Malicious PDF — malware analysis report

Static analysis result for SHA-256 6290bddddc2fd994…

MALICIOUS

PDF

51.6 KB Created: 2020-09-10 23:10:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 358d46f96a771f677cd2cf230db1beb1 SHA-1: 2b776a1aba661f83ac2b5d39a6e8e1579ea614a9 SHA-256: 6290bddddc2fd994dcae9a6fde406f254b3afc0b02cda27a0c4b3a52c3863912
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.link/wix?keyword=commando+2+movie++tamilrockers'. This URL is embedded within the document's content, suggesting a lure to a malicious site. The presence of a PDF link farm heuristic further indicates malicious intent, likely for SEO manipulation or distributing further malicious content.

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.link/wix?keyword=commando+2+movie++tamilrockers
    • http://files.bodyprochiropractic.com/uploads/1/3/0/7/130740316/besaze.pdf
    • http://files.sportsimagephoto.com/uploads/1/3/1/8/131871633/74724068aa6eee.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/26481d_c53c19decb8540499633a88de3d80471.pdf
    • https://static.usrfiles.com/ugd/c34aa9_b81bcd7325b74832ae795a31fc7a4148.pdf
    • https://static.usrfiles.com/ugd/4f270c_fa55ccefd3754a9bb814052d7682452f.pdf
    • https://static.usrfiles.com/ugd/e2f7e1_f01b22b683f442dea68b961c055bc91d.pdf
    • https://cdn.shopify.com/s/files/1/0431/1914/9216/files/figures_of_speech_night_worksheet_answers.pdf
    • https://cdn.shopify.com/s/files/1/0437/7880/1822/files/3082250328.pdf
    • https://cdn.shopify.com/s/files/1/0432/3658/9730/files/33476308619.pdf
    • https://cdn.shopify.com/s/files/1/0433/9371/2286/files/39265537873.pdf
    • https://cdn.shopify.com/s/files/1/0434/3064/1826/files/degijexakomizabugexu.pdf
    • https://cdn.shopify.com/s/files/1/0430/4420/8797/files/user_guide_template_for_web_application.pdf
    • https://cdn.shopify.com/s/files/1/0431/1249/7303/files/biblical_archeology_review.pdf
    • https://cdn.shopify.com/s/files/1/0439/9549/6606/files/11013329310.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b37.bin
d1eddb5982c1983eb1e9d048f6c8c988fa0774c56b6015b6e5fbdf83a81b5fee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B37 5244 bytes
font_01_sfnt_off00007cf0.bin
b896cf420d67f16b10940560c9bed40f752809473624917c27c77593c290bb83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF0 1936 bytes
font_02_sfnt_off00008636.bin
275764685e085bf5709b311be10ab035ba2577a697692979ece021dd8682e8b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8636 10844 bytes
font_03_sfnt_off0000ab7a.bin
4bd16c8abd39118228c1571b0005d4eb3b3e943e572fd92a2a80cfcb7b749349		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAB7A 16164 bytes

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