Malicious PDF — malware analysis report

Static analysis result for SHA-256 a397b00d6ae3a3b7…

MALICIOUS

PDF

39.7 KB Created: 2020-04-02 02:31:50 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 75223dd13572a28f789f62cbe787410e SHA-1: e42a32a62484d81ac2ef26a55d9d221258972502 SHA-256: a397b00d6ae3a3b78650e3a74ef60a03981de61ca1394e252657255cff067caf
70 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links are likely intended to direct users to malicious websites, potentially for phishing or malware distribution. The document body, though heavily corrupted, contains fragments of URLs and text that reinforce this interpretation. 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.
  • 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://alexandermgmtnyc.com/uploads/1/3/0/5/130589104/130589104.html#aula+internacional+1+nueva+edici%C3%B3n+%E2%80%93+libro+del+profesor
    • http://trekkiebuildingprojects.com/uploads/1/3/1/1/131164425/b53f224836e612.pdf
    • http://aquirelotb.com/uploads/1/3/0/3/130379162/6489520.pdf
    • http://almacenesmetro.com/uploads/1/3/0/3/130323962/wuwatojaza.pdf
    • http://sanlopaheathcare.com/uploads/1/3/0/2/130272083/morobunidolawepu.pdf
    • http://caneelcorp.com/uploads/1/3/0/6/130621628/8372671.pdf
    • http://hullcityanalysis.com/uploads/1/3/0/9/130969774/putegujixusuto-rofexebewobere-juzobovabumu-limiko.pdf
    • http://farmplaceredirect.org/uploads/1/3/0/5/130540799/wokigaxi_digopevavelen_sewale.pdf
    • http://dualtutors.com/uploads/1/3/1/3/131379219/392782.pdf
    • http://adaptingbrains.com/uploads/1/3/0/5/130551325/9656042.pdf
    • http://kelbels.org/uploads/1/3/0/7/130774962/6211066.pdf
    • http://medstartconsulting.com/uploads/1/3/0/6/130620963/ed95a9a6.pdf
    • http://metersnelectronics.com/uploads/1/3/0/3/130313021/jewem_mesonu_lutilomo_genuv.pdf
    • http://bec-star.com/uploads/1/3/0/4/130435644/8804140.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_off00006e60.bin
b18b606212e80eda96f45530b4c2d90e2fa57160916c0fbe18aec29220e7d086		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E60 8576 bytes

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