Malicious PDF — malware analysis report

Static analysis result for SHA-256 692bc28ff2fac5ee…

MALICIOUS

PDF

52.4 KB Created: 2020-08-05 05:12:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c1d4ac9c83befcc601ec7d2a00e727e6 SHA-1: 25c4e13e7b5e7cd576eced961680e2bc351ddab4 SHA-256: 692bc28ff2fac5ee57d4a4c0bd236ba839bc3253535f65f83b68470a1f183f59
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or phishing campaign. The primary malicious link, 'https://ttraff.com/pify?keyword=pet+listening+answer+sheet+pdf', is identified as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links indicate an attempt to redirect the user to malicious content, likely for credential harvesting or malware distribution.

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.com/pify?keyword=pet+listening+answer+sheet+pdf In PDF document text
    • http://files.derwoodmarket.org/uploads/1/3/1/3/131380625/243071.pdfIn PDF document text
    • http://files.extremeluxurygetaways.com/uploads/1/3/1/3/131379040/gasixada.pdfIn PDF document text
    • http://desojave.strikesforkidsseattle.com/uploads/1/3/1/0/131070786/rogareputofozezela.pdfIn PDF document text
    • http://files.1201third.com/uploads/1/3/1/4/131483154/kapudomelotuj-nasumalu-zusij-nuludavavedev.pdfIn PDF document text
    • http://files.carriedolan.com/uploads/1/3/0/7/130776864/9017134.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/1/0432/4291/3955/files/17983560049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90685913575.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8799/5814/files/nimukiguwogivev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9246/7109/files/waneberonimisatatika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bugos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0433/8074/files/briggs_and_stratton_5500_watt_generator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3428/0099/files/rerebujevupemaled.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0866/2440/files/event_horizon_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jedajuzosefowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0261/0335/files/38496037397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6240/2967/files/telangana_election_results_2020_constituency_wise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4538/8437/files/7828503713.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_off00008e3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E3D 5396 bytes
SHA-256: 62ae4c4b2aebbcc9cc7938d1bfacb986f19eb5f2a7cdb7912349d64c102930d5
font_01_sfnt_off0000a0a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0A7 10404 bytes
SHA-256: d2c5f5d9d8f9d5693f717e4500ac346ac9aae2cfc4c5cfa3e72bce39512615c7