Malicious PDF — malware analysis report

Static analysis result for SHA-256 13fca74ccc9f3484…

MALICIOUS

PDF

73.9 KB Created: 2021-04-23 14:11:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: dd2e5a694f665bb33802033bb384e2f6 SHA-1: b2f6fbad1b6e0244e47d673ed7799a6006aefe3e SHA-256: 13fca74ccc9f3484b568bf55b502e3f4d62b9be09c0836716e930b1edea9c79e
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan payload. It contains multiple embedded URLs, with a primary suspicious URL pointing to 'midufefew.ru'. The document body, though partially obfuscated, suggests a lure related to 'F1 2020 ps4 date de sortie', likely to entice users to click the malicious link. No scripts were extracted, but the PDF structure and URL heuristics strongly suggest a phishing attempt.

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://midufefew.ru/strik?utm_term=f1+2020+ps4+date+de+sortie PDF link annotation
    • http://arendaavto.taxi/156725994179bnao.pdfIn PDF document text
    • https://cdn.sqhk.co/gofejenizew/ptccjg5/free_heart_images_to_print.pdfIn PDF document text
    • https://cdn.sqhk.co/muzipajat/mhfgjha/are_ice_sheets_growing_or_shrinking.pdfIn PDF document text
    • https://cdn.sqhk.co/pigalixow/aFmgCgh/pizza_chef_new_london.pdfIn PDF document text
    • https://cdn.sqhk.co/nazutupim/igQ9Cih/65387205928.pdfIn PDF document text
    • https://cdn.sqhk.co/tinolefowi/da8phe9/86840382276.pdfIn PDF document text
    • https://cdn.sqhk.co/xobabowiwa/HPghd3Z/make_a_list_in_one_excel_cell.pdfIn PDF document text
    • http://esclub.pro/logitech_z323_speaker_system_manuala8ucr.pdfIn PDF document text
    • http://creditstar-kabinet.com/how_to_anoint_oil_ldsp79bs.pdfIn PDF document text
    • https://cdn.sqhk.co/laxegipo/Ygc9753/16478939204.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/50cefb25-eeee-482c-b526-332db0352e75/digital_economy_act_2010.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/239df3b2-1baf-4881-8ff3-f498a0d58ab0/xujukujevomo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53fb86cb-9b1c-4bd0-89c9-affcb1021f87/24099850254.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cfc3b696-4717-424c-ad3f-a2c1c9cd0f66/farabivojepizibe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25a24524-6498-4703-b14d-e85964f4eacd/bufevadeverokupetimoko.pdfIn PDF document text
    • http://nasewuji.epizy.com/gewasoguvinonafaloze.pdfIn PDF document text
    • http://zizaxutezojewif.rf.gd/40552955187.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8dd4c117-21fe-4111-b924-f4186a12554e/canon_powershot_sd1200_is_charger.pdfIn PDF document text
    • http://konogorubur.epizy.com/rectifier_circuit_design.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_off0000e039.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE039 5288 bytes
SHA-256: 0873e83b25959f054d1e8fe53487bc8a2b07d2304c38dc58798dc69b489051cb
font_01_sfnt_off0000f24c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF24C 11928 bytes
SHA-256: 2f9dae8ebec9e78a22fe6c5a8fbffb467fa17093795647be6dcc31914a84b735

Open this report in the interactive analyzer, or submit your own file for analysis.