Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb8e122f78fa8ce1…

MALICIOUS

PDF

43.7 KB Created: 2020-08-25 13:49:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7911a668b06092403cc5e1b91e551dc0 SHA-1: a575ea7b59c7b2adaf524723c33bfbd848f3aace SHA-256: fb8e122f78fa8ce1c48ba3142df246aab132fefa30fed2759b9876101e722d73
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=advanced+piano+christmas+music+pdf', which likely serves as a lure to a malicious site. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content broadly.

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=advanced+piano+christmas+music+pdf In PDF document text
    • http://files.msmagnosjcs.com/uploads/1/3/0/7/130740110/8213429.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/1/0430/6193/6290/files/kowesujumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4717/4822/files/silevororowitesebivad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7917/2257/files/20315742085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9322/1783/files/58835787287.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2442/4870/files/bedutavekibok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7572/1629/files/fopesuvojowubogimewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3990/6209/files/kesuxupaxofazotoposud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0632/7959/files/libro_los_compas_y_el_diamantito_legendario.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9580/9431/files/90193719131.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

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_off0000571f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x571F 5412 bytes
SHA-256: 93f29331450637a79ad5528c5ee9064c45e6fb9941395e497171be665c645a35
font_01_sfnt_off0000695e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x695E 10376 bytes
SHA-256: 1dcc04e71756abb75256ae640dab53af813141affc7bd3a213b6da4bfd8b22ef
font_02_sfnt_off00008d30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D30 16100 bytes
SHA-256: b59afbb2f683942213df284fd86cd9422ada0c5f1ffac7698db8c94a40390bc4

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