Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f127d17e854611f…

MALICIOUS

PDF

46.7 KB Created: 2020-08-18 20:40:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8fa8b4b576e35820c5d954f76d9daab1 SHA-1: a5c076f85238fd5a0be39fea3dbe79ba5982921c SHA-256: 7f127d17e854611fb34e2bcdec5bbced018b0fe97ca4ab28d408e1714aecebf5
194 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, many pointing to redirector infrastructure like 'ttraff.com', which is flagged as malicious. The document body and heuristics suggest an attempt to manipulate search engine results and lure users to potentially malicious content, possibly for phishing or malware distribution. No scripts were extracted, but the embedded links are the primary indicators of malicious intent.

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=ararara+marathi+song+mp4 In PDF document text
    • http://xusuvub.debbyhaskardstrauss.com/uploads/1/3/1/4/131410812/5b316f0.pdfIn PDF document text
    • http://files.spmauzyandassociates.com/uploads/1/3/2/6/132695829/f94b72cc.pdfIn PDF document text
    • http://files.xmastrees.org.uk/uploads/1/3/1/4/131407424/f2bbaa892a.pdfIn PDF document text
    • http://files.superthinkmedia.com/uploads/1/3/0/7/130775429/3079490.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/1/0432/2865/9874/files/36793173446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gaxasukazojolivuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2935/4917/files/pengertian_model_addie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9336/4637/files/vegetarian_ketogenic_diet_food_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4000/5541/files/bits_and_bytes_ace_academy_electrical.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2190/8640/files/96300896016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6088/7705/files/92846422330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1833/6925/files/kpmg_email_address_format_uk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6423/9014/files/free_bartop_arcade_cabinet_plans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5960/9753/files/61628313287.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3663/0422/files/vivamikibunuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gegexovikorojirokelaxedu.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004fff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FFF 5280 bytes
SHA-256: 9fe02be055b25a6ef7a553650468359777719db7195afae7bcb247e1b87ad88f
font_01_sfnt_off000061d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D3 14096 bytes
SHA-256: 73c9c0c4a7270e3e186c1e050843eb99344e2a5ada0ec378e790ef903eef9164
font_02_sfnt_off00008ece.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ECE 18776 bytes
SHA-256: 001d00114279cda904ec87ee5caf81ece5266ef333c342f0ca5ce216f4908131