Malicious PDF — malware analysis report

Static analysis result for SHA-256 aba6ee4a45909791…

MALICIOUS

PDF

48.2 KB Created: 2020-08-11 23:28:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c98ef8224c76439142930fae2e2d31d SHA-1: c5ec22e5ec19a2ecd865e3e3492c9b984f21fead SHA-256: aba6ee4a45909791db1fd14ea82416be4c15219abd940867c13c6ce89a5405f8
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a malicious redirector link disguised as a business plan download, which leads to further links. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic firing confirms the link's malicious nature. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many hosted on Shopify, suggesting a link farm designed to attract traffic. The document body contains the text 'Business plan for broiler chicken farm pdf' and a URL that matches the malicious redirector, reinforcing the lure.

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=business+plan+for+broiler+chicken+farm+pdf
    • http://files.conwayfeedandgarden.com/uploads/1/3/1/8/131856950/wezuzimu.pdf
    • http://files.teresaverney.co.uk/uploads/1/3/1/3/131378985/kusosovurokubed.pdf
    • http://files.kabirchopra.com/uploads/1/3/1/4/131452846/tezobibu_zumis_gujelokoxudurit.pdf
    • http://files.pakpourlab.com/uploads/1/3/0/8/130874317/tasim-pumatox.pdf
    • http://xobesupu.agrowersgranddaughter.com/uploads/1/3/1/4/131438641/wakabe_dibowidevaxuzu_zevafewosabugu.pdf
    • https://cdn.shopify.com/s/files/1/0436/8983/6697/files/gujofumavibosoroniwaliv.pdf
    • https://cdn.shopify.com/s/files/1/0431/5601/3205/files/star_trek_beyond_putlocker.pdf
    • https://cdn.shopify.com/s/files/1/0440/8400/2981/files/14040391587.pdf
    • https://cdn.shopify.com/s/files/1/0436/0595/0626/files/juvaba.pdf
    • https://cdn.shopify.com/s/files/1/0428/8518/5702/files/majevejepimu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1865/7697/files/97428176827.pdf
    • https://cdn.shopify.com/s/files/1/0428/5287/6455/files/sumunepipom.pdf
    • https://cdn.shopify.com/s/files/1/0428/4655/2227/files/puregilitifu.pdf
    • https://cdn.shopify.com/s/files/1/0440/2026/9221/files/fabelhafte_welt_der_amelie_piano_noten.pdf
    • https://cdn.shopify.com/s/files/1/0436/9927/3896/files/31519000465.pdf
    • https://cdn.shopify.com/s/files/1/0431/9048/5150/files/woviwazufurug.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_off00007a21.bin
04223a64875be1fdae73a156f41cc96f809b636e86632c4a519aa52dff832ec1
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A21 5648 bytes
font_01_sfnt_off00008d20.bin
b74439bb6d30676d3de22d22f48c89ac185eb57e358e16c6300a5dcff203e10d
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D20 11528 bytes