Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddbcc36f78391c19…

MALICIOUS

PDF

43.6 KB Created: 2020-08-31 03:27:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7585e8ab2cf25b5728e6f0b9bb8182b2 SHA-1: 32e4a3ce0b11ac89a42b52fce6e6f5ef26962944 SHA-256: ddbcc36f78391c19bcfc1329f87c0455a879bf4d4bc5d30ca79d5f1be349e3a2
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=heizer+firearms+pocket+45'. This URL is presented within the document body, suggesting a lure to entice users to click. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to static.usrfiles.com. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to further 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.cc/wix?keyword=heizer+firearms+pocket+45
    • https://static.usrfiles.com/ugd/b6bf5b_f2a04f2252de43f695cf5a6511e960b8.pdf
    • https://static.usrfiles.com/ugd/67e251_594d6142a73f4afd816a247f11069537.pdf
    • https://static.usrfiles.com/ugd/ea5d7b_33e4a8a00c434dc9aa1592ae50e3409d.pdf
    • https://static.usrfiles.com/ugd/191a6d_826e95b2c33c4da2b211554fa96c30d7.pdf
    • https://static.usrfiles.com/ugd/b8c837_3b8b994bfbaf4669bd8201a54318016d.pdf
    • https://cdn.shopify.com/s/files/1/0429/6327/1833/files/balaruded.pdf
    • https://static.usrfiles.com/ugd/b8c837_d967a99cd044451d89a542901f258b04.pdf
    • https://static.usrfiles.com/ugd/b8c837_462a32b997ce4dbf8f8589a801444202.pdf
    • https://static.usrfiles.com/ugd/510a18_5fe6a9e060b641f5a86ad5a7b318ae5d.pdf
    • https://static.usrfiles.com/ugd/f3ecbe_580e9a0d2cc84946b11ff3dd6a516d61.pdf
    • https://cdn.shopify.com/s/files/1/0461/6250/9987/files/podaridowaxuvalu.pdf
    • https://cdn.shopify.com/s/files/1/0435/1016/9759/files/49109271853.pdf
    • https://cdn.shopify.com/s/files/1/0436/1384/7710/files/kuvuritunu.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_off00006ba8.bin
76e47ff3e3bb121a7d88066e3212b7a3699769e1fee7a4e9e174c2f010102f91		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BA8 5416 bytes
font_01_sfnt_off00007e0c.bin
fb7dc9c99d7e90e271478ad7ac8ec0510080521b1bc090d7d2c4ce6e74cafb2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E0C 10480 bytes

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