Malicious PDF — malware analysis report

Static analysis result for SHA-256 d02352e80743b9fd…

MALICIOUS

PDF

122.2 KB Created: 2021-05-16 07:54:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: a980cf51b8191c2a6fe58be39aace5ca SHA-1: f3d718b9d8c0c819e2a069ced14543b8318a97cc SHA-256: d02352e80743b9fd42c4c09eece1c3e7cb4683e22f266d9c92a1b17a9a71a545
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 0.9136

Heuristics 4

  • 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
  • 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://gimoguvi.ru/strik?utm_term=panchatantra+stories+in+telugu+books PDF link annotation
    • http://pubguckazan.com/112891854759fn32.pdfIn PDF document text
    • https://cdn.sqhk.co/loxosefivipo/lgfGifL/75683620798.pdfIn PDF document text
    • https://cdn.sqhk.co/naxusepimosa/jFghAGJ/10661508004.pdfIn PDF document text
    • http://golosa-spasibo.ru/snare_drum_solo_music9tv0o.pdfIn PDF document text
    • https://cdn.sqhk.co/puruwedisuma/ijohhu4/93764507173.pdfIn PDF document text
    • http://design-kvartira.info/asce_7-_10bf542.pdfIn PDF document text
    • http://indonesia2health.online/most_common_french_phrases_for_travelersvdu95.pdfIn PDF document text
    • http://prizinsta365.online/practical_machine_learning_with_python_githubruyf3.pdfIn PDF document text
    • https://cdn.sqhk.co/matajikiwov/agvUheo/amazon_echo_dot_with_clock_argos.pdfIn PDF document text
    • https://cdn.sqhk.co/nebafori/ieMOjeY/spongebob_squarepants_movie_sponge_on_the_run_cast.pdfIn PDF document text
    • http://sajezexutumesu.iblogger.org/wakezipewi.pdfIn PDF document text
    • http://winsbig.space/marvel_strike_force_fear_the_darknesckxef.pdfIn PDF document text
    • http://kefets.xyz/govuwajukowugejiwatefi1akgb.pdfIn PDF document text
    • http://hookup681.site/90245821803hj3w5.pdfIn PDF document text
    • http://moitender.org/19118635566jg5bx.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/devi_bhajan_punjabi_song.pdfIn PDF document text
    • http://latowetutut.epizy.com/paziwefeb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd00de4e-3521-470e-95b2-c87b89e96d8a/how_to_open_kenmore_elite_washer_door.pdfIn PDF document text
    • http://xesidif.epizy.com/44725881448.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64b5109a-8229-40dc-8b2e-b7bc910d84b0/tetin.pdfIn PDF document text
    • http://falufobi.epizy.com/59443112314.pdfIn PDF document text
    • https://s3.amazonaws.com/sifawekujiki/vugepobajamojivonalig.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03699c03-3a0a-4781-be99-447c3dc6ee09/cisco_network_security_fundamentals.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5389c330-bf67-4444-afe1-4159a2b7f29d/photography_book_printing_uk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/63bf756e-5eaf-481a-a3da-d78492f8c9d0/columbia_par_car_parts_near_me.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_off0001b4f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B4F4 5264 bytes
SHA-256: b9f633f6116d5d0c5dc43df279c9ceaa8e0b16f278019fa42c808d8a1e5d464f

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