Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbac0c2ad6c1dca8…

MALICIOUS

PDF

48.1 KB Created: 2020-08-30 17:37:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2a8ab18ee28cf2d16c30f8029cb7e07a SHA-1: a1dd5d569cb3536bf116c2dadb8cb035a9c02aaa SHA-256: fbac0c2ad6c1dca802158b2c7d5cc9be8d550498867da7e1e3ab3ee9385cf9c0
202 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector at 'https://ttraff.com/wix?keyword=bluestacks+portable+64+bits'. This indicates a likely attempt to lure the user to a malicious site. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. No scripts were extracted, but the presence of a malicious redirector and a link farm strongly suggests a phishing or malware delivery attempt.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/wix?keyword=bluestacks+portable+64+bits In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/19103d_f04222f74d6449f0a4c3dc592f51931b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_2b092887eafa442484de6f598e3e6a7b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_35b3df30f59144bd813ef3a35f5a57cd.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_d22341427f8f4d27855f576d3dc0180f.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/76b6de_4e232cb92004451f8381304ac084b8f8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0227/7542/files/saluxizilaxika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1690/3080/files/wirosen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0468/0967/7978/files/podojoxorarigomidisimiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4255/9384/files/silver_bullets_gungeon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/4014/5313/files/train_a_runs_back_and_forth_on_an_east-west_section_of_railroad_track._train_as_velocity.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005de0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE0 5424 bytes
SHA-256: bd1e32511102220216f0e3a309e72bf30171dfd17caa853d62744b428e63b47b
font_01_sfnt_off00007059.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7059 2044 bytes
SHA-256: e8def34ef7fa1cd1e737aa53281a1ad4be732a20e453453846aa670fb207f4af
font_02_sfnt_off000079c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79C6 10584 bytes
SHA-256: f68fe922fab28cb9ed92a5b81330ddbf2035db4fac75e772da442474d3d25f9e
font_03_sfnt_off00009e02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E02 16304 bytes
SHA-256: 334a632046566dba1e13aa2ad28522ffc4701ff005b1d667d8ded0e84145bcf3

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