Malicious PDF — malware analysis report

Static analysis result for SHA-256 684381706b754f1a…

MALICIOUS

PDF

50.9 KB Created: 2020-08-22 00:59:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 755ce9902e48d64758e01eb2aed29a63 SHA-1: 90f2b52e8c7df9a49cecfd6c38eea33ef6ee35dc SHA-256: 684381706b754f1a9aa3fb53f02bde0b824df722edb601b954d1e1a4a0560df6
154 Risk Score

Malware Insights

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

The PDF contains numerous links, including one identified as a malicious redirector, which is a common tactic for phishing or malware distribution. The document body, though heavily obfuscated, contains text suggesting a lure for 'live sport apk android'. The presence of embedded URLs and the heuristic firing for 'PDF_MALICIOUS_REDIRECTOR_LINK' strongly indicate an attempt to redirect users to malicious content. No scripts were extracted, but the overall structure and link farm suggest a phishing or content-luring attack.

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.cc/pify?keyword=best+live+sport+apk+android
    • http://bixidub.312sle.com/uploads/1/3/0/8/130813612/rupikogede-xunewisopo-doxavumuwevibu-wiliraboso.pdf
    • http://dugaba.papajohnsfarm.com/uploads/1/3/2/6/132682663/551c73b4.pdf
    • http://files.gay-lesbian-retreats.com/uploads/1/3/2/6/132696018/vofugerepamosen-fupawejewuvizuf-feruvaf.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/5723/3576/files/fijirenukatagepologiwo.pdf
    • https://cdn.shopify.com/s/files/1/0446/1690/8963/files/zumanekorurimusutog.pdf
    • https://cdn.shopify.com/s/files/1/0434/4135/6967/files/biopsychology_books_pinel.pdf
    • https://cdn.shopify.com/s/files/1/0435/4097/1674/files/kabewevusadivel.pdf
    • https://cdn.shopify.com/s/files/1/0430/9480/2593/files/95554614266.pdf
    • https://cdn.shopify.com/s/files/1/0438/0993/1426/files/diccionario_biblico_completo_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0431/1888/7073/files/51538350166.pdf
    • https://cdn.shopify.com/s/files/1/0433/2955/2552/files/48038876302.pdf
    • https://cdn.shopify.com/s/files/1/0435/8746/9469/files/20602830602.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007f47.bin
74466d151cf07373106a21eb668850e3ff99e12faed0c5e3d51af04d187d610c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F47 5128 bytes
font_01_sfnt_off000090c2.bin
be348a22fe190728f1d360d8e10ea682a14f6dd4ddd02d80d69c8b9c0587fdb5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90C2 1972 bytes
font_02_sfnt_off00009a39.bin
fbe104c49b0b46de964100a096a930ffdf177710455f276cc59927cf863567cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A39 10652 bytes

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