Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9716f861179ce2b…

MALICIOUS

PDF

41.9 KB Created: 2020-09-08 16:44:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5cdb6d3422073ff67d78b46ae94122c5 SHA-1: 27bea397f83ba6cf4711ca233a12c5785184f624 SHA-256: b9716f861179ce2b108ad975f0bca46dfc5b8747f5658789a5d2a446c174ae4a
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though partially corrupted, contains text related to 'free animated marketing powerpoint templates' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a link farm heuristic further indicates an attempt to drive traffic to external resources.

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.link/wix?keyword=free+animated+marketing+powerpoint+templates
    • https://static.usrfiles.com/ugd/77941b_398d2853bcb94158816e7a9efbc39b14.pdf
    • https://static.usrfiles.com/ugd/b8c837_244c20871d254709ae39f38d64059956.pdf
    • https://static.usrfiles.com/ugd/a7074a_9926a18b59224500959bf4f94330a765.pdf
    • https://static.usrfiles.com/ugd/bfbc46_73f2c993e43e43fc8bfc52dbaea4d884.pdf
    • https://static.usrfiles.com/ugd/418e76_d1fc58c3ca5f4ea58729892ca1b44f99.pdf
    • https://static.usrfiles.com/ugd/b148e5_f3aca2070d1849d896bf341e41753176.pdf
    • https://static.usrfiles.com/ugd/d775a9_dd74c7fa583340718c1c5299dff87828.pdf
    • https://cdn.shopify.com/s/files/1/0429/0589/5075/files/vocalsynth_2_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/6462/3265/files/besixotekepolepasur.pdf
    • https://cdn.shopify.com/s/files/1/0435/7786/8443/files/76238282801.pdf
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/pixijuzuwazumikefitufin.pdf
    • https://cdn.shopify.com/s/files/1/0435/5905/9615/files/bitsat_previous_papers_download.pdf
    • https://static.usrfiles.com/ugd/384ea4_455ea2b298244ce4842d69098f99b745.pdf
    • https://static.usrfiles.com/ugd/d2b720_07d3bf1f2b954aad96c76256beb84802.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_off000066a5.bin
6bf0c0bb13819700792c5ef111773f4a7d5f8fbe459010ca2b1e681258439f61
pdf-font-stream PDF embedded font (sfnt) at offset 0x66A5 5392 bytes
font_01_sfnt_off000078f8.bin
3cf13589e11c238ede78fa3472b72a994f0eb47e44fbc490fe0a57da046ad6f6
pdf-font-stream PDF embedded font (sfnt) at offset 0x78F8 9932 bytes