Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e1b4092239fba99…

MALICIOUS

PDF

45.0 KB Created: 2020-08-13 23:09:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ec6e98ae5659617252d587fe7ac7c83e SHA-1: 3485b09e17b3f56115d1a6bd2376e2ca3a5401f0 SHA-256: 0e1b4092239fba99e59338545dae6bd6363cfc968d803efb90bcefdcec1889b3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with a critical heuristic firing indicating it redirects to known malicious infrastructure via the URL 'https://ttraff.com/pify?keyword=oxygen+not+included+guide+tips'. This suggests a phishing or scam attempt, likely using a lure related to 'Oxygen not included guide tips' to entice clicks. The ML classifier also strongly flagged this PDF as malicious.

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=oxygen+not+included+guide+tips In PDF document text
    • http://files.sydneyinsightmeditators.org/uploads/1/3/1/3/131398095/zolesifufurezevijuz.pdfIn PDF document text
    • http://wopelalew.zakeryrey.com/uploads/1/3/1/3/131384635/kilatuxatuxevu-duwotezajakapom-bajutenafim-kuvorusigaxi.pdfIn PDF document text
    • http://files.ncpimaging.com/uploads/1/3/1/6/131607943/ketotedebazisam-zalunasar-xamujiwidabo.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/1/0435/7367/4142/files/toxol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2585/6669/files/bodopos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7624/7971/files/vuforotavuworujur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2779/9970/files/29925466622.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1387/3569/files/life_beginner_teacher_s_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8627/4967/files/kivowik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6333/6350/files/razenusuvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/6778/8712/files/antrenmanlarla_matematik_2_zml.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7538/7043/files/vorrel_s_wedding_ring.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4170/9462/files/juzizexupebopuvadipoxunuz.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_off00007346.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7346 5132 bytes
SHA-256: ebdb5495ce3ef846d9157b46d50fa22ad6b1fda1148fa121354cc05df6cf6be2
font_01_sfnt_off000084de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84DE 10044 bytes
SHA-256: 4b763dfe41f75c4ef3533ec17ec34fdb38e75a2e3271e686cc4403f0d23a61ac

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