Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c66d253d03fe9a6…

MALICIOUS

PDF

50.7 KB Created: 2020-05-24 18:42:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 816d713c6a92555b4702b787e81a44dc SHA-1: 4b9e2d40e37bfbd0775b9ec0727037f2fc580690 SHA-256: 2c66d253d03fe9a64c4b8e05d30f3e1b8817371f82a66427215484a349058bb6
62 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. These links point to various domains, suggesting a coordinated effort to redirect users. The primary URL, http://bailigongyulechengshoujiban.br3h.com/uploads/1/3/0/6/130621148/130621148.html#%25D8%25B3%25D9%2583%25D8%25B3+%25D8%25A8%25D9%258A%25D9%2588%25D8%25AA+%25D8%25AF%25D8%25B9%25D8%25A7%25D8%25B1%25D8%25A9+%25D9%2585%25D9%2582%25D9%2588%25D9%2584%25D8%25A9, appears to be part of this link farm. No scripts were extracted, but the structure indicates a malicious intent to drive traffic to potentially harmful websites.

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://bailigongyulechengshoujiban.br3h.com/uploads/1/3/0/6/130621148/130621148.html#%25D8%25B3%25D9%2583%25D8%25B3+%25D8%25A8%25D9%258A%25D9%2588%25D8%25AA+%25D8%25AF%25D8%25B9%25D8%25A7%25D8%25B1%25D8%25A9+%25D9%2585%25D9%2582%25D9%2588%25D9%2584%25D8%25A9
    • http://learnwithag.com/uploads/1/3/0/5/130551366/948c2.pdf
    • http://shirts2atee.com/uploads/1/3/1/3/131384401/pedevujuwedo.pdf
    • http://centrojazzalba.com/uploads/1/3/1/4/131407537/bf6752e6.pdf
    • http://luxeodysseyy.voyagerwebsites.com/uploads/1/3/0/2/130271057/wegikorela-waduxapazijolu-mobumiwoludif.pdf
    • http://tomsfood.com/uploads/1/3/0/7/130775352/86d4131c44.pdf
    • http://all-forlove.com/uploads/1/3/0/5/130588216/2190432.pdf
    • http://alarra.com/uploads/1/3/1/8/131856801/972f52.pdf
    • http://wakandanchamber.com/uploads/1/3/1/4/131413718/devoxijarubu.pdf
    • http://armentasvisitationmonitoring.com/uploads/1/3/0/8/130874102/eba4425204e34.pdf
    • http://dfgmediagroup.org/uploads/1/3/0/9/130969080/9900665.pdf
    • http://clearwatergrillcatering.com/uploads/1/3/1/4/131438110/wesexizegulo_kamirapan.pdf
    • http://autodiscover.ultraexteriors.net/uploads/1/3/0/3/130379169/737f3c5.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
stream_002_off00006ad3.bin
603db47bccd209e7ac6cd9b1ba21ec3667c09e16261cd7b1a34307c21cba0df8		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6AD3 30172 bytes
font_01_sfnt_off0000a071.bin
1f65e820fdece119adcf980ff63512a50d2b4970009eceef474715bf2866bfe3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA071 8632 bytes

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