Malicious PDF — malware analysis report

Static analysis result for SHA-256 d503c2f1b70c2832…

MALICIOUS

PDF

47.9 KB Created: 2020-10-11 23:54:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: fc047c0e97998e7ae515a5734b505e22 SHA-1: ed942d71ee00fc190591565bd662d8de181f51d5 SHA-256: d503c2f1b70c283285a5ea6f89669e2de87c577fe052105f4e0d8c2927792e85
154 Risk Score

Malware Insights

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

This PDF document contains numerous embedded links, masquerading as search results for a '2002 murray riding lawn mower manual'. One of these links, 'https://ttraff.link/pify?keyword=2002+murray+riding+lawn+mower+manual', points to known malicious redirector infrastructure. The document's structure and extensive link farm suggest an attempt to drive traffic to potentially malicious websites, likely for phishing or malware distribution. No scripts were extracted, but the PDF's nature and the malicious link indicate a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.link/pify?keyword=2002+murray+riding+lawn+mower+manual In PDF document text
    • https://site-1039804.mozfiles.com/files/1039804/zujibibixenemoregemamipo.pdfIn PDF document text
    • https://site-1036681.mozfiles.com/files/1036681/29049550738.pdfIn PDF document text
    • https://site-1037132.mozfiles.com/files/1037132/53292797732.pdfIn PDF document text
    • https://site-1039902.mozfiles.com/files/1039902/24697627624.pdfIn PDF document text
    • https://site-1040165.mozfiles.com/files/1040165/68414274508.pdfIn PDF document text
    • http://migixuza.teih.org/uploads/1/3/1/4/131407514/fumoweb-zetomesi-xakitozoxamu.pdfIn PDF document text
    • http://files.godwinacupuncture.com/uploads/1/3/1/4/131409090/9224530.pdfIn PDF document text
    • http://jasobige.ryangardnerjewelry.com/uploads/1/3/1/3/131379409/gevixodilokuma.pdfIn PDF document text
    • http://musipudej.kzoorca.org/uploads/1/3/1/4/131453068/4dba8e69.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2094/9403/files/dufomopizovikav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/6247/9016/files/54878827117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/8254/6845/files/87098951944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/1041/2703/files/www_officedepotservices_com.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5941/1094/files/tojifipinejuzetexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9087/9676/files/dresden_files_peace_talks_epub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3526/3130/files/augustus_of_primaporta_date.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/9805/8141/files/fejoxuweropovapajeta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/2091/4335/files/video_de_chiste_de_pepito_en_la_escuela.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_off00007dbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DBF 5340 bytes
SHA-256: 9fd937c2a2deb186df5967f85b0886065759804eefd49307b759bbbf04771552
font_01_sfnt_off00008fdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FDD 10184 bytes
SHA-256: 10a6edb60f4980e3ee5f960e9abfa3f528a475b3f4df3f4ccf36bab6fbe6eb82

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