Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd86f7723601867d…

MALICIOUS

PDF

49.1 KB Created: 2020-09-17 03:58:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 48565e3164813e51f99ca422c46cb0bc SHA-1: 6dab7b31604b82dc74172cd58c9479baeaf7f950 SHA-256: bd86f7723601867d82110e36b97d52ddbe3d1db34c0e60dc91c1e5aec3a57837
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, directing users to 'https://ttraff.me/wix?keyword=civ+5+science+victory+guide+reddit'. This URL is presented within the document body, disguised as a guide for the video game Civilization 5. The file also contains a heuristic for a PDF link farm, indicating a large number of external links, many of which are to user-generated content platforms. The primary malicious IOC is the redirector URL, which is likely used to lead the user to a phishing or malware distribution site.

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.me/wix?keyword=civ+5+science+victory+guide+reddit In PDF document text
    • http://tepajobix.engineeringk12mass.org/uploads/1/3/1/4/131410685/kixuranoxozizew-bipobifomexu-pipadafum.pdfIn PDF document text
    • http://zenitavu.myleshopper.com/uploads/1/3/2/6/132681513/jepajipixewufej.pdfIn PDF document text
    • http://fezasatev.dchudphotography.com/uploads/1/3/1/4/131483468/fupesimopivi-getowuzuwep.pdfIn PDF document text
    • http://juvolis.bunnyrancher.com/uploads/1/3/2/7/132710567/kazakuxerokada.pdfIn PDF document text
    • http://muzaz.floridaselectsoftball.com/uploads/1/3/2/8/132814930/bisevisuxebu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://351dac52-38c6-416d-be20-d3881b1b3b96.filesusr.com/ugd/b222ea_5551574aabe042d5832183f94bcf99d0.pdf?index=trueIn PDF document text
    • https://4e0fecd0-fa47-49e4-bc38-34d206cff663.filesusr.com/ugd/db80c5_dcd4674de2954ecdb373231ed4ceb447.pdf?index=trueIn PDF document text
    • https://6a69cb55-7b89-45e4-915b-805a140e781a.filesusr.com/ugd/b0cb2d_c047fe4dfa274341b81a9296aa3d2ca7.pdf?index=trueIn PDF document text
    • https://1b4fdbc7-ccd1-4b15-a351-8529c7291e69.filesusr.com/ugd/3ddeef_cc7db792b1f64503869af217406a3dbe.pdf?index=trueIn PDF document text
    • https://3f2d125a-74d8-4960-b667-c9b0142049cc.filesusr.com/ugd/c345b0_eb024d25a57f45a08b1199ad6b660c42.pdf?index=trueIn PDF document text
    • https://446d5447-eda2-4e2a-9d12-c21907d32da4.filesusr.com/ugd/4f92c1_4ff71f7f78804dee9cd05549a81cfb4c.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/2772/7271/files/kotak_mutual_fund_sip_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0094/7103/files/wusamewafozijuvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8722/3198/files/carnegie_rockefeller_flexner_report.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

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008317.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8317 5056 bytes
SHA-256: de4b10b84bee31c850534b4a2aeaacf2bd0715fd4bcf7bd7e5331604c6e13d9e
font_01_sfnt_off0000946a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x946A 10248 bytes
SHA-256: 7747dbb46be91f6235b1672c10deddcadfd84782789a561aceb9f8442e710a31

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