Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6d8e2720879b0db…

MALICIOUS

PDF

36.4 KB Created: 2020-08-27 19:17:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3fadaad7f7125bf18f9c6997286cf518 SHA-1: 14e1446ec2e204138c8361d6dcfb6fb7afa212f8 SHA-256: e6d8e2720879b0db04accbb3d53c627eed197294f097b3f3c24eff867a1a1f3a
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=mb+starfinder+download'. This indicates the document's primary purpose is to redirect users to potentially harmful content. Additionally, the PDF was flagged for containing a mass external PDF link farm, with multiple links hosted on Shopify and other domains, suggesting an attempt to obscure the malicious destination or engage in SEO manipulation for distribution. No scripts were extracted, but the presence of the malicious redirector is sufficient evidence for a phishing or malware distribution 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/pify?keyword=mb+starfinder+download In PDF document text
    • http://files.oakwoodvethospital.com/uploads/1/3/0/8/130814110/22d6c10bbdb57.pdfIn PDF document text
    • http://jijixi.dslvnjny.com/uploads/1/3/0/9/130968973/b5d551f84f172.pdfIn PDF document text
    • http://files.convictedmerch.com/uploads/1/3/2/6/132683484/xulozoge-barameri.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/1/0429/9587/5989/files/solidworks_tutorial_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0645/9032/files/chogada_tara_garba_dance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/5178/5896/files/mitosis_karyokinesis_nuclear_division_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0982/7231/files/last_time_a_lobotomy_was_performed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5025/3992/files/does_kindle_read.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7801/6421/files/jacoco_default_report_location.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8865/9100/files/contenidos_factuales_conceptuales_procedimentales_y_actitudinales.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000047d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47D6 5140 bytes
SHA-256: 61713fb6c0a8517c0a403199cba85f7b59feb1e5afab20f4744c630430e84e1e
font_01_sfnt_off00005970.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5970 15692 bytes
SHA-256: e7c79b6348d94fc1d23f05598b42272c4953edf0341dc2aec0a8430d6a177ad9

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