Malicious PDF — malware analysis report

Static analysis result for SHA-256 c30d2f1907ec7dc3…

MALICIOUS

PDF

49.5 KB Created: 2020-08-21 22:59:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 229c54f651a7f1b85997ae3c6541594d SHA-1: 46cabad145e785e59e9be93696d5a6b106df8e50 SHA-256: c30d2f1907ec7dc32b0f0f56c563500ab1295353a109f969092bbff9117a324c
154 Risk Score

Malware Insights

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

The PDF contains a heuristic firing indicating it links to known malicious redirector infrastructure, specifically `https://ttraff.ru/pify?keyword=assassin+creed+pc+games+free`. The document body also contains this URL, alongside numerous other PDF links, suggesting a link farm or redirection tactic. The primary purpose appears to be to redirect users to potentially malicious content under the guise of offering free game downloads.

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.ru/pify?keyword=assassin+creed+pc+games+free
    • http://files.redolivestudios.com/uploads/1/3/2/7/132740277/7342845.pdf
    • http://files.roberttalksbusiness.com/uploads/1/3/2/6/132695746/dikedumixudi.pdf
    • https://cdn.shopify.com/s/files/1/0436/7086/4025/files/nopusikatovipisokanixo.pdf
    • https://cdn.shopify.com/s/files/1/0428/8941/2767/files/nulebapewidemerut.pdf
    • https://cdn.shopify.com/s/files/1/0439/1701/7243/files/steps_in_business_planning_process.pdf
    • https://cdn.shopify.com/s/files/1/0431/3782/6973/files/naruto_shippuden_season_10_english_dubbed.pdf
    • https://cdn.shopify.com/s/files/1/0433/7437/9164/files/ethnography_and_qualitative_design_in_educational_research.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26450106566.pdf
    • https://cdn.shopify.com/s/files/1/0429/4131/7276/files/zokojagonunese.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19252536586.pdf
    • https://cdn.shopify.com/s/files/1/0429/7113/6154/files/9599887113.pdf
    • https://cdn.shopify.com/s/files/1/0448/6764/9698/files/ghostscript_tiff_to.pdf
    • https://cdn.shopify.com/s/files/1/0430/7664/9124/files/18641677850.pdf
    • https://cdn.shopify.com/s/files/1/0433/1392/2206/files/52102873020.pdf
    • https://cdn.shopify.com/s/files/1/0431/4864/0418/files/8990778000.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_off0000773d.bin
8cc20dbc8cf17f064b52c219ddaf922e275130e0d79d3101315596084f60717a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x773D 5028 bytes
font_01_sfnt_off0000882b.bin
d62a0f2be6ce687f9198ae3c16ed9c708f57d2fe251e90bfca95ac6824f013b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x882B 10248 bytes
font_02_sfnt_off0000ab37.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAB37 4324 bytes

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