Malicious PDF — malware analysis report

Static analysis result for SHA-256 091bc075832f2195…

MALICIOUS

PDF

39.5 KB Created: 2020-08-23 08:47:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 45ede42bac4d842af823084bcf369579 SHA-1: 3aefd8d35a78933bb30db2a7967a6283755ec9cb SHA-256: 091bc075832f2195382a3b72016e8b87110a381ce455b73e50622a47de5ae3a4
194 Risk Score

Malware Insights

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

The PDF document contains a lure for a login form, directing users to a malicious redirector URL. The ML classifier strongly indicated maliciousness, and multiple heuristics identified the document as a redirector and a link farm, suggesting a phishing or scam attempt. No scripts were extracted, but the embedded URLs are the primary indicators of malicious activity.

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=login+sscn.+bkn.+go.+id+2019+formasi In PDF document text
    • http://files.larosamexrestaurant.com/uploads/1/3/1/4/131482968/tusugo-xonexapon-vusojibev-bovinilotug.pdfIn PDF document text
    • http://files.cavalierbattalion.com/uploads/1/3/1/3/131379477/rusugijapufaju.pdfIn PDF document text
    • http://files.faith-without-walls.com/uploads/1/3/0/7/130738554/gugedowedipizotevin.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/1/0428/2354/9094/files/geometric_patterns_grade_6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2126/3271/files/45018221557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9085/3531/files/fujawupopojipojefen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/1610/2559/files/air_crash_investigation_season_19.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3590/1602/files/zazeramivutanaveliwudoluf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5143/4659/files/modujifusajowazor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3406/7615/files/todirevivazumozube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3105/0915/files/gynaecology_mcqs_with_answers.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 5

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_off00005b12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B12 5968 bytes
SHA-256: 5105e5d980e799798e5ea99e2cd6c25b5331ac0306725d4a446e2bac005354b0
font_01_sfnt_off00006f58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F58 9980 bytes
SHA-256: 8100db52accb3e44306573fabef01f224d85abf5a797f286cc8494bcc860f65d

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