Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcd90732a99e84e7…

MALICIOUS

PDF

55.8 KB Created: 2020-08-02 04:53:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8f36360d6f76c053e2dd8cc9f467ff64 SHA-1: 7d1ba7824a5f8f819b7a4167281726c6c89953e7 SHA-256: bcd90732a99e84e7441542b2df7ed7b986521e2df4e5950669b58c495994e0cd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of these links, https://ttraff.com/pify?keyword=93+nissan+centra, is identified as a malicious redirector. The document body contains obfuscated text that includes the same malicious URL, suggesting the primary purpose is to redirect users to a malicious site.

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.com/pify?keyword=93+nissan+centra In PDF document text
    • http://files.oheadhra-mackenzie.com/uploads/1/3/0/7/130776254/981dd610e57.pdfIn PDF document text
    • http://files.michellexiao.net/uploads/1/3/1/6/131607346/xugex-xotosuzunixovir-kuvareduxifo-fufetatarifu.pdfIn PDF document text
    • http://files.islandartandscreenprinting.com/uploads/1/3/1/4/131452824/tolajezumu.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/1/0433/0687/7080/files/xagene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3492/5463/files/gejov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5896/1315/files/57538364299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1610/8707/files/47386127197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3426/4231/files/divulofuzasosukamadifen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1438/8888/files/tutorial_guide_to_autocad_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8995/9839/files/pemuvapopux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4617/4877/files/velejurivupojuvumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2342/3912/files/4660648945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3683/3954/files/vodumazasojuwisesononu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000079bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79BF 4984 bytes
SHA-256: 424655b85961d35276052197cd5e931ed14454df80ef9c3297db9236aa6e6709
font_01_sfnt_off00008aba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ABA 15700 bytes
SHA-256: cb40ca67500ab7945ef140ce15db06aa2cb12f29347d33b37a6f0d90d2a66f02
font_02_sfnt_off0000ba83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA83 16388 bytes
SHA-256: eb03b7be03687f40be7117bc4e30585f9a5896e11d1bc978fa4268800d78cfc5

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