Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb9064fe7b292350…

MALICIOUS

PDF

68.3 KB Created: 2020-08-12 05:32:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 887da367057693ad6b17efac2bdcb682 SHA-1: a834cbd78dc86bf0ebbb1beb310a9b9f54ccc08c SHA-256: cb9064fe7b2923509cc7506589ab9a713bc36a1a6b27dce51ec36f74497c4ddd
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is further supported by the presence of a PDF link farm. The document body, though heavily obfuscated, contains the URL "https://ttraff.cc/pify?keyword=bus+network+topology+pdf", indicating a lure to a malicious redirector. The numerous embedded links suggest an attempt to distribute malicious content or engage in SEO poisoning.

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=bus+network+topology+pdf
    • http://nisixi.thecinnamonowl.com/uploads/1/3/1/0/131070867/7104428.pdf
    • http://files.poderpac.com/uploads/1/3/2/6/132681308/9548353.pdf
    • http://files.bashleyart.com/uploads/1/3/2/7/132741110/raxotefidez-vuzininurigiwo-kexujepojotik-masobatazij.pdf
    • https://cdn.shopify.com/s/files/1/0437/3151/7605/files/disirewetixedereweva.pdf
    • https://cdn.shopify.com/s/files/1/0430/6668/7642/files/48618855655.pdf
    • https://cdn.shopify.com/s/files/1/0435/4909/8148/files/search_document_in_safari.pdf
    • https://cdn.shopify.com/s/files/1/0432/0804/8808/files/31036331601.pdf
    • https://cdn.shopify.com/s/files/1/0432/5038/5051/files/76983134274.pdf
    • https://cdn.shopify.com/s/files/1/0439/6577/6030/files/99887959286.pdf
    • https://cdn.shopify.com/s/files/1/0434/2225/3208/files/bargarh_district_pin_code.pdf
    • https://cdn.shopify.com/s/files/1/0431/0351/8882/files/lotewegabezoxigusemani.pdf
    • https://cdn.shopify.com/s/files/1/0435/8907/5099/files/vetanotukujuso.pdf
    • https://cdn.shopify.com/s/files/1/0435/7128/2079/files/xinujilezomodomawenipiwu.pdf
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/69864783362.pdf
    • https://cdn.shopify.com/s/files/1/0433/4652/6376/files/fateligiwuvafejazixirudu.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_off0000ccef.bin
94b07b757554a3c618175408c387955edbd5e629a4073273bf95030afffe73e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCCEF 5308 bytes
font_01_sfnt_off0000df2d.bin
6f59028100058f641ca8365018aa3809033318516948e2e75fccfe74f8314eab		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDF2D 10772 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.