Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bc9bbc312e12486…

MALICIOUS

PDF

43.9 KB Created: 2020-08-18 19:02:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 44271cd0c17206427429331f11000d72 SHA-1: 030b063e8f3de1738c9d51960b1c094381c33d3b SHA-256: 1bc9bbc312e12486d6dc7340b452fecc3ae0e528d527830dcbd990739e02a4e3
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=design+technology+specification+template' which is likely intended to lure the user into downloading a malicious file. The presence of a 'download button' heuristic further supports this phishing lure.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=design+technology+specification+template In PDF document text
    • http://files.winningtimefarm.com/uploads/1/3/0/7/130776536/lolanunev_mupiwuzajafaro_fiwagif_gofamo.pdfIn PDF document text
    • http://files.zylberschtein.com/uploads/1/3/1/4/131409909/4500720.pdfIn PDF document text
    • http://detesubuj.meridenbusinessreview.com/uploads/1/3/1/0/131070420/f554db227.pdfIn PDF document text
    • http://files.janeemilyblack.com/uploads/1/3/1/4/131407571/8d4f0dda0.pdfIn PDF document text
    • http://monepo.saltlakeconference.com/uploads/1/3/2/6/132683003/ramuzexaxiva.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/1/0434/8097/3477/files/gojoxosuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3187/2166/files/komop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6579/4969/files/darolibakudisesolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5638/9528/files/gikarorafujobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7877/0076/files/64696532810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8978/8069/files/japogenerujutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0885/2117/files/21583526193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6073/1799/files/85090318252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5188/4445/files/zobugitabitatoduru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4627/2162/files/ti_83_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1931/3053/files/tezajosivarugivipuralep.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 6

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_off00005f48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F48 5436 bytes
SHA-256: 2076f56964c9d53113a869e2ed274a20931437dc2aa05b41b877afa845902290
font_01_sfnt_off000071ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71AE 15876 bytes
SHA-256: 695c0bfda1ea1c9de96eed47ca7da50fadd1c4a4f03747341fafaa23cfaeaf3d

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