Malicious PDF — malware analysis report

Static analysis result for SHA-256 51f39e2cd853a933…

MALICIOUS

PDF

37.5 KB Created: 2020-08-12 22:42:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 738ff03baaeb48d11dc43543e8330bc9 SHA-1: da92cef35258ec841c400322f4089fa077b438ac SHA-256: 51f39e2cd853a933805ed72c494e5d4649695bb0211ae8b12d2b5d0f83eda4c4
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with the primary one leading to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, appears to reference 'Ring doorbell pro setup manual', suggesting a lure to trick users into clicking the malicious link. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm strategy to improve search engine ranking and distribute malicious content.

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.com/wb?keyword=ring%20doorbell%20pro%20setup%20manual
    • http://files.minkywoodcock.com/uploads/1/3/1/6/131607063/8d56dcc2fe9e99.pdf
    • http://files.buffalobrewinghistory.com/uploads/1/3/1/4/131454352/e0ffaecea.pdf
    • http://files.clanchildhealth.org/uploads/1/3/1/4/131452997/dagewugojoma.pdf
    • http://files.saratoganykennelclub.com/uploads/1/3/1/4/131455141/pamufo_funeg.pdf
    • https://cdn.shopify.com/s/files/1/0429/8106/4853/files/55270488627.pdf
    • https://cdn.shopify.com/s/files/1/0428/4504/4892/files/adobe_photoshop_tutorials_in_urdu_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/0265/8979/files/thomas_calculus_12th_edition_solution.pdf
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/sakomujivosuxuluzumogege.pdf
    • https://cdn.shopify.com/s/files/1/0430/7753/3856/files/pinivewal.pdf
    • https://cdn.shopify.com/s/files/1/0430/5528/4378/files/tovutimifurikes.pdf
    • https://cdn.shopify.com/s/files/1/0429/1356/2787/files/rotation_90_degrees_counterclockwise.pdf
    • https://cdn.shopify.com/s/files/1/0437/6612/0602/files/learning_spanish_books.pdf
    • https://cdn.shopify.com/s/files/1/0433/3853/0965/files/key_and_peele_east_vs_west.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_off000054f5.bin
a8ca4f2d01813616a5045591109a6cc963631e8abefbfcad1704634083970f38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54F5 5424 bytes
font_01_sfnt_off00006749.bin
c5a977f9edcfbe3d90f224dd7185a50f9402e63b71110607a6d5b46aca79115a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6749 10184 bytes

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