Malicious PDF — malware analysis report

Static analysis result for SHA-256 c85aa44a51100f4f…

MALICIOUS

PDF

37.6 KB Created: 2020-08-12 22:42:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9b0a20986af96736948f98e56b6285e2 SHA-1: 19f3e35836b874a0a0eb91c766bd6697e32ce884 SHA-256: c85aa44a51100f4f8bbf41e6b446ff1af3b764b09f7b47ee4c57f1f8276c633e
150 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary malicious redirector URL identified as https://ttraff.cc/pify?keyword=mcps+school+calendar+2020+19+pdf. This indicates the document's purpose is to redirect users to potentially harmful content. The ML classifier strongly supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/pify?keyword=mcps+school+calendar+2020+19+pdf
    • http://files.norcalpomeranians.com/uploads/1/3/2/3/132303353/8b8e9e57.pdf
    • http://files.carsongolf.net/uploads/1/3/2/8/132814476/6633457588c.pdf
    • http://tokazape.webfirethemes.com/uploads/1/3/1/1/131164250/677d34aa.pdf
    • http://files.bhawanimaa.org/uploads/1/3/1/4/131437123/1041355.pdf
    • https://cdn.shopify.com/s/files/1/0432/9419/5870/files/26319141144.pdf
    • https://cdn.shopify.com/s/files/1/0428/4098/1670/files/76474522409.pdf
    • https://cdn.shopify.com/s/files/1/0430/9866/9220/files/nomezajimazow.pdf
    • https://cdn.shopify.com/s/files/1/0446/9476/5724/files/axolotl_care_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0434/0459/1255/files/losimoxazavuxisesixosud.pdf
    • https://cdn.shopify.com/s/files/1/0429/1523/3959/files/avengers_watch_online.pdf
    • https://cdn.shopify.com/s/files/1/0427/8406/3654/files/49025463469.pdf
    • https://cdn.shopify.com/s/files/1/0431/3445/1874/files/fifalum.pdf
    • https://cdn.shopify.com/s/files/1/0433/5314/5495/files/66281265626.pdf
    • https://cdn.shopify.com/s/files/1/0438/2107/2546/files/namakam_chamakam_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/5286/6455/files/1982_yamaha_maxim_750.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046a4.bin
48ffb249165c09d5e16e85f6d6f00a446c616f5b9b846546fe3b76813fc59de4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x46A4 5388 bytes
font_01_sfnt_off000058dc.bin
73466cbc7b9a86dd21896ca47a0a56ce7813f071066255bb3f1e01299e2769df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58DC 10208 bytes
font_02_sfnt_off00007ba2.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BA2 4324 bytes

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