Malicious PDF — malware analysis report

Static analysis result for SHA-256 b809a557377ecd40…

MALICIOUS

PDF

598.2 KB Created: 2020-08-03 10:47:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 54185b7f22d514b373f42b5907f59ccd SHA-1: 07e094dcdc77602fadd449d9c0685637bed28b10 SHA-256: b809a557377ecd400271c3463b48289a7690a1bc240ae0076ff8a81ca2530674
142 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is a malicious redirector link and uses an advance-fee scam lure. The embedded URL, https://ttraff.ru/pify?keyword=breaking+dawn+full+book+pdf, is likely the initial stage of a phishing or scam campaign. The document body, though heavily obfuscated, contains references to the lure and the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9825

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.
  • 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.ru/pify?keyword=breaking+dawn+full+book+pdf In PDF document text
    • http://sezeg.jrbriscoe.com/uploads/1/3/1/3/131381078/ropufama_puxemotawap.pdfIn PDF document text
    • http://files.4yourkingdom.com/uploads/1/3/0/9/130969735/raxediwenuxop.pdfIn PDF document text
    • http://files.bankonmemphis.org/uploads/1/3/1/4/131453695/boxed_bibafizexuro_naresiwuxe_mazuzexesume.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/1/0430/2379/4339/files/91165439993.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zurutadodusabexefiba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9258/2293/files/benipuposanixemikivu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3089/files/78812154976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8095/8617/files/kaxujuxamijodowisogoro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4916/4698/files/88891601590.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7651/8049/files/47429579389.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21533622499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6704/0154/files/witoriwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2937/2832/files/2060406594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9033/7182/files/mapefive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4958/9668/files/lugojobarisarome.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 2

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_off000912a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x912A0 5376 bytes
SHA-256: 9696795dd3e5685cfcc0529d70e5a2ded495a22e961ec2fc07f403be236e4388
font_01_sfnt_off00092513.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92513 10436 bytes
SHA-256: 9c50e7ff7c50ecce2f3466ff12055fa9fb40c6f133703cdde4a3a5c59a7ddc5f

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