Malicious PDF — malware analysis report

Static analysis result for SHA-256 be5908bca6e2c956…

MALICIOUS

PDF

65.8 KB Created: 2020-08-02 16:45:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1838f6ebab99ec235b05109c1c7a6bbd SHA-1: b874109f8a68b97f23e83d85fd0041ea124732f4 SHA-256: be5908bca6e2c956c35dbe176d7214f2bb95ad46cf7b03622cf51c947261e387
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded links, with one identified as a malicious redirector. The ML classifier strongly flagged this PDF as malicious. The primary malicious URL identified is https://ttraff.com/pify?keyword=assignment+3+more+pandas, which likely serves as a gateway to further malicious content or phishing pages. The presence of a link farm suggests an attempt to game search engine results or distribute content widely.

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=assignment+3+more+pandas In PDF document text
    • http://files.berksartalliance.com/uploads/1/3/1/3/131383602/fcf355f334004.pdfIn PDF document text
    • http://files.apolloartists.net/uploads/1/3/1/3/131380456/6502523.pdfIn PDF document text
    • http://files.climbireland.com/uploads/1/3/1/4/131408798/sonetazizufu_siwonesip.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/1/0430/4892/7386/files/jowupufigewob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8482/3205/files/lazabebepogega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9015/7474/files/13971860002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3590/1602/files/domapuxaluzakuxifijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/16216600544.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5009/9107/files/kewog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1478/1085/files/86063275369.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2778/4095/files/27703603878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8435/6509/files/53819942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6057/5912/files/22124078445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4512/5281/files/ww_cda_pl.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 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000086ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86EE 14176 bytes
SHA-256: 825a255b028536fb22bcc8e80a9e11270b2853bbe1ec93be4731b615f20575e4
font_01_sfnt_off0000b482.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB482 5400 bytes
SHA-256: b516fde3ea76d1385781059491702d1e20d91b46b902ffb24b92ef7cf2ab886b
font_02_sfnt_off0000c6c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6C6 15848 bytes
SHA-256: d53e65bfcd2e9a454abf0e904e1255f2c0c681a810e7ff1533575420965882bc

Open this report in the interactive analyzer, or submit your own file for analysis.