Malicious PDF — malware analysis report

Static analysis result for SHA-256 c269aed7da34176c…

MALICIOUS

PDF

119.3 KB Created: 2020-08-13 00:16:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 502e42a6034e11502241bdfcf2c83e36 SHA-1: 0a957515e2c9d0ae4e56474a28592ace7f00d488 SHA-256: c269aed7da34176c3ca17c2c239ec7f6de47ad5aa4ab487cc78d165f702e182c
194 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to a redirector service (ttraff.ru). This indicates a link farm designed to obscure the final destination, which is likely malicious. The presence of a redirector URL and a large number of generated SEO PDF links suggests an attempt to lure users to a malicious site. The document body contains the redirector URL, reinforcing its role in the attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.ru/pify?keyword=astronomy+definition+pdf In PDF document text
    • http://zuxijidip.zerowastemamas.com/uploads/1/3/0/7/130738799/524604.pdfIn PDF document text
    • http://files.alplausumc.org/uploads/1/3/0/7/130738870/c07745b2f4be1.pdfIn PDF document text
    • http://files.colleenbardelli.com/uploads/1/3/1/8/131856065/gijomagez.pdfIn PDF document text
    • http://zogonogol.goldenfleecefarm.com/uploads/1/3/2/7/132740718/sopajumopuxo_lojude.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2816/9375/files/21_jump_street_online_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0716/5095/files/mevigilopeditasajinefurel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4751/7341/files/12640913405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0002/0635/files/metirelasosuxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4783/0183/files/html_in_discord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2670/1718/files/25284087014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7157/0069/files/electrical_breaker_types.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2633/3351/files/95268245878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7791/9129/files/pikodefasug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3846/5435/files/pabagikuluvige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81603963226.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2013/2257/files/41334302115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6873/5140/files/dotogavobe.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015ee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15EE8 4128 bytes
SHA-256: a0acb66fa83628f84f33535f7181b075f2c9d15555e1232d6dc6fa76516614fe
font_01_sfnt_off00016d74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16D74 4824 bytes
SHA-256: 295f157942b47805b9b80fa4a271456f38274b6c4b5a7f74c6845cd1d2ad27ad
font_02_sfnt_off00017dc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17DC1 13588 bytes
SHA-256: 56fbce059ee058aca4b0460c24f40288e54e470b6dc611497a38144c01bab47e
font_03_sfnt_off0001aa57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AA57 16348 bytes
SHA-256: 94d6418696c8bee3eca399091c9db5f62845ca883e0d96bdb6d1264ec9a995b6
font_04_sfnt_off0001c04a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C04A 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3