Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb8f4ff18dc1dca3…

MALICIOUS

PDF

36.7 KB Created: 2020-08-14 01:22:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9183368e04c7d023f364799f904e427a SHA-1: 2edc0f1c7a82b833d847d331f3ad3bcd1b89acf9 SHA-256: fb8f4ff18dc1dca30c81695342288946d330586b000633812244d6fab4f83ba8
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=bounce+tales+apk+2008'. This URL is presented within the document body, suggesting a social engineering lure to trick the user into downloading potentially malicious content. The PDF also exhibits characteristics of a link farm, with numerous embedded links to external PDFs, further supporting the malicious intent.

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=bounce+tales+apk+2008
    • http://runifika.prohuman.co/uploads/1/3/2/7/132740373/telesunopeduw.pdf
    • http://xuwiz.westsidetrackclub.org/uploads/1/3/1/3/131380005/2cdcae.pdf
    • http://files.entacobowlsclub.com/uploads/1/3/2/3/132303077/1534701.pdf
    • http://files.farleydesigns.net/uploads/1/3/1/4/131453465/wakiba.pdf
    • https://cdn.shopify.com/s/files/1/0430/7514/1794/files/51027108163.pdf
    • https://cdn.shopify.com/s/files/1/0430/4902/5690/files/45170589579.pdf
    • https://cdn.shopify.com/s/files/1/0434/6786/6265/files/morodiwijeritapoxupomobuj.pdf
    • https://cdn.shopify.com/s/files/1/0439/4654/1211/files/ethical_considerations_in_research.pdf
    • https://cdn.shopify.com/s/files/1/0433/6815/3253/files/does_walmart_transfer_vhs_to_dvd.pdf
    • https://cdn.shopify.com/s/files/1/0429/6700/7386/files/wurixonatefonoxe.pdf
    • https://cdn.shopify.com/s/files/1/0432/1532/3291/files/tazikuxekigulojasudukiviz.pdf
    • https://cdn.shopify.com/s/files/1/0430/0944/1953/files/english_reading_materials_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0435/9651/3448/files/71312245651.pdf
    • https://cdn.shopify.com/s/files/1/0437/5897/7178/files/xumewezedojej.pdf
    • https://cdn.shopify.com/s/files/1/0434/7786/0516/files/rasenonur.pdf
    • https://cdn.shopify.com/s/files/1/0430/4253/7629/files/40360089120.pdf
    • https://cdn.shopify.com/s/files/1/0438/6340/8795/files/dirixawesu.pdf
    • https://cdn.shopify.com/s/files/1/0434/7199/5033/files/mohan_babu_video_songs_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/2067/1400/files/13127554384.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_off0000509a.bin
ea27883f9f4bd3fefaade77ec87d111f2b56dfb8c3ba350bfede6d4412b3f5c7
pdf-font-stream PDF embedded font (sfnt) at offset 0x509A 5412 bytes
font_01_sfnt_off00006315.bin
0ce2ad359e240f59cc81cf0f815a9d04e70c31fef716002aa272cd274c1df7de
pdf-font-stream PDF embedded font (sfnt) at offset 0x6315 10112 bytes