Malicious PDF — malware analysis report

Static analysis result for SHA-256 5780851f799cf42d…

MALICIOUS

PDF

41.7 KB Created: 2020-08-06 10:41:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 650a070db81a15b5229e23779a919d80 SHA-1: bbb291360bee8a28ec7abfc7385fc12e8e4543c9 SHA-256: 5780851f799cf42d4ec31a6e217289ce767e7f68c3606578763f34c7ddcbcc3e
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector URL, indicating a phishing or scam attempt. The primary malicious URL is https://ttraff.com/pify?keyword=upsc+public+administration+syllabus+pdf+2020, which is designed to lure users into clicking. The document body, though heavily obfuscated, contains references to the syllabus and the PDF creation tool, suggesting a deceptive lure.

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.com/pify?keyword=upsc+public+administration+syllabus+pdf+2020
    • http://files.aecdubai.net/uploads/1/3/1/4/131453633/zigidusafuj-genuge-sudoperoj-redoz.pdf
    • http://files.isrcincinnati.com/uploads/1/3/0/8/130874180/d0f9a75d47b6ee7.pdf
    • http://files.alphahomehealthandhospice.com/uploads/1/3/0/8/130814397/tenojaze_gafalevovape_movaribabu_vufaniweneke.pdf
    • http://files.hakunamatatavrgada.com/uploads/1/3/1/3/131398046/c2629b26.pdf
    • https://cdn.shopify.com/s/files/1/0435/2681/5903/files/36321965913.pdf
    • https://cdn.shopify.com/s/files/1/0430/7176/6690/files/1743020417.pdf
    • https://cdn.shopify.com/s/files/1/0435/8776/4387/files/fisiopatologia_del_cancer_de_prostata_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0430/4456/9242/files/50816008962.pdf
    • https://cdn.shopify.com/s/files/1/0428/8380/9447/files/mitch_albom.pdf
    • https://cdn.shopify.com/s/files/1/0434/6966/8517/files/14847843406.pdf
    • https://cdn.shopify.com/s/files/1/0434/4968/0028/files/56500563917.pdf
    • https://cdn.shopify.com/s/files/1/0433/7709/8910/files/fujoxamame.pdf
    • https://cdn.shopify.com/s/files/1/0430/0288/8351/files/sipuwumidalutirimuk.pdf
    • https://cdn.shopify.com/s/files/1/0431/8222/7617/files/xijekewolazewuniz.pdf
    • https://cdn.shopify.com/s/files/1/0430/8959/2473/files/poravajofunura.pdf
    • https://cdn.shopify.com/s/files/1/0431/0600/9255/files/50851747359.pdf
    • https://cdn.shopify.com/s/files/1/0429/3902/3526/files/tofidotitekonizipudisomon.pdf
    • https://cdn.shopify.com/s/files/1/0428/7237/3411/files/64394836768.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_off00006430.bin
b9ca2002f97606eddcba585257dab9d1c9366cf37fe9363f23d29d9e75a765a9
pdf-font-stream PDF embedded font (sfnt) at offset 0x6430 5808 bytes
font_01_sfnt_off000077e7.bin
44fb7eddfcc9808c7f5b914cda2642d1dfd54a18391c8201ded31426994c478f
pdf-font-stream PDF embedded font (sfnt) at offset 0x77E7 9900 bytes