Malicious PDF — malware analysis report

Static analysis result for SHA-256 03514bf7527a0863…

MALICIOUS

PDF

40.8 KB Created: 2020-08-30 03:17:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 08b7179486c2b50bb15f9bd126ea03bd SHA-1: 50e52895ddb9b8f8588c01a4abaf3c5f8fecc95b SHA-256: 03514bf7527a08635d771f824befdb2a5d19402904e6608d002ae9fb76b8a52e
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, including one pointing to known malicious redirector infrastructure at ttraff.com. The document body, though heavily obfuscated, contains text suggesting it is a 'polaris ranger wiring schematic', a common lure for users seeking technical information. The presence of a mass external PDF link farm further indicates a malicious intent to distribute content or redirect users.

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.com/wix?keyword=polaris+ranger+wiring+schematic
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/e2c6c1_5d59cf87bad14216bca9fbe196e11220.pdf
    • https://static.usrfiles.com/ugd/b8c837_949bcddcbd734bbcaf75a39819f57f67.pdf
    • https://static.usrfiles.com/ugd/c7a620_5b2a1dc375e24c30b98971efd155ce22.pdf
    • https://static.usrfiles.com/ugd/b8c837_10ef68244060448abd7ba5d1a41ddbec.pdf
    • https://static.usrfiles.com/ugd/80c1db_b0b655a6ba034041be0a7ed38748c8e3.pdf
    • https://static.usrfiles.com/ugd/b8c837_258a96fa30bd41219800a6511a5ec1bc.pdf
    • https://static.usrfiles.com/ugd/19103d_5f952d0f83714166b4128e68a1098b01.pdf
    • https://static.usrfiles.com/ugd/b8bbd7_9f5c7a6fd5414ff494f0b188ed5a45cf.pdf
    • https://static.usrfiles.com/ugd/b8c837_44e0ba3334f64d47beeeb561eed61a33.pdf
    • https://static.usrfiles.com/ugd/b8c837_2556911f02764007aacff729e7e70393.pdf
    • https://static.usrfiles.com/ugd/7f16bd_312995b921c2420db6cf424053881271.pdf
    • https://static.usrfiles.com/ugd/b8c837_a49289018dd84a7f88afcfbded0bdc9e.pdf
    • https://static.usrfiles.com/ugd/b8c837_ce0eb75b390749449b9ce8ebc3cee67d.pdf
    • https://static.usrfiles.com/ugd/b8c837_5d3a76590ac14bd1a60661520427a39d.pdf
    • https://static.usrfiles.com/ugd/b8c837_4256e1a6ffbf4d08a811cea1e5adb1dc.pdf
    • https://cdn.shopify.com/s/files/1/0431/7629/6605/files/3384371532.pdf
    • https://cdn.shopify.com/s/files/1/0432/7368/3100/files/folemonaralib.pdf
    • https://cdn.shopify.com/s/files/1/0430/1642/1529/files/forexepunovukinuze.pdf
    • https://cdn.shopify.com/s/files/1/0429/6835/0886/files/dojelenosazininal.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_off00005f5e.bin
509600ecd5686085aee252ac0926ad15930a61740611e7c5a8086a4dd689fe1e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F5E 5304 bytes
font_01_sfnt_off0000714c.bin
7d95ad13d2fe9aad4c9b3acc6871557e04ca534c5b7de08b995c27c7a7f1946b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x714C 11260 bytes

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