Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e5a8d61a176128e…

MALICIOUS

PDF

83.4 KB Created: 2021-03-02 19:06:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 93b76fec03ac584a1c7fa4c9f1a1dd66 SHA-1: 016c8ddee70d49a4e9030b950242b39c18b7b225 SHA-256: 5e5a8d61a176128e9b9bde9c7e13995f32d1e48a63fc794dfa8d36740da0a3dc
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, with one specifically pointing to 'fokemale.ru' and mentioning 'property tax statements', suggesting a phishing or credential harvesting attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded links are indicative of a malicious document designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://fokemale.ru/wix?keyword=carver+county+minnesota+property+tax+statements PDF link annotation
    • http://doctora.club/you_are_a_badass_at_making_money_master_the_mindset_of_wealth_summaryl3crm.pdfIn PDF document text
    • http://ebay-coupon.ru/best_photo_editing_app_online_freeef75h.pdfIn PDF document text
    • http://calipshatngaccs1.xyz/crime_and_puzzlement2nlif.pdfIn PDF document text
    • http://detonicufficiale.website/vuternv111.pdfIn PDF document text
    • http://shopeuro.pro/54844006164h3k1j.pdfIn PDF document text
    • http://fupemagis.mywebcommunity.org/how_to_setup_midi_keyboard_ableton.pdfIn PDF document text
    • http://prognoz-football.club/addicting_games_impossible_quiz_answersvftob.pdfIn PDF document text
    • http://vuwimoxit.mygamesonline.org/gold_price_live_candle_chart.pdfIn PDF document text
    • http://probnik1313.tech/41794293952z7jjc.pdfIn PDF document text
    • http://wdd13.ru/pawotapstx1.pdfIn PDF document text
    • http://vawadofofasip.getenjoyment.net/63061860323.pdfIn PDF document text
    • http://lebizifijafaxim.medianewsonline.com/58062727741.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://donijexufenu.onlinewebshop.net/kayla_itsines_ab_workout_cosmo.pdfIn PDF document text
    • http://fugewep.rf.gd/how_to_sort_sheets_in_excel_2010.pdfIn PDF document text
    • http://gajopule.myartsonline.com/20352917433.pdfIn PDF document text
    • http://pozidijapepore.atwebpages.com/76116962552.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000100b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100B6 5184 bytes
SHA-256: e15d6965d0e71ec8ab63578a1e85e8055c3490601f22d963d1c686367aacf92c
font_01_sfnt_off0001124e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1124E 14488 bytes
SHA-256: a863a028adb8e2e32459401095192b36499a60922a0cf284feb84300621702a4

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