Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f5a2c29296f32e2…

MALICIOUS

PDF

36.8 KB Created: 2020-03-07 09:58:03 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 1bc1f38fdbc3e349f4ea65819e4f815d SHA-1: a822d171b757a14edadfaa474692aae392918803 SHA-256: 9f5a2c29296f32e23dfa21a5d1cfeddcef40f539ad0ae715a13b51acf73e16f2
70 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, embedding numerous external URLs that likely lead to malicious content. The heuristic 'PDF_SEO_LINK_FARM' indicates a high volume of links, and the presence of a 'SE_DOWNLOAD_BUTTON' suggests a deceptive lure. No scripts were extracted, but the sheer number of outbound links points to a delivery mechanism for further compromise.

Heuristics 4

  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://a1374119xstreamtravel.xsideas.com/uploads/1/3/0/4/130479435/130479435.html#a+minor+blues+scale+notes
    • http://southernconcreteandshellllc.com/uploads/1/3/0/5/130541116/4529023.pdf
    • http://growthstudio.io/uploads/1/3/0/7/130776267/dofejuxod-rojif.pdf
    • http://melfb.com/uploads/1/3/0/6/130621511/a91c37.pdf
    • http://lakz.pamperpetcare.com/uploads/1/3/0/4/130483207/6172929.pdf
    • http://mancavemonday.com/uploads/1/3/0/8/130815482/xilexoledesunak-dasigenuja-gigawumidev-wevipokexaxov.pdf
    • http://kao-gourmet.com/uploads/1/3/0/7/130775917/puzemetozujosawa.pdf
    • http://autodiscover.renewablerelics.com/uploads/1/3/0/4/130435602/58d827022d.pdf
    • http://apacaim.org/uploads/1/3/0/7/130775267/luwux.pdf
    • http://lisairwinsmith.com/uploads/1/3/0/7/130738991/6591002.pdf
    • http://biscuitrollers.com/uploads/1/3/0/8/130813834/9a3c3338f1f154.pdf
    • http://swellcleaning.com/uploads/1/3/0/8/130813972/50df2be.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065d4.bin
14b82ce5698aae347e8e7663a97b034abdf8d6f3f0746f5b8559e0bb093427e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65D4 8000 bytes

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