Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb1624adabec85a1…

MALICIOUS

PDF

63.7 KB Created: 2020-09-01 23:04:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c10ad66c8e2af4c2add4e9721595ff8e SHA-1: ffc71317d679f42d386331c1d45f1c95aae45666 SHA-256: fb1624adabec85a17a1599abd13142455725cbe63c94b5c7a8ea183ad08d3a03
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The embedded URL `https://ttraff.com/pify?keyword=chirutha+songs++ram+charan` is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL, suggesting it is the primary lure. No scripts were extracted, and the PDF structure itself does not indicate specific exploit techniques beyond redirection.

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.com/pify?keyword=chirutha+songs++ram+charan
    • https://cdn.shopify.com/s/files/1/0433/3587/6776/files/possessivartikel_im_dativ_bungen.pdf
    • https://cdn.shopify.com/s/files/1/0430/8228/5216/files/ikea_catalog_1993.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1641/files/47816430520.pdf
    • https://cdn.shopify.com/s/files/1/0430/9313/1425/files/kaabil_full_movie_in_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0427/7963/9967/files/bikorowimezu.pdf
    • https://cdn.shopify.com/s/files/1/0435/1610/0762/files/free_printable_letter_d_worksheets_for_preschool.pdf
    • https://cdn.shopify.com/s/files/1/0435/1570/7551/files/dabilavipixe.pdf
    • https://cdn.shopify.com/s/files/1/0443/6996/9308/files/naserixubanefivosixiw.pdf
    • https://cdn.shopify.com/s/files/1/0431/5335/9005/files/29076956360.pdf
    • https://cdn.shopify.com/s/files/1/0434/5865/8456/files/suxinadofe.pdf
    • https://static.usrfiles.com/ugd/956c05_b471678f1e264bbaaa8fdc673d5d4a34.pdf
    • https://static.usrfiles.com/ugd/5de1df_65146924c0e843d3be26e9d6a77cbe4e.pdf
    • https://static.usrfiles.com/ugd/b8c837_b4d8fb8f5c4e45459aabfa5bcd063d47.pdf
    • https://static.usrfiles.com/ugd/b8c837_ee6500cddca948f0a9db217b15bce96f.pdf
    • https://static.usrfiles.com/ugd/739437_d03016e5eaf04486a749aab9f2fd9dc9.pdf
    • https://static.usrfiles.com/ugd/b910ae_63b28e5969234eb28e36f452197e66b3.pdf
    • https://static.usrfiles.com/ugd/de60da_728004dadb734484aee6c6a99722dc9a.pdf
    • https://static.usrfiles.com/ugd/510a18_70e37102ec3a45c8af06588737de4c73.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/
    • https://cdn.shopify.com/s/files/1/0443/6996

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008d53.bin
4b379cb09e7216a34d91e561b91bc8150f2c19a3f4d969f0a9e51d4460b22be5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D53 4968 bytes
font_01_sfnt_off00009e02.bin
ea67446fd45235bc9bccf0fb03124983643ac91be62cf06653b658125aa316f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E02 14696 bytes
font_02_sfnt_off0000cbcd.bin
e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCBCD 16164 bytes
font_03_sfnt_off0000e0e4.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE0E4 4324 bytes

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