Malicious PDF — malware analysis report

Static analysis result for SHA-256 aabac20810243b59…

MALICIOUS

PDF

44.0 KB Created: 2020-08-10 07:01:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 52cde726a5df922e4a1e74d33416220f SHA-1: 6fd845843c54446e8cac0d1ad105fa7e09fc24b9 SHA-256: aabac20810243b59381c55ef905bccb68be6c8790539b5746f82022371c4cbde
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body and embedded links suggest a lure to download further content, with the primary malicious URL being https://ttraff.com/pify?keyword=cecilia+wang+novel+pdf. The file also contains a large number of external PDF links, many hosted on shopify.com, which is indicative of a link farm used for SEO poisoning or distributing malicious content.

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=cecilia+wang+novel+pdf In PDF document text
    • http://solewa.remus-emsermann-lab.org/uploads/1/3/1/4/131409090/a257f09d.pdfIn PDF document text
    • http://files.mynxbeautybar.ca/uploads/1/3/1/4/131407625/bokosiwalekiru.pdfIn PDF document text
    • http://files.dihfs.org/uploads/1/3/2/6/132682471/lumofo_gukaduzoxuv.pdfIn PDF document text
    • http://files.writingandrhetoricmke.com/uploads/1/3/0/7/130740200/814fcbd25f.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/1/0432/1627/3563/files/46934337327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5666/8573/files/process_dynamics_and_control_3rd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3337/9487/files/vozeje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7868/0730/files/33997267472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/6900/2143/files/69826991862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2794/6904/files/wapeniv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3229/0215/files/49679432725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7754/1787/files/futowezatutaket.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6819/4965/files/sikezufipi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4856/6933/files/advanced_english_grammar_for_high_learner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0364/9954/files/55460333912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6127/2995/files/babutizerol.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 6

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ea2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA2 5108 bytes
SHA-256: b3bae2b9789089ded13056aa8722adb1c5b71c598daaac296e069714b8c539c5
font_01_sfnt_off00008039.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8039 10492 bytes
SHA-256: 8246dc4dd77dbeca25f8066f1d26d25315f15dcb77c1227319844e2c44550dc5

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