Malicious PDF — malware analysis report

Static analysis result for SHA-256 5313c49e5f1359e0…

MALICIOUS

PDF

57.6 KB Created: 2020-08-09 00:56:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8872c2682a65fb439784e1e160cdad9f SHA-1: e1d0444a319d26055ff1e9541d4f6ea4672e2632 SHA-256: 5313c49e5f1359e049d52623a6e39d37181bafaeda247b7bbe3433b6a8bb7386
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=boards+and+beyond+slides+pdf+reddit'. This URL is presented within the document body, disguised as a search result. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely for SEO manipulation to increase visibility of malicious content. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive link.

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=boards+and+beyond+slides+pdf+reddit
    • http://kukuma.mifitnesslife.com.au/uploads/1/3/0/7/130775403/8035852.pdf
    • http://files.wilmingtonohw2020.com/uploads/1/3/0/7/130776817/7871241.pdf
    • http://jopit.grandridgemeadowshoa.com/uploads/1/3/1/3/131383791/bd0bd905121.pdf
    • https://cdn.shopify.com/s/files/1/0431/5706/1788/files/95520968567.pdf
    • https://cdn.shopify.com/s/files/1/0427/8494/8380/files/zewuma.pdf
    • https://cdn.shopify.com/s/files/1/0429/2041/1303/files/81642261494.pdf
    • https://cdn.shopify.com/s/files/1/0430/1661/8145/files/4335581435.pdf
    • https://cdn.shopify.com/s/files/1/0429/2493/3283/files/78052617096.pdf
    • https://cdn.shopify.com/s/files/1/0431/4542/9160/files/ayushman_yojana_form.pdf
    • https://cdn.shopify.com/s/files/1/0435/7832/7199/files/86049234582.pdf
    • https://cdn.shopify.com/s/files/1/0434/1877/9815/files/lovulovutatano.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/27482348981.pdf
    • https://cdn.shopify.com/s/files/1/0434/3165/7637/files/irish_visa_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0430/7750/1095/files/86628318898.pdf
    • https://cdn.shopify.com/s/files/1/0432/6585/1560/files/46404179999.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_off0000a23f.bin
83a647e68f746cd0f3b805f01a6bb1f8bce523d7db1d0be5d2f7abe908c3c746		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA23F 5324 bytes
font_01_sfnt_off0000b468.bin
2a11fc55ab69330213153f388886e46eb009b7080ea61091ab78b72872aa3307		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB468 10796 bytes

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