Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fa19505e9cb12c5…

MALICIOUS

PDF

35.5 KB Created: 2020-08-20 06:32:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a177cdc6f5418be8ed59d94a05a47c6b SHA-1: 2d88babecb3b2f7e8591e2fe80f4d8cc9cd3c7f6 SHA-256: 7fa19505e9cb12c5b1162fe926911914f38dca0367ee46073de456f8dbe1085f
150 Risk Score

Malware Insights

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

The PDF contains a mass of external links, masquerading as a list of manufacturers, to a known malicious redirector. The primary malicious URL is https://ttraff.cc/pify?keyword=pvc+foam+sheet+manufacturers+in+china, which is designed to redirect users to further malicious content. The ML classifier strongly supports the malicious verdict.

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=pvc+foam+sheet+manufacturers+in+china
    • http://totosigi.magdalenamorataya.com/uploads/1/3/0/9/130969926/borazagadizewutuzek.pdf
    • http://zewevif.booksandspoons.com/uploads/1/3/2/6/132695471/rupukur.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98629167596.pdf
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/alginate_impression_material.pdf
    • https://cdn.shopify.com/s/files/1/0433/3699/0885/files/42856670263.pdf
    • https://cdn.shopify.com/s/files/1/0427/8393/2582/files/bebot.pdf
    • https://cdn.shopify.com/s/files/1/0428/6224/8095/files/pefaf.pdf
    • https://cdn.shopify.com/s/files/1/0433/1615/0427/files/xurofifebuvemasek.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sakemiribukewud.pdf
    • https://cdn.shopify.com/s/files/1/0446/3912/5667/files/calendario_basket_serie_a_2020.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18187133080.pdf
    • https://cdn.shopify.com/s/files/1/0432/1283/2931/files/32714167569.pdf
    • https://cdn.shopify.com/s/files/1/0432/8462/7624/files/suloz.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_off00004be2.bin
97a0175bd303f48fc2125904b73f58e77e637583c7c5b49564f8489e2794326b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BE2 5152 bytes
font_01_sfnt_off00005d4b.bin
b4ca3bd9ee41d2581a068f10aa40e8a6278ce73c7eb67b6e2dd2c1b510e682da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D4B 10580 bytes

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