Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1fb331a6f885033…

MALICIOUS

PDF

49.9 KB Created: 2020-08-18 19:23:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ca7bb1bd9857e8d0811b36da0417cd34 SHA-1: dccd7e348ea90bb164913c234a0608e4904dfbf4 SHA-256: c1fb331a6f885033c4646d6b5a358696f0a08ad32100b37a498ddd5c57937c49
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=grocery+list+google+docs+template'. This URL is presented within the document body, disguised as a template lure. The PDF also contains a large number of external links, many hosted on Shopify, which is indicative of a link farm used for SEO poisoning or to obscure the final malicious destination. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=grocery+list+google+docs+template In PDF document text
    • http://files.mecha-brand.com/uploads/1/3/0/7/130776609/05d09a7022f93.pdfIn PDF document text
    • http://jirogisi.paulbrownsalons.com/uploads/1/3/2/7/132712615/taxugebe.pdfIn PDF document text
    • http://polelivuz.buckcreekvillage.com/uploads/1/3/1/4/131438539/b5df58d094.pdfIn PDF document text
    • http://zefut.thevideodomain.com/uploads/1/3/1/4/131407089/6f143.pdfIn PDF document text
    • http://denonu.learningdifferencesresourcegroup.com/uploads/1/3/1/3/131381241/95ed46d168e02.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/1/0432/4648/5672/files/process_of_biotransformation_of_xenobiotics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7218/3703/files/xogiredav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6211/7031/files/60567802693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8893/7120/files/79105077128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1661/8145/files/26066845402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9291/5864/files/solucion_salina_hipertonica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/53743621581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2368/7067/files/koduloporurerubivugorewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2855/2602/files/liriw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2980/6759/files/53150497806.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35022180152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3088/8094/files/saga_anunnaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8512/8090/files/pf_withdrawal_form_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5042/6780/files/tetixudima.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_off00006d3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D3A 5528 bytes
SHA-256: cfd5a1fe16aa3a1461b39e17b8c48ad3a5d85073f25bd4be55a9adf1a595a124
font_01_sfnt_off00007fee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FEE 9000 bytes
SHA-256: 306008a70edfe83110067ee43777f689c579f1de8d7c44b5363480c7ae0dbb1a
font_02_sfnt_off0000920b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x920B 12424 bytes
SHA-256: 1e2f949596890e28f4c616bbb2f6fa34ad891c50c8709b4bbd3a8994be9f870c

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