Malicious PDF — malware analysis report

Static analysis result for SHA-256 7db60ed503eceeeb…

MALICIOUS

PDF

35.3 KB Created: 2020-08-08 03:12:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 35f25dad6eaf0f1c95942b6465d276f2 SHA-1: f1ce2aaf5f00e405520c482e760aa1b719d3fbe1 SHA-256: 7db60ed503eceeeb9f973fa7ad3a2754ce5b12030d9ddd7ee3d1374b58951470
194 Risk Score

Malware Insights

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

The PDF document contains multiple embedded links designed to redirect users to a malicious SEO redirector, specifically 'https://ttraff.cc/pify?keyword=servi%25C3%25A7o+social+e+meio+ambiente+livro+pdf'. This redirector likely leads to further malicious content or phishing pages. The document's structure and link farm indicate a phishing or scam attempt disguised as a free PDF download.

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=servi%25C3%25A7o+social+e+meio+ambiente+livro+pdf In PDF document text
    • http://files.va-sg.com/uploads/1/3/0/9/130969357/f9274d888565e.pdfIn PDF document text
    • http://files.sflat.net/uploads/1/3/1/6/131606874/kabasinopizevu-jinabobavibapem.pdfIn PDF document text
    • http://files.internallyflawless.net/uploads/1/3/1/3/131380213/98ac0e858fec17.pdfIn PDF document text
    • http://fovabas.turlocktransit.com/uploads/1/3/1/0/131070356/4954615.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/1/0434/3159/2088/files/71828018429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5780/6502/files/39491277587.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4953/4111/files/67549113489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2159/6834/files/65808965241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4848/5535/files/fobexexojuturuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4877/2519/files/76606008361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/murizuzaridexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9907/8299/files/ganofubezaxofewukasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1922/2687/files/asignatura_estatal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4443/7142/files/pikalujomukijavib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2909/3800/files/problemas_de_caida_libre_fisica_resueltos.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_off0000474f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x474F 5788 bytes
SHA-256: cc2e9243140ef817ca207a4a5806a166fac7e7ed920eeac34c86718f6050cb36
font_01_sfnt_off00005aa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AA9 11932 bytes
SHA-256: dbc6cee26da2ad25f55760fc6c52a3e458e95b32461a9e5e9de52eee9df950e9