Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f9e298ef11b42aa…

MALICIOUS

PDF

91.1 KB Created: 2021-03-02 20:53:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 889afb6f2f8cbe14ab6bb69a1ecddc1f SHA-1: f825c759264dd5b88d7c1009ff6cd3ac6bac835c SHA-256: 7f9e298ef11b42aa02227f7cbd150d9a4fbd3e90af27f9eed1810b9f30989a51
156 Risk Score

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, exhibiting characteristics of a link farm designed to redirect users to external sites. The PDF contains numerous embedded URIs, including one pointing to 'lozipotod.ru', which is likely part of a phishing or malware distribution scheme. The presence of multiple external links suggests an attempt to drive traffic to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://lozipotod.ru/wb?keyword=at%20the%20mountains%20of%20madness%20ending%20explained PDF link annotation
    • https://zarimuxeve.weebly.com/uploads/1/3/4/8/134897304/dubopemafomi_lidokaninu_gefed_gitikumugif.pdfIn PDF document text
    • https://tetunabirudav.weebly.com/uploads/1/3/0/8/130874278/fekelolupi.pdfIn PDF document text
    • https://wivujugojuz.weebly.com/uploads/1/3/4/8/134883460/bavoluto-sigodibud-pirexu-lozun.pdfIn PDF document text
    • https://cdn.sqhk.co/kominepoli/hthddig/fill_color_row_excel_vba.pdfIn PDF document text
    • https://nusevusigafub.weebly.com/uploads/1/3/1/3/131398220/7935029.pdfIn PDF document text
    • https://sodapovi.weebly.com/uploads/1/3/4/4/134494820/1804316.pdfIn PDF document text
    • http://unosital.space/navy_seal_9_week_workout4dpj3.pdfIn PDF document text
    • https://rinotawobuv.weebly.com/uploads/1/3/4/7/134768279/43340b19c.pdfIn PDF document text
    • https://cdn.sqhk.co/tesosunimew/aihmxja/sajuzidifotuf.pdfIn PDF document text
    • https://wagidojinubem.weebly.com/uploads/1/3/1/4/131438567/4758086.pdfIn PDF document text
    • http://tersq.space/repurexosivubutanasotakizhmeh.pdfIn PDF document text
    • http://bestgirl69.com/the_stranger_by_albert_camus_quotesv8cjq.pdfIn PDF document text
    • https://cdn.sqhk.co/gafisasiwu/YMhcNhg/happy_birthday_gift.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/muxegeza/nerexomafovidupubekub.pdfIn PDF document text
    • https://s3.amazonaws.com/rizijubovapuk/gobana.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/zetebosivuxenanuroxulixa.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/some_important_full_forms_of_computer.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_off000124be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124BE 5416 bytes
SHA-256: 1bc8fe8cdc3d7b67ac5fff581044c31d03c0ca9530355fa368a5432006833b9a
font_01_sfnt_off00013710.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13710 12584 bytes
SHA-256: 5ec631c299277a70871c8af6b0d9fb9ae48be7f63188b5e4987b530c1e692abb

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