Malicious PDF — malware analysis report

Static analysis result for SHA-256 195c1f59d1c79a2a…

MALICIOUS

PDF

41.5 KB Created: 2020-08-13 22:47:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b396f44a0ad66529bdc10e365a9ea9c5 SHA-1: 4b50d3265f2a9c169689d73f9da9b26111c561a1 SHA-256: 195c1f59d1c79a2a9aa637e723dd28a89cb8984124053df486b17b5f00362e11
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links, many of which point to a redirector service (ttraff.cc) that is flagged as malicious. The document body and heuristics indicate a lure for a drum sheet PDF, which is a common phishing tactic. The presence of embedded URLs and the ML classifier strongly suggest malicious intent, likely to redirect the user to a malicious site or download further malware.

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=here+i+go+again+drum+sheet+pdf In PDF document text
    • http://files.walkamilebrainerdbaxter.com/uploads/1/3/2/6/132682813/rojivolep_vapudofezokem.pdfIn PDF document text
    • http://files.mnpeo.org/uploads/1/3/0/9/130969758/tiwexavajedije.pdfIn PDF document text
    • http://files.longlakehounds.com/uploads/1/3/1/4/131438188/41f1021ff76.pdfIn PDF document text
    • http://files.lindseymcnaughton.com/uploads/1/3/0/7/130775049/miruroworosib.pdfIn PDF document text
    • http://wivoke.paradiseprintsfashion.com/uploads/1/3/1/3/131383791/disil-kapawiwusidi-gaduditur.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/1/0428/9835/8432/files/gijamibumiji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2668/5858/files/xabuzajegabatetewapawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0213/4681/files/datation_carbone_14_exercice_corrig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8502/8758/files/febisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3279/6574/files/65525239129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/zend_avesta_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3458/1911/files/tobira_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5852/8405/files/47999302060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3337/9484/files/marathi_calendar_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5356/4583/files/paxaporejosuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7116/8931/files/72415714218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8933/0325/files/volebuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6789/2131/files/42687910337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8584587797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2187/6899/files/31500743108.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_off00005896.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5896 5384 bytes
SHA-256: 639fe9000a95ee798cbb9788862e70324a8cfe8e75f71a958dae1d9d38607e12
font_01_sfnt_off00006ab4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AB4 14856 bytes
SHA-256: 45070b6589aadc14b97f76b5919fccbf513d56f942ee9c6082864901630ee78c