Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d2d019d4fa3e89e…

MALICIOUS

PDF

46.7 KB Created: 2020-09-02 00:05:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7c45a6e4f975ee8c92bce6d6d21f4c40 SHA-1: 20265327fbbfa3dcb705c4dba66f03cfa505866c SHA-256: 6d2d019d4fa3e89e8fd881faf6b93130f363b3a12e3ac2ccb0ced984af19f2cb
194 Risk Score

Malware Insights

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

This PDF document is classified as malicious due to its use of a link farm and a redirector to known malicious infrastructure. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. This suggests the document is designed to trick users into clicking malicious links, likely as part of an advance-fee scam, by masquerading as a parcel delivery notification.

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.ru/pify?keyword=acrylic+plastic+sheet+3mm
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/0f5b72_7974ff43b1af4ceea7309b7a7c2fc769.pdf
    • https://static.usrfiles.com/ugd/b8c837_321e63a406674f84b0232b4cc4073adf.pdf
    • https://static.usrfiles.com/ugd/868b90_7bc17c6379934ea58ff21cd76db6a99e.pdf
    • https://static.usrfiles.com/ugd/5be868_f09c5d58636f4dad91f7b4d45a83a2c8.pdf
    • https://static.usrfiles.com/ugd/805d2a_6c519437fde5470db846ebf380e4afaf.pdf
    • https://cdn.shopify.com/s/files/1/0432/0536/1821/files/erectile_dysfunction_protocol_book.pdf
    • https://cdn.shopify.com/s/files/1/0462/2680/0791/files/46804327421.pdf
    • https://cdn.shopify.com/s/files/1/0439/1449/4107/files/2858617792.pdf
    • https://cdn.shopify.com/s/files/1/0432/0568/9499/files/1555735801.pdf
    • https://cdn.shopify.com/s/files/1/0438/3172/2146/files/76988157131.pdf
    • https://static.usrfiles.com/ugd/15d534_dd31b7e7fd444bfaa468843bd45c39d2.pdf
    • https://static.usrfiles.com/ugd/078c79_c581ecaa02ac43709c4ad9352f6f01ce.pdf
    • https://static.usrfiles.com/ugd/a6e5e9_aa99e777e21e4014ae9f5839f3925e9c.pdf
    • https://static.usrfiles.com/ugd/b8c837_d34944ebd7a840a1aca28e821e20bf63.pdf
    • https://static.usrfiles.com/ugd/b8c837_881cc323d08a4920bc23ca4f190983e2.pdf
    • https://cdn.shopify.com/s/files/1/0429/4865/7318/files/2747591588.pdf
    • https://cdn.shopify.com/s/files/1/0437/7044/5975/files/chipotle_fax_order_form_2018.pdf
    • https://cdn.shopify.com/s/files/1/0431/9051/7917/files/mmpi-_2_questions.pdf
    • https://cdn.shopify.com/s/files/1/0432/3573/7755/files/16480672363.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_off00007545.bin
b0de2655f3b8673955d297d924efd9cd7c89805388e6bd9c2baf129a2f50a555		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7545 5428 bytes
font_01_sfnt_off00008799.bin
010ec1831b0156fa5cf9098bf2e2b90c5b46052b6ca3c8875e53c1cb5f882460		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8799 11412 bytes

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