Malicious PDF — malware analysis report

Static analysis result for SHA-256 cee7cc70603616d5…

MALICIOUS

PDF

46.8 KB Created: 2020-08-08 19:23:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c54b5e0b28cbb63a599bddbae5e843b SHA-1: 297d976078061f167e3fbba998655b396433b0ea SHA-256: cee7cc70603616d5d7705e482358cc91cb82948e2eeed13f0c2189c3426d3123
128 Risk Score

Malware Insights

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

The PDF contains a lure for a download button and embeds multiple external links. One of these links, 'https://ttraff.com/pify?keyword=annex+xvii+reach+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The presence of a link farm suggests an attempt to distribute malicious content or engage in SEO abuse.

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/pify?keyword=annex+xvii+reach+pdf
    • http://files.nudeandtrue.net/uploads/1/3/1/4/131453494/158596.pdf
    • http://files.dalesbootery.com/uploads/1/3/2/8/132814306/20529.pdf
    • http://ziritot.batesrobplayers.com/uploads/1/3/2/3/132303382/e13a41d162e.pdf
    • https://cdn.shopify.com/s/files/1/0430/3365/7498/files/57454254354.pdf
    • https://cdn.shopify.com/s/files/1/0435/0020/8294/files/acca_f9_class_notes.pdf
    • https://cdn.shopify.com/s/files/1/0438/9847/0555/files/career_paths_medical_student_s_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/1121/1425/files/sifitipupol.pdf
    • https://cdn.shopify.com/s/files/1/0431/9376/1941/files/60644101454.pdf
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/27360613274.pdf
    • https://cdn.shopify.com/s/files/1/0434/7727/0678/files/tupofo.pdf
    • https://cdn.shopify.com/s/files/1/0430/1458/6521/files/57494175409.pdf
    • https://cdn.shopify.com/s/files/1/0431/6345/1560/files/shoutout_command_twitch.pdf
    • https://cdn.shopify.com/s/files/1/0429/9787/4851/files/breaking_dawn_part_1_123movies.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c30.bin
4e298bcab9d047316d80ad755ee6ab0c0cd7af487d50c286dd25ee173ebe8714		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C30 4748 bytes
font_01_sfnt_off00007c42.bin
1b8133d83936e6920864f2f10c03b33c9363adaf928f8f6263762f2381971352		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C42 10604 bytes
font_02_sfnt_off0000a06d.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA06D 4324 bytes

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