Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbfb38668dbe8032…

MALICIOUS

PDF

43.4 KB Created: 2020-08-15 02:04:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fe1a4fa5ff18626837e9b2adb928d831 SHA-1: 8d929aa50d652de22f7fab883081c3dd8520da75 SHA-256: fbfb38668dbe8032822af4645a0020e4c5dc9493d80d9996a991d536ac8be7c2
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains the same URL and a reference to 'qr code generator excel spreadsheet', suggesting a lure. The PDF also exhibits a link farm behavior, with numerous external links, many pointing to Shopify domains, likely for SEO manipulation or to obscure the malicious redirector. The presence of a QR code lure heuristic further supports the phishing pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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=qr+code+generator+excel+spreadsheet In PDF document text
    • http://files.petitepetalsbyflo.com/uploads/1/3/1/4/131452740/kikimixemuda-kawovapinizo-tasikepunake-vagudap.pdfIn PDF document text
    • http://files.drbgeography.com/uploads/1/3/1/4/131454355/mopiwapon_duzuvus_jofowexafobuj_kunuguziriruv.pdfIn PDF document text
    • http://files.chloecustomcollections.com/uploads/1/3/1/4/131438175/ripimi.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/1/0428/4894/4295/files/24313447020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/2987/7151/files/134a_admission_form_2020_19.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2768/5798/files/puretivitoxena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3319/8745/files/kedojerowoxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7106/9594/files/fafutovitivenoniloximur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4606/7621/files/6281240818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2513/6792/files/78480586405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0124/9955/files/77198164156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4903/3640/files/12896183713.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3019/2039/files/wukikuleduxuzow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/9487/0935/files/lewosopuxoviz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7631/1453/files/wokuruvalalojafe.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 8

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_off00006b31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B31 5464 bytes
SHA-256: 3d0b1790810e7e2543b55a504995ea25588dd7929f3c5629f79a3c4bb0dcdf62
font_01_sfnt_off00007dbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DBC 10224 bytes
SHA-256: ab4599ca93ead9a39a82722c39c4e8929aa4324631615b766ba9dbaadeb5591b

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