Malicious PDF — malware analysis report

Static analysis result for SHA-256 209db5ecdc1c186f…

MALICIOUS

PDF

49.8 KB Created: 2020-08-14 16:45:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0340db33911a5b7d811be11bab08faa8 SHA-1: b1f6a41f7e594e9830e708954e6b754553ac4252 SHA-256: 209db5ecdc1c186fc9c16bc10f90cb59e7600e83f980edc08de368050e04907e
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=iptv+player+android+forum'. This URL is presented within the document body, suggesting a social engineering lure to trick users into visiting a potentially harmful site. The presence of a large number of embedded links, many hosted on Shopify, further indicates a link farm or SEO poisoning attempt to drive traffic to malicious infrastructure. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=iptv+player+android+forum
    • http://files.olica.org/uploads/1/3/0/8/130814432/3296658.pdf
    • http://files.jesuschristeagles.org/uploads/1/3/0/7/130739202/4074868.pdf
    • http://files.thesaxsmith.com/uploads/1/3/0/7/130740429/472343.pdf
    • https://cdn.shopify.com/s/files/1/0440/0617/8966/files/7162420542.pdf
    • https://cdn.shopify.com/s/files/1/0447/5263/4005/files/pirajugowevonuj.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/miveguxuxububepevomozit.pdf
    • https://cdn.shopify.com/s/files/1/0427/4572/5094/files/gimopasedisawiled.pdf
    • https://cdn.shopify.com/s/files/1/0431/4021/9041/files/how_to_refill_a_zippo_lighter.pdf
    • https://cdn.shopify.com/s/files/1/0451/0813/4053/files/basics_of_electronics_and_communication_engineering.pdf
    • https://cdn.shopify.com/s/files/1/0433/3341/9160/files/12926751038.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vabagibad.pdf
    • https://cdn.shopify.com/s/files/1/0432/9239/3640/files/39522955951.pdf
    • https://cdn.shopify.com/s/files/1/0434/6737/4758/files/44546363637.pdf
    • https://cdn.shopify.com/s/files/1/0439/8225/8334/files/dclaration_bnficiaire_effectif_remplissable.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000845b.bin
bdc1b76a76ec6c85329896c71ea3b1e90818b1b05cbcb8e2f213d0beef27f64c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x845B 5108 bytes
font_01_sfnt_off000095ab.bin
e69e56d2029537a7477817d315eaefd3d38608768f3a4fb98ebc80fec702b491		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95AB 10780 bytes

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