Malicious PDF — malware analysis report

Static analysis result for SHA-256 e077a709ed2424b0…

MALICIOUS

PDF

35.3 KB Created: 2020-07-08 15:22:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3f5ac1127de06959012338dab888840d SHA-1: 69900205356a1282d24fdc918b46378ce7fa178b SHA-256: e077a709ed2424b00f10b0b9a3d1672118856bf1fbc5ff32df18bf88da5eb875
120 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, many of which point to a link farm designed for SEO manipulation. One prominent link redirects to a known malicious URL, suggesting a phishing or malware distribution attempt. The document body contains garbled text but includes the target URL, reinforcing the malicious intent.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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 https://ttraff.cc/wb?keyword=acca%20paper%20f1%20accountant%20in%20business%20pdf
    • http://files.blog.saradeckard.com/uploads/1/3/2/6/132695572/1108863.pdf
    • http://files.livingatthedistillery.com/uploads/1/3/1/8/131856518/kelopiwo_kijebumuzor_zakinijewegekis.pdf
    • http://files.dearborn411.com/uploads/1/3/2/7/132740860/xokagilo.pdf
    • http://files.lknailsandbeauty.co.uk/uploads/1/3/2/6/132681938/wovaxale.pdf
    • http://files.unwrappingstress.com/uploads/1/3/1/3/131398134/3639002.pdf
    • http://files.908sown.com/uploads/1/3/0/7/130739658/1aced2e326.pdf
    • http://files.5ivezero.com/uploads/1/3/1/4/131437538/boxuzuzege-jamov-susaxozokusonir.pdf
    • http://files.proyecto1867.com/uploads/1/3/2/3/132302913/mozolejemi-vexiramiga-leselu.pdf
    • http://files.christinebrumbaughdesign.com/uploads/1/3/1/4/131407898/lutojosu_gadizuzin_lebejirotivipi_gosagugukomavu.pdf
    • http://files.oceansedgeediting.com/uploads/1/3/0/9/130969503/dojitosoxaposud.pdf
    • https://medafelenuj.files.wordpress.com/2020/07/jegukufinakubefejob.pdf
    • https://zixator.files.wordpress.com/2020/06/fegigove.pdf
    • https://migapilib.files.wordpress.com/2020/06/81918924155.pdf
    • https://zodokujuxo748596736.files.wordpress.com/2020/06/87506169573.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_off00004d98.bin
d5d9da4d1283dc7ab744d8c49ff1495cf99bcf3bc98d8abdd1064dbb1c50c525		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D98 5180 bytes
font_01_sfnt_off00005f37.bin
d3f27a7f8409c602e570e6f70549acb83fe15119ca8d36c02e8a29cb8b0d7739		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F37 9700 bytes

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