/12f022e846e8456.pdfIn PDF document text
    • https://xemegejimeje.weebly.com/uploads/1/3/1/6/131636808/nozaza_nakerowidaz_gesomudodo.pdfIn PDF document text
    • http://libizusuro.iblogger.org/pasiwisazub.pdfIn PDF document text
    • http://fukoniw.22web.org/10488182696.pdfIn PDF document text
    • https://nasokeluvofof.weebly.com/uploads/1/3/1/4/131453401/6225381.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jazuzotapir.epizy.com/boxing_agility_ladder_drills.pdfIn PDF document text
    • http://befakugidutoj.rf.gd/chal_chaiya_chaiya_video_song_pagalworld.pdfIn PDF document text
    • http://medemamonolusav.rf.gd/xegat.pdfIn PDF document text
    • http://jijaxipejor.rf.gd/26753563116.pdfIn PDF document text
    • http://xamaruver.epizy.com/1478069438.pdfIn PDF document text
    • http://zofetabekuvodan.epizy.com/allegro_cadence.pdfIn PDF document text
    • http://tegazadolital.rf.gd/nedubosuged.pdfIn PDF document text
    • http://lefutakogojabi.rf.gd/addition_word_problems_grade_5.pdfIn PDF document text
    • http://gagelenobom.epizy.com/how_to_stop_ups_from_beeping.pdfIn PDF document text
    • http://kafokenenore.rf.gd/wipetojoseragofetifomaw.pdfIn PDF document text
    • http://xaposekesudonod.epizy.com/how_to_stop_trichotillomania_in_toddlers.pdfIn PDF document text
    • http://fawituwiluke.epizy.com/5700828999.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e2b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2B9 5360 bytes
SHA-256: 60b52db8158d1d5d2ffb0fd6fd73046125d4d4e5f1c96edaf19a6ea19876a247

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