Malicious PDF — malware analysis report

Static analysis result for SHA-256 646d12592c27c216…

MALICIOUS

PDF

36.8 KB Created: 2020-03-14 20:45:14 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5d32704a9e77aa6d09c764f4890b6d6a SHA-1: c7eb46b6a44c5971a2036069c646d995e089e308 SHA-256: 646d12592c27c216ebdd204c490ad944efbeaf895c6ca213d3873485f40f0b6f
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The PDF contains a large number of embedded links to external websites, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also strongly flagged this PDF as malicious. The embedded links likely serve to redirect users to malicious content or to manipulate search engine rankings.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://dedic-11-surveilance.pleasingfood.com/uploads/1/3/0/6/130639484/130639484.html#centre+de+gravit%C3%A9+triangle+formule
    • http://74-123-78-94.mgwnet.com/uploads/1/3/0/6/130639916/kewin_tomunezidewala.pdf
    • http://rebeccalynnjewellery.com/uploads/1/3/0/6/130639177/gasupebigega_ziwotofusezew_poxux.pdf
    • http://saramorrart.com/uploads/1/3/0/5/130589400/duvevidopogetamojab.pdf
    • http://www.humactive-formation.com/uploads/1/3/0/6/130604313/bonufumu-zamusumu-dutivi.pdf
    • http://themarket.services/uploads/1/3/0/6/130620612/vadeju-mosusopazijer-zuneziranububi-xelefuxivasu.pdf
    • http://prgwellness.com/uploads/1/3/0/8/130814353/55eb192.pdf
    • http://mx.besomeoneco.com/uploads/1/3/0/5/130543467/gubakaw_pevipa_lafebebegune_xowalonud.pdf
    • http://asdar.net/uploads/1/3/0/7/130738781/sumipodumipozev.pdf
    • http://morlok.com/uploads/1/3/0/5/130550847/669d58d5233d59b.pdf
    • http://artemdeev.pro/uploads/1/3/0/2/130288600/vojogikimizub_gowileze.pdf
    • http://hkscmi.com/uploads/1/3/0/2/130274371/taxefadewogedutubir.pdf
    • http://motorshoweast.com/uploads/1/3/0/7/130775511/5cb7378e7742eb.pdf
    • http://ccpcoastalbend.org/uploads/1/3/0/3/130323968/zejux.pdf
    • http://hostmaster.saloneantiriciclaggio.ch/uploads/1/3/0/7/130739970/f726138.pdf
    • http://www.beachesyouthhostel.com/uploads/1/3/0/8/130874296/jelefaririxeliw.pdf
    • http://dns.21daychallenge.net/uploads/1/3/0/4/130490461/wekevazowop_kipezivumaz_xoxuridilebujo.pdf
    • http://contentbyjulie.com/uploads/1/3/0/4/130489958/f451c1ee.pdf
    • http://nileformwork.com/uploads/1/3/0/6/130604397/91beff111b2a7.pdf
    • http://www.joyartandhealing.com/uploads/1/3/0/6/130621214/kerizogi_geziwegilu.pdf
    • http://nightcuddler.com/uploads/1/3/0/8/130813372/897909b.pdf
    • http://museless.net/uploads/1/3/0/3/130323285/027a2.pdf
    • http://decalremovalkit.com/uploads/1/3/0/6/130621195/filuxi.pdf
    • http://mwilkinson91.com/uploads/1/3/0/6/130620353/wubopela_sipani_fozawexomavewad.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_off000064d4.bin
383c12b96792f0ffb1160d747925384b192b2aa07e6b0f8a4cb527c898582756		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64D4 8444 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.