Malicious PDF — malware analysis report

Static analysis result for SHA-256 234b4277e59dc06a…

MALICIOUS

PDF

35.8 KB Created: 2020-08-20 21:37:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b1b27f4d0ce71983b8b83b043b518c01 SHA-1: 1abb01ecd0c3f5ba9864b352fadd0e8c0219ebf1 SHA-256: 234b4277e59dc06ae7ea528a775588b0e5985d7059bcbadae969fda9696bf240
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and a reference to 'Abzu achievements guide', suggesting a lure. The PDF also contains a large number of external links, many pointing to Shopify domains, indicating a link farm strategy. The primary malicious IOC is the redirector URL.

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=abzu+achievements+guide In PDF document text
    • http://files.folkloreandfern.com/uploads/1/3/1/0/131070202/botemokisekep-gesumajumigiw-meteziwe-dewija.pdfIn PDF document text
    • http://lameri.coloradojuniorcup.com/uploads/1/3/1/3/131398020/5630178.pdfIn PDF document text
    • http://files.kasakesari.com/uploads/1/3/0/7/130739143/8366599.pdfIn PDF document text
    • http://wipofib.beulahjoy.com/uploads/1/3/0/7/130738837/wakufuluxidesa-kudonin-gunun.pdfIn PDF document text
    • http://xoxumig.inaheadofthecurve.com/uploads/1/3/1/0/131070382/a6727ca370f.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/1/0433/0687/7080/files/zetelonum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0655/8359/files/41346771502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6037/9286/files/12492731912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5788/0996/files/dynamic_bones_unity.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1685/5453/files/asientos_de_diario_ejemplos_resueltos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/cutting_edge_advanced_teacher_s_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3728/5797/files/79388871695.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5520/0918/files/93039938178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6842/3330/files/binibototal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8421/0583/files/kugete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5349/0074/files/ignition_timing_advance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6406/5174/files/chevy_malibu_2017_user_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1416/8487/files/1433867954.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 7

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_off00004e31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E31 5464 bytes
SHA-256: 450e23c96daf601253b79f36b2bf1629c5d7f689a7e2115bc4ddfc276af86c2b
font_01_sfnt_off000060af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60AF 9864 bytes
SHA-256: 43f444fbe408f8a0eb4ae939792454961344e41741d2f909aaa391b7991bcb8b

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