Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fbf8c606da24316…

MALICIOUS

PDF

42.6 KB Created: 2020-08-31 17:28:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 10c7a16f34a82bc51708022419f97e83 SHA-1: 358c640fad1bcb13bfb46dee9a477c12676bb15d SHA-256: 0fbf8c606da243165ef113b050e1feab7399985b02b6054074ae8d4b6cdfdbbf
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that point to a known malicious redirector infrastructure, specifically `https://ttraff.me/pify?keyword=aeroporto+genova+informazioni+voli`. This suggests an attempt to direct users to malicious content under the guise of flight information. The PDF also hosts a large number of external links, indicating a potential link farm or SEO manipulation tactic. No scripts were extracted, but the presence of malicious URLs and the ML classification strongly indicate a malicious intent.

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.me/pify?keyword=aeroporto+genova+informazioni+voli
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/b8c837_e43635ec5705449cb025bf6588570ddf.pdf
    • https://static.usrfiles.com/ugd/b8c837_5fd98ab8379b47ddb5271056b0ae102f.pdf
    • https://static.usrfiles.com/ugd/48d9a1_8887045ee09342528f72f6a4b569f6da.pdf
    • https://cdn.shopify.com/s/files/1/0433/6756/3418/files/56175932781.pdf
    • https://cdn.shopify.com/s/files/1/0440/4733/5574/files/byobu_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/3912/9751/files/fun_language_arts_worksheets_for_middle_school.pdf
    • https://cdn.shopify.com/s/files/1/0428/8197/4435/files/xupovuvifuzufevuteluxot.pdf
    • https://cdn.shopify.com/s/files/1/0432/3406/6594/files/mafitefolupowire.pdf
    • https://cdn.shopify.com/s/files/1/0435/9025/4749/files/49257537183.pdf
    • https://cdn.shopify.com/s/files/1/0451/4437/5450/files/53048829586.pdf
    • https://cdn.shopify.com/s/files/1/0438/5597/0464/files/dogodopisomezumubuxevojen.pdf
    • https://cdn.shopify.com/s/files/1/0437/0789/1863/files/palmistry_books_free.pdf
    • https://cdn.shopify.com/s/files/1/0435/8550/3393/files/ctet_solved_question_paper_2020_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/7316/6744/files/34328551126.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/voferolunomuferedoxiwu.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066ca.bin
fedc6ea3d2d7470a6bcb151f1b6e1d1fb9890af206d31cba4b83565fb833b0d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66CA 5140 bytes
font_01_sfnt_off0000784b.bin
e1b78dc1a11f54466f510b9b65a9c333da993e6ddf88c8e5e5915e4656486e07		 pdf-font-stream PDF embedded font (sfnt) at offset 0x784B 11280 bytes

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