Malicious PDF — malware analysis report

Static analysis result for SHA-256 710e1d6aed677576…

MALICIOUS

PDF

41.5 KB Created: 2020-08-21 15:45:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: db7dfed075869bfac97c18e58d360892 SHA-1: e97b7e7bdfcd7c858b1525b62ab5518ee83c1fa9 SHA-256: 710e1d6aed677576add05faab7dabf584aa0f4cbb8076f1e6bd1709a35010183
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains heuristics indicating it is a malicious redirector and an advance-fee scam lure, likely intended to trick users into clicking links. The primary malicious link points to `ttraff.com`, which is known for redirecting to malicious infrastructure. The document body, though heavily obfuscated, contains this URL and numerous other links, many hosted on `cdn.shopify.com` and other domains, suggesting a link farm or redirection strategy.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=guided+elk+hunts+in+kentucky
    • http://files.eos-strut.org/uploads/1/3/1/4/131437139/f1c56075.pdf
    • http://files.therisingstars.co.uk/uploads/1/3/2/6/132695493/68bab410cfe.pdf
    • http://files.janetlees.com/uploads/1/3/2/7/132740488/rimagonojoro_benelu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0440/7758/0453/files/45938260480.pdf
    • https://cdn.shopify.com/s/files/1/0429/9623/6447/files/49076673051.pdf
    • https://cdn.shopify.com/s/files/1/0443/1269/0844/files/conceito_de_abandono_escolar.pdf
    • https://cdn.shopify.com/s/files/1/0433/3862/9270/files/48233139006.pdf
    • https://cdn.shopify.com/s/files/1/0435/5158/8507/files/unity_2d_emission.pdf
    • https://cdn.shopify.com/s/files/1/0432/4897/6027/files/canon_camera_price_list.pdf
    • https://cdn.shopify.com/s/files/1/0434/4319/1969/files/wait_in_c.pdf
    • https://cdn.shopify.com/s/files/1/0435/3572/8794/files/kisexanuvata.pdf
    • https://cdn.shopify.com/s/files/1/0438/5210/3842/files/accuweather_lopez_island.pdf
    • https://cdn.shopify.com/s/files/1/0429/9826/8065/files/74529610814.pdf
    • https://cdn.shopify.com/s/files/1/0432/1961/5904/files/25912020728.pdf
    • https://cdn.shopify.com/s/files/1/0434/5869/1237/files/kulun.pdf
    • https://cdn.shopify.com/s/files/1/0428/1594/6911/files/burezosuzemorunesemefefaf.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064ce.bin
7dcb8c9b580929c3cffb1aa6b33a69926c9203e207be4e0beb2f37499968d528		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64CE 4916 bytes
font_01_sfnt_off00007584.bin
f0fd397f7801ff41acc091bb4a703d74e818e17b46b51570cd527c774b8a8ded		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7584 10432 bytes

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