Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1320151bd15b7dd…

MALICIOUS

PDF

79.3 KB Created: 2021-03-20 20:56:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 8969d49c83dc982583d5029c6fcbc8e4 SHA-1: 9feb4bbca7067900b60d4925799dc21fb37a9d53 SHA-256: f1320151bd15b7ddc41fd7f8b8372e162c462b116969a24ef9227e0d97642360
126 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9998

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://leonvi.ru/wix?keyword=tupac+better+dayz+album+download PDF link annotation
    • https://cdn.sqhk.co/tigufarejeti/UVbBiaf/vintage_snake_belt_buckle.pdfIn PDF document text
    • https://cdn.sqhk.co/fiseguvugele/ighRgfp/watch_hd_free_movies_online_now.pdfIn PDF document text
    • https://cdn.sqhk.co/numiwufeguv/gcPxhtb/hobby_lobby_store_hours_today.pdfIn PDF document text
    • http://gilutij.iblogger.org/free_excel_spreadsheet_for_rental_property.pdfIn PDF document text
    • https://cdn.sqhk.co/davusegeb/a70AY0X/80045415712.pdfIn PDF document text
    • http://logefekur.22web.org/bomag_bt_65_bedienungsanleitung.pdfIn PDF document text
    • http://punalavivex.22web.org/sizagidibegega.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/aab17c64-09e8-4e5c-9780-8277481c7170/84929358123.pdfIn PDF document text
    • https://s3.amazonaws.com/buxoparadazegu/91822899840.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53a62d6f-cca7-493e-8030-ffc4a6ebe9d6/bofilotebux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/604d1b68-3033-4ddb-84a6-b4456d18dd88/how_do_i_pair_my_soundpeats.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4bee40d-ea30-4d34-98e0-4177bab721e2/what_is_the_best_embroidery_hoop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a63829d7-b547-45a7-80ca-b07254533c84/polygon_has_9_sides_what_is_its_interior_angle.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f90645c7-3c0a-42a3-b1d8-426db1c2b7f7/strongs_concordance_online_222.pdfIn PDF document text
    • http://dopugidov.rf.gd/groin_pain_exercises.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7a332de-27e2-46df-9438-025c1eca90cc/duromax_hybrid_dual_fuel_xp4400eh_4_400-watt_portable_generator.pdfIn PDF document text
    • http://xalatirasu.rf.gd/measure_theory_and_integration.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/79667695577.pdfIn PDF document text
    • http://jiporiri.rf.gd/75623092043.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86ebb3f1-231a-414d-bb07-954d39f76b83/92490951927.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_off0000f4c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4C9 5372 bytes
SHA-256: 6304515e3afdb69ca0fb9b9e4b4c2cb6d32f3ce2dca68ce2f44b2525afd2305f
font_01_sfnt_off0001070d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1070D 11888 bytes
SHA-256: 66521b0fd08906892c33ff53a9a44fae54769f34757871bfc5c595137ee6b310

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