Malicious PDF — malware analysis report

Static analysis result for SHA-256 7946317525d62f7c…

MALICIOUS

PDF

33.5 KB Created: 2020-08-02 14:05:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: eaa5a9abb587afc98169b2365d608d1b SHA-1: 4e1ef40f3c6fef5b3be0e86d76d57b33c9a3ac18 SHA-256: 7946317525d62f7c96a8abb9909702b1eb64e33d99f092219a9839e0b33a41ad
154 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, many of which point to a link farm hosted on Shopify, and one critical link redirects to a malicious infrastructure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=can+am+owners+manual, which is likely used to redirect users to further malicious content. The document body, though heavily obfuscated, contains references to the owner's manual and the malicious URL, suggesting a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.cc/pify?keyword=can+am+owners+manual
    • http://files.camillilawoffice.com/uploads/1/3/0/7/130775859/galulazab.pdf
    • http://files.seafoammag.com/uploads/1/3/0/7/130775228/gezefe.pdf
    • http://files.lifes-a-trip.com/uploads/1/3/0/9/130969059/022d1dfc228362.pdf
    • http://files.truehopehealthyliving.com/uploads/1/3/0/7/130776739/roluzukukutos.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/4610/9341/files/viburawagogebikunariv.pdf
    • https://cdn.shopify.com/s/files/1/0430/8543/0945/files/59254704530.pdf
    • https://cdn.shopify.com/s/files/1/0430/0292/1111/files/1864554230.pdf
    • https://cdn.shopify.com/s/files/1/0429/4384/0412/files/23995413075.pdf
    • https://cdn.shopify.com/s/files/1/0434/7795/8822/files/figimowajonetavalenumoson.pdf
    • https://cdn.shopify.com/s/files/1/0437/1238/1079/files/22746668858.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jaxigosileworu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6511/4775/files/21289817046.pdf
    • https://cdn.shopify.com/s/files/1/0441/0490/8952/files/8505935768.pdf
    • https://cdn.shopify.com/s/files/1/0435/9336/7710/files/92796709798.pdf
    • https://cdn.shopify.com/s/files/1/0431/6404/1373/files/73802161675.pdf
    • https://cdn.shopify.com/s/files/1/0428/1673/3340/files/23933400087.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_off00004808.bin
7cf4879fcc20285284779381e8fd8bafce2ff8de9dc6fbe73b8591a1adadf6ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4808 4828 bytes
font_01_sfnt_off00005863.bin
973313bc0a0c1d498e0f0370b4544bf02f06e7f3e35ba85943e6b1faf1aa794a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5863 9676 bytes

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