Malicious PDF — malware analysis report

Static analysis result for SHA-256 6156ad11ec1c1aa3…

MALICIOUS

PDF

72.2 KB Created: 2020-08-12 05:10:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2668f907ef6fe4087b83efa7b48d50cd SHA-1: 399b251cdc4be3ca6089966b91d80d3499836e62 SHA-256: 6156ad11ec1c1aa35af2601977d663ed463844fc8c8a311c6e85daa7f7797fa3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or scam attempt. The primary malicious URL identified is https://ttraff.cc/pify?keyword=jeffrey+archer+books+pdf, which is used in conjunction with SEO-optimized PDF links to lure victims. While no scripts were extracted, the PDF structure and embedded links strongly indicate a malicious intent to redirect users to potentially harmful content.

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/pify?keyword=jeffrey+archer+books+pdf In PDF document text
    • http://dipewik.sparklyoils.com/uploads/1/3/1/4/131453870/jikavufiraxedek_levad.pdfIn PDF document text
    • http://files.futurestarsathletictraining.com/uploads/1/3/1/6/131637306/sibusetarapuluwop.pdfIn PDF document text
    • http://fewefoduv.shamagika.com/uploads/1/3/1/4/131483281/a12a4833c60.pdfIn PDF document text
    • http://files.panduct.com/uploads/1/3/1/1/131164129/tofematopapi.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/1/0431/7272/4900/files/mapa_politico_portugal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1055/4016/files/null_in_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8096/5534/files/jonefuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/bapimafuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4687/8882/files/9058056342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9634/2695/files/46972283885.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7258/5881/files/terapi_bronkiektasis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/3096234486.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6860/5095/files/55100452685.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8936/2082/files/51602213943.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9712/9109/files/bekiluzalekipoxumajaluvom.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_off0000d053.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD053 5060 bytes
SHA-256: 66722efbe3d84098bf5a87060f6434c76abb51d715f6de8a87b49b08c78d54c1
font_01_sfnt_off0000e195.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE195 10556 bytes
SHA-256: 0a85b6985a73c8d487409dda759025e4ef4102d2a23edcf0a44a80759ba522ab
font_02_sfnt_off000105c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105C7 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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