Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba16ea63a164c19b…

MALICIOUS

PDF

39.1 KB Created: 2020-09-14 00:59:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 61b47801f48cfab9adcd2dad02d93368 SHA-1: 93b3119dc554aeb48b5b0c160204a81181ea66a9 SHA-256: ba16ea63a164c19b05e68b41f3030ccc9bed17354905655da78336097df0ad1b
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to a known malicious domain. The document body, though heavily obfuscated, contains text related to 'plants vs zombies 2 unblocked 66' and the malicious URL, suggesting a lure to a potentially malicious site. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the presence of a link to malicious infrastructure.

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.me/wix?keyword=plants+vs+zombies+2+unblocked+66
    • http://files.bcahope.com/uploads/1/3/0/7/130775519/wenedopudomer-ragimisipu-jigogonugupexuj.pdf
    • http://bupufew.quattrostringacademy.com/uploads/1/3/0/7/130775403/d0d1bcb67da57.pdf
    • https://cdn.shopify.com/s/files/1/0429/5317/9289/files/android_cardview_shadow_size.pdf
    • https://cdn.shopify.com/s/files/1/0438/4522/2550/files/class_arachnida.pdf
    • https://cdn.shopify.com/s/files/1/0431/2412/9952/files/75358831466.pdf
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/anthem_bcbs_fep_prior_authorization_form.pdf
    • https://cdn.shopify.com/s/files/1/0429/0553/4620/files/geometric_shapes_and_organic_shapes_worksheet.pdf
    • https://static.usrfiles.com/ugd/ab059d_f5b47b8dba5842e1929d1cb288a7eae2.pdf
    • https://static.usrfiles.com/ugd/1be480_cb975985f05540628b2ad90102e9341f.pdf
    • https://static.usrfiles.com/ugd/37987b_0db75c3215a245e185eb5fd087671d06.pdf
    • https://static.usrfiles.com/ugd/b42fd6_46c97c6897854d97958c42f9b2872339.pdf
    • https://cdn.shopify.com/s/files/1/0435/9297/4499/files/wow_classic_enhance_shaman_guide.pdf
    • https://cdn.shopify.com/s/files/1/0435/0319/0181/files/69857338917.pdf
    • https://cdn.shopify.com/s/files/1/0437/8561/7570/files/zugopogofog.pdf
    • https://cdn.shopify.com/s/files/1/0431/5847/0813/files/uu_sebelum_amandemen.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_off00005a3a.bin
628f1f06ed1c025d802fd476d01699518121a5104942d0b1ade0cbd722c416ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A3A 5592 bytes
font_01_sfnt_off00006d3d.bin
85fd35fb1f1ed2a8e89df773fed177c7b3fc90c1e73983b187d8891460c798c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D3D 10140 bytes

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