Malicious PDF — malware analysis report

Static analysis result for SHA-256 bad7969c389597ae…

MALICIOUS

PDF

47.4 KB Created: 2020-08-01 20:00:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93c6d1ed5ba748637149280efc50686f SHA-1: d122d5ff4288f303ccd3e51fcd392e859bbc5344 SHA-256: bad7969c389597aec44c20b2efa342453133fc2fc3f7e1345310524dbfdfe70c
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique often used in SEO link farms to manipulate search engine rankings or to distribute malicious content. One of the primary links directs to a known malicious redirector, 'ttraff.cc', which is likely used to obscure the final destination of the malicious payload. The document body, though heavily obfuscated, contains references to the redirector URL and other PDF files hosted on Shopify, suggesting a coordinated effort to distribute malicious links.

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=reference+equation+latex
    • http://files.pawsablyhome.com/uploads/1/3/0/7/130739892/xujedadoxuku.pdf
    • http://files.gregorypelley.com/uploads/1/3/0/9/130969332/duzowa_xetazisin_pujajirifogo_kodiguzubafi.pdf
    • http://files.keithreganofficial.com/uploads/1/3/0/9/130969810/e4136aaa748d.pdf
    • https://cdn.shopify.com/s/files/1/0433/0392/7973/files/nebox.pdf
    • https://cdn.shopify.com/s/files/1/0435/1626/4616/files/2675954289.pdf
    • https://cdn.shopify.com/s/files/1/0427/6961/2966/files/96013776554.pdf
    • https://cdn.shopify.com/s/files/1/0429/7303/6697/files/programming_directv_remote_to_vizio.pdf
    • https://cdn.shopify.com/s/files/1/0432/8154/7424/files/97195910770.pdf
    • https://cdn.shopify.com/s/files/1/0428/3714/7811/files/dimiguzerojasigovite.pdf
    • https://cdn.shopify.com/s/files/1/0435/1341/3791/files/nelufugurudogalig.pdf
    • https://cdn.shopify.com/s/files/1/0429/1290/7427/files/xosazotuzedepidoterol.pdf
    • https://cdn.shopify.com/s/files/1/0434/2431/7607/files/22063500450.pdf
    • https://cdn.shopify.com/s/files/1/0430/0741/0329/files/koguwuxawarojifiwe.pdf
    • https://cdn.shopify.com/s/files/1/0428/8453/0343/files/how_to_put_fantransltions_into_layeredfs.pdf
    • https://cdn.shopify.com/s/files/1/0432/6942/3257/files/97428709020.pdf
    • https://cdn.shopify.com/s/files/1/0430/6845/7122/files/boxemuneparofakesimevadog.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_off0000797d.bin
bce922951bd288d8cfd4834e0cdf6d3d323243d8721ea48c493c8a1f3706512c
pdf-font-stream PDF embedded font (sfnt) at offset 0x797D 4896 bytes
font_01_sfnt_off00008a4a.bin
0aa36e25fb1ba2e524e72f61e54fa2ed8afb8df07717e2f5c0f015391041a218
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A4A 11140 bytes