Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8dc2a1473804746…

MALICIOUS

PDF

37.7 KB Created: 2020-08-27 21:51:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2770fb11126a86b10eb5f576f77c2863 SHA-1: 0f19464ec444784f1eb7c571dcbdc88d33fdfa96 SHA-256: c8dc2a1473804746c894351232ebab7a8c3c237d92cfd5db9bf614b39f3f0983
154 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, including one pointing to a known malicious redirector at 'https://ttraff.com/pify?keyword=hercules+1997+full+movie+online'. The document body, though partially corrupted, also contains this URL and other links to PDF files hosted on Shopify. This indicates a likely attempt to lure users to malicious sites under the guise of providing movie content. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=hercules+1997+full+movie+online
    • http://ruwej.stteresaschoolwarriors.com/uploads/1/3/2/8/132814337/8dbeb58.pdf
    • http://mogow.angelaadockter.com/uploads/1/3/2/6/132680835/844e34d74cb.pdf
    • http://files.lvflogreenvalleygardens.com/uploads/1/3/1/6/131636589/5482664.pdf
    • http://files.fordandfordins.com/uploads/1/3/1/4/131408204/sivurexujaful_fubisopisus_fukebemaji_tidipir.pdf
    • http://files.rocksolidarchery.com/uploads/1/3/1/0/131070078/47ffab271e6ec.pdf
    • https://cdn.shopify.com/s/files/1/0432/7201/1931/files/29670299711.pdf
    • https://cdn.shopify.com/s/files/1/0427/9386/1279/files/67652442748.pdf
    • https://cdn.shopify.com/s/files/1/0462/1438/1722/files/cinemelody_telugu_2018.pdf
    • https://cdn.shopify.com/s/files/1/0431/7878/6965/files/reviruwonero.pdf
    • https://cdn.shopify.com/s/files/1/0434/5613/5334/files/83960412297.pdf
    • https://cdn.shopify.com/s/files/1/0436/0473/8206/files/create_sql_table_from_excel_spreadsheet.pdf
    • https://cdn.shopify.com/s/files/1/0429/5557/1356/files/30615808153.pdf
    • https://cdn.shopify.com/s/files/1/0433/4764/0469/files/motor_oil_guide.pdf
    • https://cdn.shopify.com/s/files/1/0434/2228/5976/files/49291146604.pdf
    • https://cdn.shopify.com/s/files/1/0434/6816/1176/files/55158094598.pdf
    • https://cdn.shopify.com/s/files/1/0431/5394/8836/files/lodexivowusotuvopetesex.pdf
    • https://cdn.shopify.com/s/files/1/0437/1064/4377/files/birthday_cake_with_name_priyanka.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_off000055cf.bin
f8d5306581bf7d03391a2c08ab492f0a16b8503c4cc4220593b90c27587c9a05		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55CF 5128 bytes
font_01_sfnt_off0000673f.bin
13ba2a3a802a0711d6fe39fd1a9dd76107d8f941f2866c1b8fa03bbfc167b363		 pdf-font-stream PDF embedded font (sfnt) at offset 0x673F 10192 bytes

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