Malicious PDF — malware analysis report

Static analysis result for SHA-256 be000d9d3b49c1d6…

MALICIOUS

PDF

75.5 KB Created: 2021-03-14 02:18:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 09ad7380f0b49ce99299a8e29566ecbf SHA-1: 95f8390228eb155a7c0df2aff975243f4a32fee5 SHA-256: be000d9d3b49c1d6d2546ba3de3a7cdcc0f4a8a7deb000124f258ad883adda7f
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

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 0.9993

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://resalured.ru/wix?keyword=kik+apk+file PDF link annotation
    • https://cdn.sqhk.co/rijunawep/hfW0hfi/zombie_smasher_hack_download.pdfIn PDF document text
    • https://bukajovogasis.weebly.com/uploads/1/3/4/3/134340533/58ff1ebb0ba.pdfIn PDF document text
    • http://xidoxuj.22web.org/daxafeme.pdfIn PDF document text
    • https://bopisigo.weebly.com/uploads/1/3/1/4/131453919/6349999.pdfIn PDF document text
    • http://bupiwasun.iblogger.org/31641386434.pdfIn PDF document text
    • https://cdn.sqhk.co/suxepemup/jgigheg/world_history_trivia_questions_and_answers_printable.pdfIn PDF document text
    • https://cdn.sqhk.co/jazumagefo/gdjjtie/coupons_for_amazon_books_codes.pdfIn PDF document text
    • https://cdn.sqhk.co/dagozuwemep/Vjdiajj/gmail_login_new_account.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nonavijewiw.epizy.com/51429180454.pdfIn PDF document text
    • https://s3.amazonaws.com/marimejerebo/barajulisozinupubala.pdfIn PDF document text
    • http://kosener.epizy.com/scrying_sheets_mkm.pdfIn PDF document text
    • http://xumerapugegivo.epizy.com/rrb_je_mechanical_old_papers.pdfIn PDF document text
    • https://a0d2adcf-75bd-42a9-a42a-c23e1c6e9e1a.filesusr.com/ugd/85c99c_7428168d697041b3bb1e83ddf2305a5d.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xurixado/al_quran_juz_30_mp3_free_download.pdfIn PDF document text
    • https://ce3a146a-d504-4efb-981c-4593fb85d965.filesusr.com/ugd/5b5da7_848be7daacf94c7ea9a0feaef37888f6.pdf?index=trueIn PDF document text
    • https://217ba8a6-026c-4a9e-b1ce-2eadff0a4a08.filesusr.com/ugd/3d7af5_5eca22279ddf4aafb2975d20cfd9459c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jirebonudur/tubunoxezuvowukaxiju.pdfIn PDF document text
    • https://bf6af823-cb0d-4ee8-9d5b-4f0b1de5ed24.filesusr.com/ugd/9eb187_a68e434a4c30444a9f7d8c7f7c0fdbef.pdf?index=trueIn PDF document text
    • http://fetevatakipip.epizy.com/difazotogoj.pdfIn PDF document text
    • http://kiwixapuwijoj.rf.gd/difference_between_saturated_and_unsaturated_fats.pdfIn PDF document text
    • http://jevoneloz.epizy.com/worksheet_isotope_problems_answer_key.pdfIn PDF document text
    • http://zuxebalu.rf.gd/what_is_the_formula_for_lateral_surface_area_of_a_cylinder.pdfIn PDF document text
    • https://s3.amazonaws.com/bufipevuril/76260082150.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB60 4652 bytes
SHA-256: dee7dc361e14fcc7e5ec01ebe8b45f498f866a3ff4bffbfc7927cda34029b32c
font_01_sfnt_off0000fb4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB4D 10608 bytes
SHA-256: 2806530e8141baba9268c1c226cf9d6199b8ec526b73772f57900892c6509021

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