Malicious PDF — malware analysis report

Static analysis result for SHA-256 1018942f01f0c235…

MALICIOUS

PDF

69.2 KB Created: 2020-03-23 14:29:57 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: cdc6ea858ceb79f4bb317e7df8c2d4c2 SHA-1: 0c61787226ad0acfb9e98e851e9ebf188b5a39c9 SHA-256: 1018942f01f0c23535ff941076eeca84f70cd29553e69f12b31da4027104b24a
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by an ML classifier and contains a large number of external links, many of which appear to be SEO-optimized PDF gateways. One of the embedded URLs, 'http://luxbiteonline.com/uploads/1/3/0/5/130589299/130589299.html#sap+solution+manager+7.1+charm+configuration+guide', suggests a lure related to SAP Solution Manager. The presence of numerous links and the ML classification strongly indicate an attempt to redirect users to malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://luxbiteonline.com/uploads/1/3/0/5/130589299/130589299.html#sap+solution+manager+7.1+charm+configuration+guide
    • http://fxtorrance.com/uploads/1/3/0/7/130740572/112266.pdf
    • http://savialja.com/uploads/1/3/0/8/130874090/pojatojujulij-madefof-xidelo-visutafapus.pdf
    • http://blackluxeexperience.com/uploads/1/3/0/4/130435876/5262263.pdf
    • http://ordernow-mexicali-pizzatreat.com/uploads/1/3/0/6/130640172/4312235.pdf
    • http://putaneggonitcookbook.com/uploads/1/3/0/5/130542780/3075300.pdf
    • http://kateluvsbeauty.com/uploads/1/3/0/5/130539016/6e661bb0.pdf
    • http://lamarinadarestaurant.com/uploads/1/3/0/6/130603823/210441c0.pdf
    • http://wordpressdevelopmentnewyork.com/uploads/1/3/0/3/130324236/8ebb0b9.pdf
    • http://www.tamagucci.shop/uploads/1/3/0/2/130289476/naloxujon-xalevexaj.pdf
    • http://mx.4therestofus.org/uploads/1/3/0/2/130289232/9702707.pdf
    • http://verdantlorrainedev.com/uploads/1/3/0/6/130639972/1720240.pdf
    • http://gatepariksha.com/uploads/1/3/0/2/130273801/bivis.pdf
    • http://nguyenassociatescpa.com/uploads/1/3/0/9/130969211/kutof-legawuru.pdf
    • http://surgicoordinator.net/uploads/1/3/0/6/130604874/673606.pdf
    • http://thundervalleyart.com/uploads/1/3/0/4/130488834/wemizu.pdf
    • http://www.chadjoinerallstate.com/uploads/1/3/0/4/130476721/xuruxarikipezojefap.pdf
    • http://www.sexwisdomspirit.com/uploads/1/3/0/5/130542902/nijozavarel-rizezazifo.pdf
    • http://www.hampton-market.com/uploads/1/3/0/6/130621576/pidole_rixemizoz_xanofelanidilar.pdf
    • http://estradarojas.com/uploads/1/3/0/6/130621305/katujo.pdf
    • http://rajaampatdiveguide.com/uploads/1/3/0/7/130775145/rebawuvaponik_bitenega_sekibenatu_xapuf.pdf
    • http://mail.frenchtwistboutique.com/uploads/1/3/0/4/130483632/eb2eab9ec3b.pdf
    • http://tonyjamesonline.com/uploads/1/3/0/3/130323449/c5686d4.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • 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/
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicense

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db5c.bin
3bc545c0231890ddfcd27a56d24210528578b25c5b4f3f705746a0368bad1fd1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDB5C 8540 bytes
font_01_sfnt_off0000fc4d.bin
e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC4D 2652 bytes

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