Malicious PDF — malware analysis report

Static analysis result for SHA-256 afa4c9c13b5292ca…

MALICIOUS

PDF

51.0 KB Created: 2020-08-15 07:40:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 60e551a32fa8ae9e3d7ef6eeb8a29cf0 SHA-1: 2bef7c07f0b571a2df075ce161804714eb382200 SHA-256: afa4c9c13b5292caa45d982d65aaf31421e140cd9e059bfff6c832a350ec8982
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/wb?keyword=2002%20pontiac%20sunfire%20owner's%20manual'. This indicates a social engineering attempt to trick users into visiting a malicious site, likely disguised as a vehicle manual. The file also contains a PDF link farm heuristic, suggesting it's part of a larger SEO poisoning or link distribution scheme. No scripts were extracted, but the presence of multiple embedded URLs, including potentially malicious ones, supports the attack pattern.

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.cc/wb?keyword=2002%20pontiac%20sunfire%20owner In PDF document text
    • http://files.itseyez.com/uploads/1/3/0/7/130739234/745609.pdfIn PDF document text
    • http://kogiparo.gonglumvrice.com/uploads/1/3/1/6/131606758/fekimeziwutef_wivajagovibafab_konat_gakunezopem.pdfIn PDF document text
    • https://ttraff.cc/wb?keyword=2002%20pontiac%20sunfire%20owner's%20manualIn 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/1/0437/4793/4357/files/pdf_sociologia_geral.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bugos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6060/9703/files/23709024503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6974/4028/files/robasizazotabor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7577/1304/files/julagetebibuga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2884/8538/files/97522550454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4257/0402/files/jekuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8991/2218/files/62203291033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8264/5665/files/13919463479.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B2D 5348 bytes
SHA-256: 10a1a646cd299885bb84f9887d25406291c07230eb729cb7978b2e248f593177
font_01_sfnt_off00008d48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D48 10456 bytes
SHA-256: 08ab3eb1d9d2ce7cd06c0b3a90ab58373ddf8c76c5a1ef7e9124cc74198fa0af
font_02_sfnt_off0000b116.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB116 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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