Malicious PDF — malware analysis report

Static analysis result for SHA-256 5376a61a79d44ac7…

MALICIOUS

PDF

46.2 KB Created: 2020-09-01 01:49:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53f49c85510ec278e679301ab9b7065e SHA-1: 84c63d7daf564641f7bfd873f704ae9bd267623b SHA-256: 5376a61a79d44ac71d60ca78507c967cb6021bccd9497747288d39e254d1e30f
128 Risk Score

Malware Insights

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

The PDF contains a prominent link disguised as a download button, which redirects to a malicious URL. This suggests a phishing or scam attempt to lure users to a malicious site. The document body contains the URL 'https://ttraff.com/wix?keyword=free+bunco+score+sheets+6+games', which is flagged as a malicious redirector.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=free+bunco+score+sheets+6+games
    • https://cdn.shopify.com/s/files/1/0432/1529/0529/files/40601029846.pdf
    • https://cdn.shopify.com/s/files/1/0429/6006/0567/files/80918877851.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/suton.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vozazugimutiwobawaxuleg.pdf
    • https://cdn.shopify.com/s/files/1/0431/2953/6676/files/77653450775.pdf
    • https://static.usrfiles.com/ugd/d4a9d6_71db67e7ed904b78b6b5ff22cd0d62ec.pdf
    • https://static.usrfiles.com/ugd/dfb5f8_946d2edb74424c9193bb6d92088eb2f1.pdf
    • https://cdn.shopify.com/s/files/1/0433/2666/8952/files/57451926395.pdf
    • https://cdn.shopify.com/s/files/1/0432/6742/4416/files/90737888864.pdf
    • https://static.usrfiles.com/ugd/b8c837_c780c24a1d984b8a952094585d75b96a.pdf
    • https://static.usrfiles.com/ugd/b8c837_7eaebefef42b4d12b2474f6936f870e8.pdf
    • https://static.usrfiles.com/ugd/5fd5c1_7e0cb5b3639647359a77d9ee836020c4.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/
    • https://static.usrfiles.com/ugd/b8c

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000676a.bin
355b6311d25abf165f4fb39294b8a6a98a204eb3e7c60fbe01c332004f351456		 pdf-font-stream PDF embedded font (sfnt) at offset 0x676A 5264 bytes
font_01_sfnt_off0000791b.bin
b3eedd06a8c60e8df70f87ee36c5d3a67e22dbd54131f59303826af453af974e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x791B 10688 bytes
font_02_sfnt_off00009d80.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D80 4324 bytes

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