Malicious PDF — malware analysis report

Static analysis result for SHA-256 248297285e28d09e…

MALICIOUS

PDF

51.9 KB Created: 2020-09-01 09:49:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 09ab1554e4ceb3783159548c58d0f612 SHA-1: 33a03a3fc8d6fb46bfacb66655120fe384ab264c SHA-256: 248297285e28d09eab35b11963950d44f751d7f2d9493ffeda947489fac83521
128 Risk Score

Malware Insights

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

The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body also contains a call-to-action phrase, suggesting a lure to trick users into clicking the link. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, further supporting a malicious intent to drive traffic to potentially harmful sites.

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=clash+of+clans+war+weight+guide+2019
    • https://static.usrfiles.com/ugd/3b7182_7d5d518a3c56421ab82280fe5ec0cb33.pdf
    • https://static.usrfiles.com/ugd/b8c837_c007166d0c1f478d9e6c4c4778f2723f.pdf
    • https://static.usrfiles.com/ugd/590778_3c2b43a70e194425b7b2a2776cacac1b.pdf
    • https://static.usrfiles.com/ugd/b8c837_808ed6bc52454164bcfb3ea2763fa2b2.pdf
    • https://static.usrfiles.com/ugd/b8c837_1b2ea211f6774780906f6e8b7e9151f7.pdf
    • https://static.usrfiles.com/ugd/08fe48_26aae560d8e5418184905a8adfa07c6d.pdf
    • https://static.usrfiles.com/ugd/234f58_cf3b8ef318e248ed869a1316c59f8a3c.pdf
    • https://cdn.shopify.com/s/files/1/0433/6241/8846/files/industrial_design_and_ergonomics.pdf
    • https://cdn.shopify.com/s/files/1/0440/6067/2165/files/adjective_to_abstract_noun.pdf
    • https://cdn.shopify.com/s/files/1/0437/7329/6789/files/all_might_wallpaper_android_hd.pdf
    • https://cdn.shopify.com/s/files/1/0431/6728/5410/files/accounting_and_finance_dissertation.pdf
    • https://cdn.shopify.com/s/files/1/0432/0883/5234/files/norma_astm_a36_en_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0440/6778/2808/files/milling_cutting_tools.pdf
    • https://cdn.shopify.com/s/files/1/0439/3605/5454/files/convert_csv_to_vcard.pdf
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/93112678151.pdf
    • https://cdn.shopify.com/s/files/1/0436/7994/0761/files/jewish_study_bible_download.pdf
    • https://cdn.shopify.com/s/files/1/0438/9902/7611/files/veliwafo.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_off0000897c.bin
0c7cc575593236962d29de902fc921879586b15147c70ecc7bfdc7a46e455c24
pdf-font-stream PDF embedded font (sfnt) at offset 0x897C 5760 bytes
font_01_sfnt_off00009d22.bin
f3fbf1c05791f21bf5fd1048c62a536d95805084f72718220f4c36a446d58580
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D22 10960 bytes