Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcc27c21e867822b…

MALICIOUS

PDF

35.9 KB Created: 2020-08-17 16:14:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c129311092863cd3995569d02a2d7931 SHA-1: d7658250f5fb397b5210a245f89e9f6515b2e1cb SHA-256: fcc27c21e867822b8597734d3c7ba0c94e4c623d61bbda8c5e3f301c97526077
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=jingle+bell+song+video+free'. This indicates the document's primary purpose is to redirect users to malicious content. The presence of a low-signal heuristic for a 'download button' further supports the lure-based attack pattern. The document body contains garbled text but includes the malicious URL and several other PDF links, some of which are benign, but the critical redirector link is the primary threat.

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.cc/pify?keyword=jingle+bell+song+video+free
    • http://diwup.thisbostonlife.com/uploads/1/3/1/1/131164250/lujogujigo-jezutegago-mizamonazowi.pdf
    • http://files.gtcwomen.com/uploads/1/3/2/7/132740618/6571661.pdf
    • https://cdn.shopify.com/s/files/1/0429/9191/1066/files/the_broken_wings_kahlil_gibran.pdf
    • https://cdn.shopify.com/s/files/1/0440/6670/1477/files/big_city_adventure_free_online_game.pdf
    • https://cdn.shopify.com/s/files/1/0431/1551/1964/files/vomazarigovedajusuni.pdf
    • https://cdn.shopify.com/s/files/1/0427/7341/4055/files/wamajiwufuvukovesofojut.pdf
    • https://cdn.shopify.com/s/files/1/0435/9212/2536/files/21173267033.pdf
    • https://cdn.shopify.com/s/files/1/0438/4640/2198/files/tuwojusasoxawudomaba.pdf
    • https://cdn.shopify.com/s/files/1/0433/8909/1998/files/59288671977.pdf
    • https://cdn.shopify.com/s/files/1/0439/9949/4302/files/91486782081.pdf
    • https://cdn.shopify.com/s/files/1/0435/2868/3672/files/vanilla_wow_cooking_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/2742/3654/files/lobepolegifalur.pdf
    • https://cdn.shopify.com/s/files/1/0435/1610/0776/files/life_keith_richards.pdf
    • https://cdn.shopify.com/s/files/1/0437/6595/6759/files/golerazofisoganibataro.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94662163826.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_off00004fb2.bin
7bd5af4c0e38c0d0d71e1e348e4e276a69e5cd32647bd8ffd70954e423b0da8f
pdf-font-stream PDF embedded font (sfnt) at offset 0x4FB2 5056 bytes
font_01_sfnt_off000060eb.bin
6336b54fe9ba6a46828e49b5688776f3b16dd0ad78cbb688a017365642eee4ed
pdf-font-stream PDF embedded font (sfnt) at offset 0x60EB 9976 bytes