Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a10e76c1672c3a9…

MALICIOUS

PDF

37.9 KB Created: 2020-08-28 21:22:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a7bfed7bdb48bdeecdf5f3a7e0a3e647 SHA-1: 42965e70c24dcbd41696a86ce7213dac37a6694a SHA-256: 2a10e76c1672c3a9008e47ffcdfe3bdb6d3213a8946e8915ac835fb5b653ed9c
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to a URL that appears to be a lure for downloading a movie. The document body, though heavily obfuscated, contains text related to movie downloads and the malicious URL. The presence of a PDF link farm heuristic further suggests an attempt to distribute malicious content.

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/wix?keyword=this+means+war+full+movie+free+downl
    • https://cdn.shopify.com/s/files/1/0464/9127/1320/files/28888302285.pdf
    • https://cdn.shopify.com/s/files/1/0432/6909/5590/files/39442952366.pdf
    • https://cdn.shopify.com/s/files/1/0431/8350/5562/files/xizigawanekijunidetufu.pdf
    • https://static.usrfiles.com/ugd/b8c837_c9f6869b972445329dbd2fbf0133938f.pdf
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/nefodirumasimujokesozu.pdf
    • https://cdn.shopify.com/s/files/1/0434/2494/0184/files/oracle_business_intelligence_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0432/0854/0324/files/ate_ve_su_2.pdf
    • https://cdn.shopify.com/s/files/1/0429/6074/8695/files/joxoluzibutefibapoko.pdf
    • https://cdn.shopify.com/s/files/1/0429/7188/9817/files/kendo_grid_footer_template_style.pdf
    • https://static.usrfiles.com/ugd/b8c837_5689eced90bd429ca9020d6800e11d52.pdf
    • https://static.usrfiles.com/ugd/b8c837_169ef3c8b5bf44cd98003b3c48c365e9.pdf
    • https://static.usrfiles.com/ugd/b8c837_d83fa47f809d49b995d078fd06782ada.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_off00004a4d.bin
b19bd5fe9cc231203782a39b3ac655fbf4ad30284d0748c45298b9ce27dec708		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A4D 5052 bytes
font_01_sfnt_off00005b51.bin
f3de59f4dc7504c97cdfffe8de0cb0f3fa3d55722fe5fb4b52ebfe5765f1f995		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B51 10000 bytes
font_02_sfnt_off00007cfd.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CFD 4324 bytes

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