Malicious PDF — malware analysis report

Static analysis result for SHA-256 62055a07914a88ea…

MALICIOUS

PDF

61.3 KB Created: 2020-09-13 00:48:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01c7cc70a7c5526f087ba122b17cddc1 SHA-1: d34ee163051080e55aa3506cdc28a7d577f08cb1 SHA-256: 62055a07914a88ea4ac739555c9f7d26dfa059967f1bafe6b921974724cc3856
154 Risk Score

Malware Insights

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

The PDF contains embedded URLs that redirect to a malicious domain, identified as a redirector. The document body, though heavily obfuscated, contains text related to 'apx male enhancement formula' and the malicious URL, suggesting a phishing or scam lure. The presence of numerous external PDF links further indicates a link farm or redirection strategy. No scripts were extracted from this sample.

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.me/pify?keyword=apx+male+enhancement+formula
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/2930/7287/files/60467867463.pdf
    • https://cdn.shopify.com/s/files/1/0432/8190/7870/files/14445919834.pdf
    • https://cdn.shopify.com/s/files/1/0431/4647/7725/files/vaxanopesutuponexegot.pdf
    • https://cdn.shopify.com/s/files/1/0433/1444/6489/files/9063707391.pdf
    • https://static.usrfiles.com/ugd/0d2908_91c2937f89554218b623c1b178836222.pdf
    • https://static.usrfiles.com/ugd/d4a9d6_a148bd1861084f17bcd58cc336ea897b.pdf
    • https://static.usrfiles.com/ugd/b4a829_f3a4b134c6be4d3ca0e527002a102203.pdf
    • https://static.usrfiles.com/ugd/b8c837_709bbebb40af484b85921a52210b3de5.pdf
    • https://static.usrfiles.com/ugd/f51585_8bd9e8580d714feda90bf9eb7a34ea65.pdf
    • https://static.usrfiles.com/ugd/76aeb6_29b6f21dea994c0e8fb2937d827528f9.pdf
    • https://static.usrfiles.com/ugd/f90bad_b05ba13c8ded44d8b8a89cd3415d4fe2.pdf
    • https://static.usrfiles.com/ugd/b8c837_9585a4372f034e088ff4e54519a577d5.pdf
    • https://static.usrfiles.com/ugd/37321e_37cdae9c187a48b0803ffb787b62323f.pdf
    • https://static.usrfiles.com/ugd/f34323_801f6917893c41de90e6cd30a89139c5.pdf
    • https://static.usrfiles.com/ugd/de02f3_b0096379c9e842a5af09895202d259cf.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007930.bin
7c4869e33579798cf53a10a1e8de65dd451c9be53ede91d44d156c0356e34d3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7930 5132 bytes
font_01_sfnt_off00008a78.bin
f1e20d750f2e098307eae3ba36573ba1f25b4ebc251568222f02874bcd28541c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A78 9736 bytes
font_02_sfnt_off0000ab06.bin
ba7ffeb14af8e82ca82e7e6663797bd3dbdfd47b23bf08380aff6e822028027c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAB06 11104 bytes
font_03_sfnt_off0000d0e0.bin
5412b583f2d419ff096355aa5d116a99444a7f9e868ba2588af740f5b90fae89		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD0E0 16600 bytes

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