Malicious PDF — malware analysis report

Static analysis result for SHA-256 97611a16537fe2fa…

MALICIOUS

PDF

45.8 KB Created: 2020-08-08 20:52:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9b4039cbd01679082ad081bbccf5ca6a SHA-1: bf063e8214df00defa66c4e01a65d13a136094e6 SHA-256: 97611a16537fe2faf8bb28fa09d517ad1d7aec773832d3f652d580d4c4967159
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is used in a lure for 'After Effects 2020'. The document body also contains this URL and a call-to-action phrase, indicating a phishing attempt. The PDF also hosts a large number of links to other PDFs, likely for SEO manipulation to improve search engine ranking for malicious content.

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=after+effects+2020+pdf In PDF document text
    • http://files.familyeyecarelancaster.com/uploads/1/3/0/9/130969340/5052153.pdfIn PDF document text
    • http://files.ohiospfrx.com/uploads/1/3/1/8/131871466/bibisirujibule_wopemazidadowaz.pdfIn PDF document text
    • http://files.wanderlittles.com/uploads/1/3/1/3/131383892/kerepaxirid.pdfIn PDF document text
    • http://files.kwtintl.com/uploads/1/3/1/3/131379899/xizipuviwagozuvu.pdfIn PDF document text
    • http://nikorowex.talithakauffmanphotography.com/uploads/1/3/0/7/130740141/davikafawalodiz.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/1/0438/0344/3361/files/sowivopuvule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2553/8965/files/crimsons_room_walkthrough.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7401/9740/files/gasigama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3195/1517/files/cheyenne_movie_times.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6132/1634/files/pororobixike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/0604/6886/files/gauss_jordan_elimination_matlab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2813/5591/files/essential_agricultural_science_textbook_for_senior_secondary_school.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4338/9597/files/coherence_therapy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5420/2018/files/gomanunewogemida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/69470020301.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3191/2857/files/dalavub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1748/7011/files/mafebafedenimovirizon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5078/7231/files/42845835770.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_off000074c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74C2 5172 bytes
SHA-256: fca3d19d8e921a5d48e4201d787b7f6a962fb24c7fec566b6466a47c537ae1ea
font_01_sfnt_off00008676.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8676 10588 bytes
SHA-256: 22be0d4176d93cd962ec99a0177eb81c95af82f171a4a365a205886679b76d6a