Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1b233c60df0c28e…

MALICIOUS

PDF

45.2 KB Created: 2020-03-25 07:48:58 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 59b919740d908ef3ad46d538bc3ac427 SHA-1: ad7b9b945700c6c73d9ccb719321e7638ac6ca02 SHA-256: f1b233c60df0c28e10114c59e658c0449817d46289ef4eba798553de0c0a38f9
82 Risk Score

Malware Insights

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

The PDF document impersonates a cloud file-sharing service, a common lure for phishing or malware delivery. It contains a large number of external links, many pointing to PDF files on various domains, suggesting a link farm or a method to distribute malicious content. The primary heuristic indicates a 'Cloud document impersonation lure', and the presence of numerous external URIs supports this. No scripts were extracted from this sample.

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.
  • Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
    Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
  • 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://mavodafoundation.org/uploads/1/3/0/2/130288458/130288458.html#maguire+et+al+quizlet
    • http://mordecaimatters.com/uploads/1/3/0/6/130604667/7307014.pdf
    • http://mta-sts.mail.handsignierte-buecher.net/uploads/1/3/0/6/130621357/b35333c64e93b7.pdf
    • http://www.emilyvulcano.com/uploads/1/3/0/6/130620936/jijop.pdf
    • http://propertyhorsei.com/uploads/1/3/0/9/130969813/falanunamo-wowuxifewixan-foxakejorigezax-gafefifixigod.pdf
    • http://leasepurchasephilahomes.com/uploads/1/3/0/5/130540266/1170576.pdf
    • http://newbernapp.com/uploads/1/3/0/3/130323424/4961478.pdf
    • http://martape.com/uploads/1/3/1/0/131070633/belolerozuluwif_sikedarikosem_torafusi.pdf
    • http://www.elegance-dessert-bar.com/uploads/1/3/0/5/130588394/xanomugax.pdf
    • http://faith-lift.com/uploads/1/3/0/4/130436458/917f7b.pdf
    • http://everybodylovesrita.com/uploads/1/3/0/5/130540501/742bbf355337.pdf
    • http://blackcatsculpture.com/uploads/1/3/0/5/130589286/supun-koniber-gegutufanafowox.pdf
    • http://therealstage.com/uploads/1/3/0/5/130589049/5384650.pdf
    • http://kccannabissymposium.org/uploads/1/3/0/3/130323449/38391f.pdf
    • http://sweetrepeatsfd.com/uploads/1/3/0/3/130323167/pobivomisa-gawerabefaziva-kegasolerote-xedabovena.pdf
    • http://www.southerncrosfloorsanding.com/uploads/1/3/0/6/130604027/6584035.pdf
    • http://ontapotteryvillage.xyz/uploads/1/3/0/4/130435611/pemisenukeju_rumexiza.pdf
    • http://bourkesbestbites.org/uploads/1/3/0/7/130740622/3055344.pdf
    • http://stjosephelkoym.com/uploads/1/3/0/9/130969973/fupujomanijufiwuwa.pdf
    • http://semilladecristo.org/uploads/1/3/0/8/130873730/957718dfb0c00.pdf
    • http://fencingaberdeen.com/uploads/1/3/0/5/130539109/juwapizatubaxob.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_off000072d0.bin
61254413a98cb6f43669aef38a5816c400d9f6f252b94ea3f00e7cf673e72847		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72D0 8124 bytes
font_01_sfnt_off00009258.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9258 16036 bytes

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