Malicious PDF — malware analysis report

Static analysis result for SHA-256 9acf2f7b333938a8…

MALICIOUS

PDF

47.1 KB Created: 2020-08-27 18:24:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: af0674a8a2738769f8e1502891439e44 SHA-1: e18e457abdae1207eb0ee218897d0b84bf484fba SHA-256: 9acf2f7b333938a832f3d8d76bcdcd850506c0a26e22878608973034444a9727
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link farm and a specific redirector URL that is known to be malicious. The document body, though heavily obfuscated, contains text related to 'Hearts of iron 4 trainer' and the redirector URL, indicating a lure to download a trainer. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the malicious nature of the primary redirector. The ML_NYX_PDF_MALICIOUS score further supports the malicious classification.

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=hearts+of+iron+4+trainer
    • http://files.asnapoftime.com/uploads/1/3/1/8/131856186/dakulutivedusaximo.pdf
    • http://files.nuvisionconstruction.com/uploads/1/3/1/3/131398591/b986fdeb956fb7a.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52665001447.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8176/files/jiripifavesub.pdf
    • https://cdn.shopify.com/s/files/1/0431/8350/5570/files/91719865882.pdf
    • https://cdn.shopify.com/s/files/1/0431/9870/9918/files/fenebaxar.pdf
    • https://cdn.shopify.com/s/files/1/0435/1698/5498/files/super_smash_bros._rom_n64.pdf
    • https://cdn.shopify.com/s/files/1/0433/1870/6341/files/basic_terms_of_computer_networking.pdf
    • https://cdn.shopify.com/s/files/1/0433/1818/2041/files/family_assessment_tools_adalah.pdf
    • https://cdn.shopify.com/s/files/1/0431/5955/2166/files/cg_movies_2019.pdf
    • https://cdn.shopify.com/s/files/1/0435/4487/1063/files/termite_compliance_certificate_template.pdf
    • https://cdn.shopify.com/s/files/1/0434/5207/2088/files/zexurazu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1770/7425/files/xelutimunulerusogew.pdf
    • https://cdn.shopify.com/s/files/1/0430/6580/2905/files/48660736509.pdf
    • https://cdn.shopify.com/s/files/1/0428/0752/5542/files/nevodadukuter.pdf
    • https://cdn.shopify.com/s/files/1/0431/5463/6966/files/22311226610.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_off00007037.bin
1b009aae605f70b6ddf4c3eac845dee6fbf11e7f138846e72fe00f6d33bc18ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7037 4776 bytes
font_01_sfnt_off00008083.bin
2f29904d1fba0c090912a1f55eedad4fe76ce5bbca753650f4442e0440b384e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8083 15132 bytes

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