Malicious PDF — malware analysis report

Static analysis result for SHA-256 783afdaf5c055f45…

MALICIOUS

PDF

44.2 KB Created: 2020-08-10 23:08:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b2fbf6d1dd64809920d1d6a80fbf7441 SHA-1: 1ac8dd243b3adef5cabd1b9f969097eb3f8fd967 SHA-256: 783afdaf5c055f455eef7a5bc1d7462b5d61f973a637cf21a4a9ba9ead5e5e5f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The sample is a PDF document that contains a large number of embedded links, many of which point to a redirector service (ttraff.com). This suggests a phishing or SEO manipulation campaign. The ML classifier strongly indicated maliciousness, and the presence of numerous links to external PDF files, including a malicious redirector, supports this assessment. No scripts were extracted, but the document body itself contains the malicious URL.

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=cetonas+en+orina+pdf In PDF document text
    • http://files.phillyfoundationrepair.com/uploads/1/3/0/7/130775398/niranujesuzi.pdfIn PDF document text
    • http://novot.jacobsonviolinstudio.com/uploads/1/3/2/6/132695569/zudiku-nelulexujifel.pdfIn PDF document text
    • http://files.chipplondon.com/uploads/1/3/1/4/131437604/supefi-kolut.pdfIn PDF document text
    • http://files.winslowfarrsr.org/uploads/1/3/1/3/131380480/3ddad052f.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/1/0433/4914/7816/files/manetajuzixupupuno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57148414383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8408/6424/files/3428715716.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8640/4000/files/vuvufiwotirudunoneb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9341/7366/files/8947041236.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8328/4136/files/jikawetopepawibog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1687/1336/files/14735803009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0611/6511/files/frankenstein_study_guide_answer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2579/1138/files/xotovudekazarotun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7395/2158/files/contoh_soal_aritmatika_sosial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3264/9636/files/bomapel.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 3

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_off00006ddc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DDC 4908 bytes
SHA-256: ad6c6b6bec30424d455ef77634213b8aa8e7ac156240f009f463605a79bae866
font_01_sfnt_off00007e95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E95 11104 bytes
SHA-256: 2624ab32ec68c4020d5a80c5e2a40a1bac2d0957d5fd97388bb12bcd2e8d907f

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