Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0560859e03578da…

MALICIOUS

PDF

38.5 KB Created: 2020-08-08 22:27:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54f8d44c1bda0be456746d573e800156 SHA-1: d4a7a08db72ec5751ab5446b881020bf37b13da9 SHA-256: b0560859e03578dae5cacb230c345b46c26b073ffbda5d2c3e4fde69e8aeb1d8
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=academic+vocabulary+in+use+2020+pdf'. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting the document is part of a link farm or used to distribute further malicious content. The document body itself is heavily obfuscated and contains the same URL, reinforcing 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.ru/pify?keyword=academic+vocabulary+in+use+2020+pdf
    • http://files.chicointerfaith.org/uploads/1/3/0/7/130775907/6928c.pdf
    • http://files.nickellabradors.com/uploads/1/3/1/4/131454850/cfd840538897474.pdf
    • http://files.jordanbc.org/uploads/1/3/0/7/130739614/64cdc340d7.pdf
    • https://cdn.shopify.com/s/files/1/0430/1894/4665/files/21453835288.pdf
    • https://cdn.shopify.com/s/files/1/0428/3046/3142/files/12629647139.pdf
    • https://cdn.shopify.com/s/files/1/0432/2738/1920/files/kagarenigaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/wunonapusele.pdf
    • https://cdn.shopify.com/s/files/1/0429/6874/4087/files/69160264763.pdf
    • https://cdn.shopify.com/s/files/1/0429/2709/5967/files/linuvosixifaba.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51851907441.pdf
    • https://cdn.shopify.com/s/files/1/0433/8280/0542/files/jidevokebape.pdf
    • https://cdn.shopify.com/s/files/1/0427/6515/6508/files/gevusibatigik.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/59677855830.pdf
    • https://cdn.shopify.com/s/files/1/0431/4074/3329/files/gagotesafizi.pdf
    • https://cdn.shopify.com/s/files/1/0429/5386/7427/files/32029007332.pdf
    • https://cdn.shopify.com/s/files/1/0438/2710/1853/files/dizijapesiwo.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_off00004d4d.bin
e473a6d87540297ba26808dd4ce39e48f34b688062f0fd0e8ab8971bc91fb3e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D4D 5868 bytes
font_01_sfnt_off00006139.bin
96a1456b7fe1419b6f940317b5aa1c67b87fe94f0b18a57e9c9b968439b7ecee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6139 14236 bytes

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