Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0b7404e038a0c57…

MALICIOUS

PDF

42.9 KB Created: 2020-04-01 18:15:54 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 06f3930ef96bcbd7f3064cf531591fd6 SHA-1: 9ccf62d9da4c9b8a974a8b055e3eaf09e2d70c6f SHA-256: e0b7404e038a0c57530e565c81254ea91df60dac1c58f9ab6297f9d44925a7db
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted, but the sheer volume of outbound links suggests a malicious intent to redirect the user or manipulate search engine results.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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
  • 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://newtownusa.net/uploads/1/3/0/5/130550748/130550748.html#12+street+rag+guitar+tab
    • http://buffalomiksang.com/uploads/1/3/1/3/131380868/pivafatenigud.pdf
    • http://elvination.com/uploads/1/3/0/5/130539092/6409666.pdf
    • http://jiur.org/uploads/1/3/1/3/131381675/salujipojabevawup.pdf
    • http://wyjinvestment.com/uploads/1/3/0/4/130436362/4325462.pdf
    • http://supremecupcakez.com/uploads/1/3/0/7/130775368/a1a5cd7e9fd.pdf
    • http://timmax-guide.com/uploads/1/3/0/8/130814161/d186e.pdf
    • http://thewaveindustries.net/uploads/1/3/1/4/131437236/jutabasewekutalogeb.pdf
    • http://everythingdiscountedws.com/uploads/1/3/0/6/130621357/3675799.pdf
    • http://leannephilip.com/uploads/1/3/0/5/130589036/joxinatonom-dusobiselo-mujusirog-gurexegajajefo.pdf
    • http://www.cbefulfillment.com/uploads/1/3/1/3/131379608/mofukisemutesexir.pdf
    • http://dougpickeringfurniture.com/uploads/1/3/0/5/130540928/677d6.pdf
    • http://tapsalteeriee.com/uploads/1/3/0/4/130478868/6922143.pdf
    • http://homefromhomebandbwinchester.com/uploads/1/3/0/5/130589097/7611835.pdf
    • http://mail.foodforsenses.com/uploads/1/3/0/4/130489220/58782.pdf
    • http://dadfinitely.com/uploads/1/3/0/5/130551090/492fa1ab60.pdf
    • http://p4partyproductions.com/uploads/1/3/0/8/130813887/659854.pdf
    • http://chiccamammadesigns.com/uploads/1/3/0/5/130546237/pofubamix_juwerame_jazoloxina_lolazutegolovu.pdf
    • http://mytortilladora.com/uploads/1/3/0/3/130313426/3c9fdb8.pdf
    • http://roadtripmichigan.org/uploads/1/3/0/8/130814763/0ba950cb02242.pdf
    • http://citychoicerealtyservices.com/uploads/1/3/1/3/131380539/loperolezadalit.pdf
    • http://mouserphotography.com/uploads/1/3/1/4/131408328/rukafup.pdf
    • http://thetravelside.com/uploads/1/3/1/1/131164538/239d062d6b3acf.pdf
    • http://awesomecraftlideral.com/uploads/1/3/0/6/130603913/5e116b.pdf
    • http://katiecrawfordphotography.com/uploads/1/3/0/7/130740166/4274907.pdf
    • http://capitalhillmassagetherapyschool.com/uploads/1/3/1/1/131163669/fenuz.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_off00007be0.bin
a7a66ec26a28f96e394e1c7736e9fabf9de549716d8c0cf16e7ace4ae1f895cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BE0 9204 bytes

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