Malicious PDF — malware analysis report

Static analysis result for SHA-256 23c8854a9444c317…

MALICIOUS

PDF

39.0 KB Created: 2020-08-30 23:49:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c4ab63a430e00e4a37a5ca4a984863bf SHA-1: 3d711f2a7198f9c138264a2cabd976fb444e88d6 SHA-256: 23c8854a9444c317e65d2afcab1e4efb8b3e39f004285bf1144bb29879b44d86
136 Risk Score

Malware Insights

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

The PDF document contains a lure for downloading the movie 'Zootopia' and includes a link that redirects to malicious infrastructure. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the presence of a link to known malicious redirector infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of external PDF links, suggesting a coordinated effort to distribute malicious content. The document body and embedded link both point to the same malicious URL.

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.link/wix?keyword=zootopia+full+movie+download+in+english
    • https://static.usrfiles.com/ugd/5de1df_14caf20d9f46419e90356bc8d9648208.pdf
    • https://static.usrfiles.com/ugd/906e9f_39161a932efd48feb0fe881b1d90bf73.pdf
    • https://static.usrfiles.com/ugd/b8c837_32d97ab57f0a47c9ab6851cf43d13cac.pdf
    • https://static.usrfiles.com/ugd/cc14e4_e52a94e16e8845b7a5f5c4957fc52cfc.pdf
    • https://static.usrfiles.com/ugd/79cb75_789aadabbb1546dfa152ad7fe52508a8.pdf
    • https://static.usrfiles.com/ugd/b8c837_a96b52027037426995c4055e1696a306.pdf
    • https://static.usrfiles.com/ugd/b8c837_62820aa7407f4a74aae379d055a23c7b.pdf
    • https://static.usrfiles.com/ugd/824332_e04e19b617bd4f189e50d674f58024c5.pdf
    • https://static.usrfiles.com/ugd/0dd040_7e6f680abfe94b9289dbc8dff5729d89.pdf
    • https://static.usrfiles.com/ugd/b8c837_6422be812c0c43898afed07fbb5b8c8e.pdf
    • https://static.usrfiles.com/ugd/b8c837_f83f012773864f15b88dd7246eeb3c87.pdf
    • https://cdn.shopify.com/s/files/1/0435/8265/2579/files/60463085793.pdf
    • https://cdn.shopify.com/s/files/1/0434/0239/5813/files/34122940094.pdf
    • https://cdn.shopify.com/s/files/1/0437/8991/0167/files/mexican_war_haversack_pattern.pdf
    • https://cdn.shopify.com/s/files/1/0432/1761/7057/files/54127527824.pdf
    • https://cdn.shopify.com/s/files/1/0428/7063/6710/files/61251965609.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_off00005a53.bin
286e11cacefcaebec218a2458c252065517a834acfc6332c4b71ce3f5be2482e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5A53 5468 bytes
font_01_sfnt_off00006ce2.bin
3dd2f9b17b7e171d899033090dd463d80c0dc9896537decf3980a697d36b6b32
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE2 10064 bytes