Malicious PDF — malware analysis report

Static analysis result for SHA-256 aaeb92592ad1a189…

MALICIOUS

PDF

48.5 KB Created: 2020-08-10 09:20:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ba2702dfdde8c48025dbc7ac75dcf68 SHA-1: 227a94ca1031084d452f0a33ca3674c629290dca SHA-256: aaeb92592ad1a1894fd5c1996b7a47404b0db2dd418fe0ed12d4fdc5566ff102
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded links, many of which point to a redirector service. The primary redirector URL, 'https://ttraff.cc/pify?keyword=ap+grama+sachivalayam+syllabus+in+telugu+download+pdf', is associated with malicious activity. The document body also contains this URL, suggesting it is the intended destination for users seeking the syllabus. The presence of numerous links to external PDFs, including benign ones on Shopify, indicates a link farm strategy, likely to improve SEO for malicious content or to obscure the true malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=ap+grama+sachivalayam+syllabus+in+telugu+download+pdf In PDF document text
    • http://files.martienvanzuilen.com/uploads/1/3/0/8/130814680/9866589.pdfIn PDF document text
    • http://files.drawingonmusic.com/uploads/1/3/1/0/131070044/mupesibudunug-womexezaluzo.pdfIn PDF document text
    • http://files.laneinspections.com/uploads/1/3/0/7/130776592/1315519.pdfIn PDF document text
    • http://files.babyg-lash.com/uploads/1/3/1/3/131380390/duvobiderosofa-xekupi-rexuramod.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/1/0438/3067/3565/files/40404665013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1135/0439/files/pokemon_red._gbc_rom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9930/8711/files/10115893307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0193/6033/files/biblia_catolica_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/52163875495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7373/1741/files/prepa_abierta_ingles_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/batetenopurafado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0559/1200/files/48412916968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0894/2499/files/68637051074.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lamafavikunidamekisuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8513/5014/files/scientific_calculator_ti_84_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5283/3695/files/vepefapunizimasudenuxol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1165/4307/files/50512141829.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007e49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E49 5952 bytes
SHA-256: be28affce8f4bffe72a0124d089ade97fedeef15cb8f8c87967d8920b5469b9a
font_01_sfnt_off00009285.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9285 10016 bytes
SHA-256: 2c2362ef49cc4947a0bf9176f801811cc9dd696d43b2ef5c907f6e50ff515220