Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f9109a7935ab184…

MALICIOUS

PDF

38.2 KB Created: 2020-07-30 16:17:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d4aee43e40201f84b1d7527667553f9f SHA-1: 510e23e9c61425e8f4054be089f03e7e2ba8ab15 SHA-256: 1f9109a7935ab1846fb8f961cfeeed0762ce11856c5903b8f069bd5d760068e2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=will+be+going+to+present+continuous+present+simple+worksheet+pdf'. This URL is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, contains text related to a worksheet, suggesting a social engineering lure. The presence of numerous SEO-linked PDFs also indicates an attempt to obscure the malicious intent.

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=will+be+going+to+present+continuous+present+simple+worksheet+pdf In PDF document text
    • http://files.zanesvillechurchofgodcoopermillroad.com/uploads/1/3/0/7/130739510/witobofobam.pdfIn PDF document text
    • http://files.mossgardennursery.com/uploads/1/3/1/3/131379183/sifisarepazodu.pdfIn PDF document text
    • http://files.teachingandlearningwell.com/uploads/1/3/1/1/131164351/lekajabufuj.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/1/0430/8910/0951/files/23051563729.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/6565103434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3910/4917/files/48855840958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3015/1330/files/rijolujufunuze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0141/3795/files/fevenoxuzosobabub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7963/8942/files/semakovavenazedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8119/5927/files/mimude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6436/0100/files/falotizupajugisoditid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pedarivorenali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6676/0095/files/jofodupuburunugeruzir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1641/files/renowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4634/6658/files/78957561888.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_off000054b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54B7 5552 bytes
SHA-256: 5e989fd2f040a3c2c3924864dbd1cdd03edba4edb782b7eb5c7c573e380e590d
font_01_sfnt_off0000677d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x677D 9792 bytes
SHA-256: de6f7ba71dba136f98b7e687585deb6e5a017cf21399c4a4709f289c145ce50b

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