Malicious PDF — malware analysis report

Static analysis result for SHA-256 006466f65e9b28c2…

MALICIOUS

PDF

44.9 KB Created: 2020-09-02 13:10:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2013bd7c433cb0eada93ae654de5afcc SHA-1: 56f42a10feedb42cf7f97d748c94f48d375e1aa8 SHA-256: 006466f65e9b28c2846f447757c40bf67a2c6c0b11fca0b2a8c792c38effa6e9
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains embedded links, one of which, 'https://ttraff.me/pify?keyword=cool+cv+templates+free+word', is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to CV templates, suggesting a lure to trick users into clicking the malicious link. The presence of a large number of external PDF links further indicates a link farm or SEO poisoning tactic.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=cool+cv+templates+free+word
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/b16523_10f28e6e85ca4fcbb4d6293c89ecce7d.pdf
    • https://static.usrfiles.com/ugd/b8c837_6269df8c38474704b9020af4bb0b4d61.pdf
    • https://static.usrfiles.com/ugd/87fdc7_9066c6645f00486aa94a7f7d2459e814.pdf
    • https://static.usrfiles.com/ugd/0a052f_4f47a87017394b8b9e2fb63d3b17400a.pdf
    • https://static.usrfiles.com/ugd/b8c837_3f4f84a6a05a415fadeb236f94690782.pdf
    • https://static.usrfiles.com/ugd/91e123_2943173245b5458090b8ed288cb246b6.pdf
    • https://static.usrfiles.com/ugd/70a38d_d3c54410dcbe48a3b230f64cbb288ae0.pdf
    • https://static.usrfiles.com/ugd/3bcfef_9356f3463c04468f90a7399c0e6a637d.pdf
    • https://static.usrfiles.com/ugd/086daf_66213929ba354c64a61579c824192f3b.pdf
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/victory_over_the_darkness_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0440/6345/7432/files/p_name_ka_wallpaper_full_hd.pdf
    • https://cdn.shopify.com/s/files/1/0432/8184/2341/files/mukigegejaril.pdf
    • https://cdn.shopify.com/s/files/1/0432/2711/9784/files/towojomifufofawa.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_off000070d8.bin
5b0a8ac13d712ae043b1678754f159fc6ce16dbce8e25d8514f77a0e796de083		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70D8 5360 bytes
font_01_sfnt_off0000830c.bin
fee7ffecb77cfb79ea5ca504672d16bfba27a91f13f35e605797e9b0748f5fbe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x830C 10732 bytes

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