Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae9bf1828c380537…

MALICIOUS

PDF

54.4 KB Created: 2020-08-12 06:50:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9321b2da59987354fcae50af656c82ec SHA-1: f880cf531b478343e3550fd862563d8bf5932864 SHA-256: ae9bf1828c380537f532a1ba5a2d1753fcf6759760a08fef2d2bff5c323296dd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=bsc+1st+chemistry+notes+pdf'. This indicates the document's primary purpose is to redirect users to potentially harmful content. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to improve search engine visibility for malicious content. No scripts were extracted, but the embedded URLs and redirector link are strong indicators of a phishing or malware distribution attempt.

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=bsc+1st+chemistry+notes+pdf In PDF document text
    • http://minonigu.ridgeap.com/uploads/1/3/0/8/130813577/lajejogap_xudasimikale.pdfIn PDF document text
    • http://balesagu.marcodim.com/uploads/1/3/1/4/131453574/f47295d6ac66d0e.pdfIn PDF document text
    • http://bugaka.prosewizard.com/uploads/1/3/1/6/131636826/kebevuved-sanojibafejozu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2574/3515/files/52280003752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5941/9038/files/zebulirofupesoxipofes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3069/1496/files/10470600250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2483/4975/files/nopep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6255/0940/files/unity_2020_augmented_reality_projects.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1610/1793/files/oracle_bcs_question_bank.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8962/3208/files/rinutatepatedotavinedad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/84339996459.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4852/6246/files/kaden.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1007/1460/files/statistics_mcclave_13th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5706/9736/files/sanuzezubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8482/3205/files/vobopeduwibitisis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5285/9543/files/8017165449.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006901.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6901 5356 bytes
SHA-256: 47eb92d35b353cef64a20bcfcb5c92a2f8ca6b0a67ebbb47ee73b86c436b229e
font_01_sfnt_off00007b1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B1A 3204 bytes
SHA-256: 3ec5eaebde275098412d8dff0e1045b52b4c0e5a23abac5807418a6329e69f43
font_02_sfnt_off0000880a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x880A 2320 bytes
SHA-256: 026de1076dad6614fee7b4839f066e743e4238b5ddea94259138cfcd618330b4
font_03_sfnt_off0000925c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x925C 10500 bytes
SHA-256: ed08b184405af967da5a8a78eec0a3d096c4b8784e0dd4a1a0f64d6b38bdda30
font_04_sfnt_off0000b620.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB620 16224 bytes
SHA-256: 7a7e0f9cb89785dee93ecfbcc78ef93b5a18a5022886c2d5a0bf15d9412c15a0

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