Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac968452bdf04435…

MALICIOUS

PDF

40.8 KB Created: 2020-08-24 14:09:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 994ccf33febbcc992fe5619008b1ecd6 SHA-1: 26c9f533e4795be44f66d4c16747a068ebaa94e0 SHA-256: ac968452bdf044352efff03c7013ff44db75fa2687f7183e04ba0d9f93a1a1d1
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external PDF links, indicative of an SEO link farm or a distribution mechanism for malicious content. The primary malicious URL identified is a redirector. While no scripts were extracted, the sheer volume of embedded links suggests a coordinated effort to lure users to potentially harmful sites.

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=biedermann+und+die+brandstifter+szene+2+pdf
    • http://files.blissfulbodiesyoga.com/uploads/1/3/1/4/131437513/8162133.pdf
    • http://pezunulu.plymouthartstudio.com/uploads/1/3/0/7/130776791/e8a4125375163a.pdf
    • https://cdn.shopify.com/s/files/1/0428/3816/3623/files/demiberakiranuxariba.pdf
    • https://cdn.shopify.com/s/files/1/0433/7637/8014/files/zegasebona.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21533622499.pdf
    • https://cdn.shopify.com/s/files/1/0438/8575/6568/files/fumegoravesobe.pdf
    • https://cdn.shopify.com/s/files/1/0435/4883/5992/files/25608558145.pdf
    • https://cdn.shopify.com/s/files/1/0432/2390/8520/files/50139592969.pdf
    • https://cdn.shopify.com/s/files/1/0431/5031/1579/files/penosud.pdf
    • https://cdn.shopify.com/s/files/1/0438/3024/7584/files/1st_year_biology_text_book_download.pdf
    • https://cdn.shopify.com/s/files/1/0427/7121/8588/files/22168368972.pdf
    • https://cdn.shopify.com/s/files/1/0433/8227/6257/files/viripolirizipobadetiroki.pdf
    • https://cdn.shopify.com/s/files/1/0429/7628/0729/files/piweluxobaxaluzelipevebo.pdf
    • https://cdn.shopify.com/s/files/1/0427/8039/3639/files/abbyy_transformer_2020.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_off00005ea9.bin
0518a95349a62dbe64934a29f3b4183d755827c14c23d31b852bc140ec93c515		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA9 5528 bytes
font_01_sfnt_off00007159.bin
8cc64330e25dc997d66250d5534783989292f8d232262e0a131fa062ce548099		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7159 10540 bytes

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