Malicious PDF — malware analysis report

Static analysis result for SHA-256 17e9230322704d5a…

MALICIOUS

PDF

70.0 KB Created: 2020-08-09 18:27:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c496bd085ff1a6ce7045f63b6328b257 SHA-1: 367ae810a767fdfec49a2def0ca299eff7e10756 SHA-256: 17e9230322704d5a48eb9c2d87f1292419941caeb34f2c1c8ca9f550278eb8e6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which point to a redirector service known for hosting malicious content. The document body and embedded links suggest a lure for free downloads, likely leading to malware or phishing. The ML classifier strongly supports the malicious nature of this PDF.

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=introduction+to+the+calculus+of+variations+sagan+pdf In PDF document text
    • http://files.esposlawenforcement.com/uploads/1/3/2/7/132712235/fegovik-dobun-risazitela-fuxoxudi.pdfIn PDF document text
    • http://files.rawdiamondhair.com/uploads/1/3/0/7/130775977/1685669.pdfIn PDF document text
    • http://files.whitmancountypublichealth.org/uploads/1/3/0/7/130775434/fajire.pdfIn PDF document text
    • http://files.agonyopera.com/uploads/1/3/1/3/131380163/1223523.pdfIn PDF document text
    • http://nuxaju.phideberkeley.com/uploads/1/3/1/6/131636725/rumelojoxa-winulavewagit-watozoxen-jakobebixakuju.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/1/0439/1262/6344/files/conglomerate_merger_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8022/9791/files/beruzitumazavagixedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0860/4829/files/lonubegerar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0703/2990/files/lulijisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6499/9590/files/29976616182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7932/7141/files/sudo_without_password.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4042/3592/files/wetizavidunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8845/3533/files/zemova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tivaluzisezulumavolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4797/5062/files/84174933656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2621/1238/files/vuvejelatamoligaxulumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8276/6750/files/geographically_weighted_regression_the_analysis_of_spatially_varying_relationships.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xiguxalenagidofivixonagez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6083/0116/files/furufewojob.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b0dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0DD 5296 bytes
SHA-256: e1ed5d167658198d3d041e78a7ff80562582fc32021f56829b779317ab56de53
font_01_sfnt_off0000c2da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2DA 10400 bytes
SHA-256: b3355c02ea1e5c42b54d03a59a8b254df330acee6836499c320f5b8c1d391c61
font_02_sfnt_off0000e6ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6AE 16144 bytes
SHA-256: f7282090e270060608fdc575ded0b184a97243f724fc845514d2e81390c10c7f
font_03_sfnt_off0000fba9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBA9 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333