Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3cd9eb3971ce088…

MALICIOUS

PDF

37.0 KB Created: 2020-08-31 20:55:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58db5c25e813cd32c897cc220ea57e04 SHA-1: ce6017572a40ea0ee711e6216f55ae953fe59a32 SHA-256: d3cd9eb3971ce088a7b65aa9f3e5e405b13462fb7a7a62ad1f9dde35db84579e
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which points to 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to 'Bloons td 6 apk mod 4. 0' and the malicious URL, suggesting a lure to download a modified game. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, likely for SEO manipulation or to obscure the malicious redirector.

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=bloons+td+6+apk+mod+4.+0
    • https://cdn.shopify.com/s/files/1/0434/4076/7132/files/pawesafugava.pdf
    • https://cdn.shopify.com/s/files/1/0434/4617/3852/files/kisepuw.pdf
    • https://cdn.shopify.com/s/files/1/0430/9562/1781/files/rerimozose.pdf
    • https://static.usrfiles.com/ugd/b8c837_86b8e7b476734cdd85e02ed1c7314eeb.pdf
    • https://cdn.shopify.com/s/files/1/0427/3651/7286/files/cch_chuyn_t_file_sang_file_jpg.pdf
    • https://cdn.shopify.com/s/files/1/0432/3170/7294/files/2745167373.pdf
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/majefategoxilemugo.pdf
    • https://static.usrfiles.com/ugd/2f8cea_6dc9f8b2a0524893bd27cfaf22d492d1.pdf
    • https://static.usrfiles.com/ugd/b8c837_3660a2cb9bf04d14a9ef227cb72b6c90.pdf
    • https://static.usrfiles.com/ugd/1cc7e8_145263a7213f42438616e97ac9bbd4b0.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_off00005435.bin
78a8fcc579324da37bb43391d18d34331849856e6c771a386d86ca52c4de0194		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5435 5536 bytes
font_01_sfnt_off00006704.bin
1168715eeea2ed2db99d7f68e158f40295e89382ece8689dcd949565f6702409		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6704 9916 bytes

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