Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d5b57729742a523…

MALICIOUS

PDF

38.9 KB Created: 2020-08-03 11:12:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 91fd7c0a8fc9c2190b5d55ecd4361808 SHA-1: 0e0e988e8d080b87f1bdd8a197ba6e8e146445fc SHA-256: 7d5b57729742a523bef18c0503161e49452ac7ba734388601216738f8ba29634
194 Risk Score

Malware Insights

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

This PDF file exhibits characteristics of a phishing lure, specifically using a link farm and redirector to disguise malicious links. The embedded document body contains text related to 'Generac generator manual pdf' and includes a primary malicious URL, 'https://ttraff.cc/pify?keyword=generac+generator+manual+pdf', which is flagged as a known malicious redirector. The presence of numerous other PDF links suggests an attempt to manipulate search engine results for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.cc/pify?keyword=generac+generator+manual+pdf In PDF document text
    • http://files.mountainmovingjourney.com/uploads/1/3/2/7/132741556/ranodejonusorid.pdfIn PDF document text
    • http://files.ilonayoga.com/uploads/1/3/0/7/130776131/befapituwado.pdfIn PDF document text
    • http://files.vztango.com/uploads/1/3/2/7/132712333/39ffc880cfc.pdfIn PDF document text
    • http://files.nordicflippedlearning.org/uploads/1/3/0/7/130739415/6485463.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/1/0438/3614/5814/files/niwajonibaboxelobakovom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1044/8795/files/husqvarna_rz5424_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sasukeseduvemuledup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9504/0924/files/nijuvit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2699/7663/files/79637608978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9055/6568/files/88073048581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4712/4135/files/butujevubokidi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6845/6086/files/80955233557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3676/9437/files/mount_and_blade_warband_viking_conquest_cheats.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9013/1609/files/bee_venom_collector_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9875/0619/files/bisuluvejafavitaruvibules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0582/1599/files/47790394223.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_off000050a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50A0 5328 bytes
SHA-256: 2898366c26b1e9bf681b238314a08b420c1d79772a45dec5aabe577256d57b50
font_01_sfnt_off000062b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B1 14312 bytes
SHA-256: fdea5f2b0f230773bce91c0053a1e8044bae5b6e777671a14fac6bd45168161e