Malicious PDF — malware analysis report

Static analysis result for SHA-256 a22895adcccd15f7…

MALICIOUS

PDF

37.6 KB Created: 2020-08-18 18:03:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3cc2e44558c8a0e8d27f9f65b110d0fc SHA-1: 79afed45cbe756b1fb3d3e786e570d99957ca993 SHA-256: a22895adcccd15f7800904c7e76dbcfab3485bb3ae752944940d7d809f19ccde
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique often used to create link farms for SEO manipulation or to distribute malicious content. One of the embedded URLs, https://ttraff.com/pify?keyword=solid+black+background+android+app, is flagged as a known malicious redirector. The document body itself is heavily obfuscated and contains fragmented text, but the presence of this malicious URL and the link farm structure strongly suggest an intent to redirect users to harmful sites.

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=solid+black+background+android+app In PDF document text
    • http://files.jhmtva.com/uploads/1/3/0/9/130969311/f6ddae96a0b7173.pdfIn PDF document text
    • http://lesixoga.tianyugu.com/uploads/1/3/1/4/131438233/5723019.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/1/0437/1687/0293/files/pour_le_libralisme_communautaire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6836/6760/files/tonej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1955/1388/files/89092273775.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4992/7327/files/71687082319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3881/8982/files/zegazekoremagubivafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6080/4249/files/99429624014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0842/9977/files/marriage_bio_data_format_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8117/9048/files/14073984766.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1872/9110/files/lala_ramswaroop_calendar_august_2020.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 3

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_off000053cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53CF 5368 bytes
SHA-256: 7e681967e1f8593df461e5d359dcadb3f0e7b3df01aae0cbd5e296341a000f73
font_01_sfnt_off00006617.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6617 10468 bytes
SHA-256: 6efb86f8ec8f3eacf1ff71abda8fdbed48c802fcf1fa02f5c5b0687d62f11a2d

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