Malicious PDF — malware analysis report

Static analysis result for SHA-256 324bd2e82ff1aa19…

MALICIOUS

PDF

54.1 KB Created: 2020-08-11 19:14:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cfbb1afffbbc4c734d9995c5f0098d70 SHA-1: bf9f8e0466624a12bd0abfc970bb8342cd20b4b4 SHA-256: 324bd2e82ff1aa19b19f613ab66fe496a31599f8c8217b63b3d9d8ce33ac9eec
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com), which is flagged as malicious. The document body and heuristics indicate a lure for free downloads, likely a phishing or malware distribution scheme. The ML classifier strongly supports the malicious verdict.

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=kundalini+awakening+book+pdf In PDF document text
    • http://files.movementdanceandfitness.info/uploads/1/3/0/8/130874015/valalur.pdfIn PDF document text
    • http://files.tanawanhandycraft.com/uploads/1/3/0/7/130776245/e029c7.pdfIn PDF document text
    • http://files.riverdaleridge.com/uploads/1/3/0/7/130775014/bbc42ec5a22.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6275/5490/files/pemukorozina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0769/7305/files/72487546515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/25322908130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4463/2738/files/pannes_diagnostics_auto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7846/7222/files/vinakurafarebiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6296/8991/files/16032664263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/7023/8370/files/abstract_algebra_by_dummit_and_foote_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gekubamunanapomokavonata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7731/2411/files/gunifozarepib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5317/9289/files/damadizumobaxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1973/4938/files/calculus_early_transcendentals_9th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0476/4068/files/72316833669.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0733/6867/files/lubovibotokane.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 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_off0000883b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x883B 5000 bytes
SHA-256: da1437ee300391ddb7e9464359ea16b086bd05843f5800240f21cfca60e008f5
font_01_sfnt_off00009956.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9956 10488 bytes
SHA-256: fe3cfa10af0694ce82758ee601f892eb002e6416eaf969cffa8c4c2f35b02e11
font_02_sfnt_off0000bd23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD23 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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