Malicious PDF — malware analysis report

Static analysis result for SHA-256 b215d45ce559c973…

MALICIOUS

PDF

45.7 KB Created: 2020-08-31 16:37:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50e2418dab5a3f591d7cebb0ee4586d7 SHA-1: d0bf38de2d3ef45eaaf447f418a32c3c8c793675 SHA-256: b215d45ce559c9739183a3e106e73af6f8c7c7a6d693c247695b2013c06eb3a9
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that matches the suspicious redirector. The presence of numerous links to external PDFs suggests a link farm or redirection attempt to a malicious site.

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/wix?keyword=anrede+formeller+brief+englisch
    • https://static.usrfiles.com/ugd/e3834b_2529bb7855624ce58880b4413c629e25.pdf
    • https://static.usrfiles.com/ugd/65b209_f409c1711300410f9f231cf35229454e.pdf
    • https://static.usrfiles.com/ugd/95089d_83a12ac4a744436099e5717b6e2aed54.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/59022585862.pdf
    • https://cdn.shopify.com/s/files/1/0452/0817/4743/files/systemic_pathology_book.pdf
    • https://static.usrfiles.com/ugd/b8c837_78f4b7a22861481391ec0b6becef8965.pdf
    • https://static.usrfiles.com/ugd/ca300b_2c7b408978344b55881c112aa0f6fe69.pdf
    • https://static.usrfiles.com/ugd/3f80ec_5980bbf007304362931843815c0fd766.pdf
    • https://static.usrfiles.com/ugd/8ab72e_aa5c315918a647a48bd60c53c0b8b7b5.pdf
    • https://static.usrfiles.com/ugd/b8c837_17210462a724451698488763164e7bf8.pdf
    • https://static.usrfiles.com/ugd/ab63e3_a24eb26254d54934bfdbdda7c7422759.pdf
    • https://static.usrfiles.com/ugd/4bb894_8aadcd3daf6f4041ac286da776c50ae0.pdf
    • https://static.usrfiles.com/ugd/576447_761fff3d4e3f48f7b243f105dd22aa23.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e17.bin
a885d2711f64622c49c1958ff85877be63f4e30c482bab90be1fd9a601eba958		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E17 5356 bytes
font_01_sfnt_off0000702d.bin
82904bc9158204c812f924c75f35b46be566eb0d3e73001212be72141a37bf3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x702D 11280 bytes
font_02_sfnt_off00009556.bin
018fe7ab8f823a3cb090921c1c485b4b19f8bb00c3f2c8bff27a3b653d2cb391		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9556 16084 bytes

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