Malicious PDF — malware analysis report

Static analysis result for SHA-256 292079f4e8330dc7…

MALICIOUS

PDF

74.9 KB Created: 2020-08-02 13:00:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 37a4b9dec63f522aac76c3c987e430b6 SHA-1: 81bd5842442bfe6db12620bb1585f2b325c7ffc6 SHA-256: 292079f4e8330dc7d7d971ad6563b708f94d58473e74195254789247fd2a28ff
152 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious domain, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the text 'Warcraft roleplaying game pdf' and the malicious URL, suggesting a lure. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many of which point to benign Shopify URLs, likely as a distraction or to appear legitimate. The ML_NYX_PDF_MALICIOUS heuristic strongly supports the malicious classification.

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.com/pify?keyword=warcraft+roleplaying+game+pdf
    • http://files.kaimarafghans.com/uploads/1/3/1/4/131438692/lurazize-pelegag.pdf
    • http://files.magnumconcretecorp.com/uploads/1/3/1/3/131398036/zadujimozuzegasodon.pdf
    • http://files.nubianquilters.org/uploads/1/3/0/7/130775231/puzadepa-wunovonufipe.pdf
    • http://files.47mainwalpole.com/uploads/1/3/2/6/132681836/3695398.pdf
    • https://cdn.shopify.com/s/files/1/0432/6968/5414/files/bafamevugolefirowubidipan.pdf
    • https://cdn.shopify.com/s/files/1/0431/2072/2080/files/1082792321.pdf
    • https://cdn.shopify.com/s/files/1/0430/7995/8679/files/32991118312.pdf
    • https://cdn.shopify.com/s/files/1/0432/7368/3100/files/jixofuzonutem.pdf
    • https://cdn.shopify.com/s/files/1/0431/0899/1140/files/tekojawolide.pdf
    • https://cdn.shopify.com/s/files/1/0437/4292/0869/files/sanekuze.pdf
    • https://cdn.shopify.com/s/files/1/0432/9930/7673/files/57847016008.pdf
    • https://cdn.shopify.com/s/files/1/0434/4964/7261/files/15098167622.pdf
    • https://cdn.shopify.com/s/files/1/0437/5032/6421/files/reletevumumunefokidujaz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35031547028.pdf
    • https://cdn.shopify.com/s/files/1/0428/0002/1667/files/kifowezadesevatuli.pdf
    • https://cdn.shopify.com/s/files/1/0429/8434/1657/files/zemobetufofito.pdf
    • https://cdn.shopify.com/s/files/1/0431/0971/2023/files/97188977236.pdf
    • https://cdn.shopify.com/s/files/1/0433/2827/4587/files/rodefezup.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_off0000e88a.bin
f0a351b5f4af284d63c091ecefdb6d854e7330d27974d0e50227b9ab76076b30		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE88A 5412 bytes
font_01_sfnt_off0000faf5.bin
878a2bc42a0ba5ac4e7a936eb0b1e481b7fbe5137dbacdaeb6c388b058b1f698		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFAF5 10388 bytes

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