Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e521fc6a6f9773b…

MALICIOUS

PDF

48.3 KB Created: 2020-09-02 03:40:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 947bd472d1c4fc17d59184301c454f08 SHA-1: 674eec227fc7062574ed7e90fbdedd3e3890d74d SHA-256: 5e521fc6a6f9773b686aa67572b1ff7aa79feabb52cc1f3b88a7ff22ad06d29f
154 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by an ML classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to "Jasper report studio licence" and a URL that appears to be part of a link farm designed to drive traffic. The primary malicious URL identified is https://ttraff.me/wix?keyword=jasper+report+studio+licence, which likely serves as a lure to a more dangerous destination.

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/wix?keyword=jasper+report+studio+licence
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/76dd3d_0e67e5fdcfbd427593cb7685e8abc95d.pdf
    • https://static.usrfiles.com/ugd/145364_790b748a68a24ba78da9d99f769125d6.pdf
    • https://static.usrfiles.com/ugd/b910ae_9c8b05570a07492b9a451cb5e9859f49.pdf
    • https://static.usrfiles.com/ugd/0779a3_00f99676c5904664aa0c04e0a232cd41.pdf
    • https://static.usrfiles.com/ugd/69a512_73adec66360e4e52bbbb6398ad8ee627.pdf
    • https://cdn.shopify.com/s/files/1/0443/8091/3830/files/melaleuca_catalogue.pdf
    • https://cdn.shopify.com/s/files/1/0433/7818/0259/files/dotoludaronironasexon.pdf
    • https://cdn.shopify.com/s/files/1/0434/5554/5497/files/vexudemeropuruxuda.pdf
    • https://cdn.shopify.com/s/files/1/0443/6059/7660/files/sisyphus_albert_camus.pdf
    • https://static.usrfiles.com/ugd/b8c837_7155f7c6b781428d89e675d6822e7004.pdf
    • https://static.usrfiles.com/ugd/ced2dc_e645ba48f1494e75b83a04a7eaf66a58.pdf
    • https://static.usrfiles.com/ugd/cc14e4_dec5df2a7285465592d9ab00725291fd.pdf
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/true_detective_mp4.pdf
    • https://cdn.shopify.com/s/files/1/0438/0445/9170/files/kingdom_hearts_final_mix_english_pat.pdf
    • https://cdn.shopify.com/s/files/1/0430/4447/0938/files/33232241859.pdf
    • https://cdn.shopify.com/s/files/1/0430/0144/6554/files/http_www._auswaertiges-_amt._de_de_laenderinformationen.pdf
    • https://cdn.shopify.com/s/files/1/0438/3784/9762/files/muvamipejanomanip.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_off00007be0.bin
28ff90286cacfa305550bd80386c935f1fe26acbba6ed282c341adc0a189ba7a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BE0 5056 bytes
font_01_sfnt_off00008d20.bin
7900c79da7b4c8249c0e79a69188d2a12778642ba3c2454e62304e05e7ae1bf5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D20 11744 bytes

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