Malicious PDF — malware analysis report

Static analysis result for SHA-256 96fef6de51d5be19…

MALICIOUS

PDF

46.3 KB Created: 2020-08-03 07:55:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83fd7ccc0296a0f3f96744ba3caeda6c SHA-1: 6021416dede3accdafd709307a4b3fb3470c0d77 SHA-256: 96fef6de51d5be194d341a4204d41c327c7333017832fb4d38acc537a92a14ee
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=java+sorted+list'. Additionally, another critical heuristic detected a mass external PDF link farm, with many links hosted on cdn.shopify.com and other domains. These findings suggest the document's primary purpose is to lure users to malicious sites. No scripts were extracted from this sample.

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=java+sorted+list
    • http://fasopiti.camralsolutions.com/uploads/1/3/0/7/130739704/a8327ec27bb.pdf
    • http://files.limassolsportsmassage.com/uploads/1/3/0/8/130874129/laxuvovobopekidom.pdf
    • http://files.applied-magnetics-shop.com/uploads/1/3/2/8/132815220/be05f.pdf
    • http://files.ptsocietytamu.com/uploads/1/3/0/8/130874324/863afd0d1c.pdf
    • https://cdn.shopify.com/s/files/1/0428/5913/5132/files/sivabosirikedurilujewuwe.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zorosibal.pdf
    • https://cdn.shopify.com/s/files/1/0435/9405/5843/files/world_of_warcraft_guild_perks.pdf
    • https://cdn.shopify.com/s/files/1/0429/4803/4716/files/zizufogijoz.pdf
    • https://cdn.shopify.com/s/files/1/0428/9521/2697/files/lupawufotupuzitufad.pdf
    • https://cdn.shopify.com/s/files/1/0433/4832/8603/files/47776082909.pdf
    • https://cdn.shopify.com/s/files/1/0430/0318/3258/files/46878187024.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mejamuzeditika.pdf
    • https://cdn.shopify.com/s/files/1/0428/5526/8519/files/assignment_3_more_pandas.pdf
    • https://cdn.shopify.com/s/files/1/0431/8239/1451/files/64064274112.pdf
    • https://cdn.shopify.com/s/files/1/0432/5100/7638/files/kemevovumirizidaxux.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_off0000712d.bin
4448e54f81289c2ed945758da4ce2e471168ef72780956e881fcf47b364af36c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x712D 4868 bytes
font_01_sfnt_off000081c9.bin
2e6432e69b37baaa20f2409332a1df043cbd5077ae936f69a05f08152afbfecd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81C9 13480 bytes

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