Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d097701eabd199e…

MALICIOUS

PDF

66.2 KB Created: 2020-08-24 05:09:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 06c9790936f968e7790c14210fecc045 SHA-1: f7fa3a5a9cba184c73969bceefd8f4e04e2bf439 SHA-256: 5d097701eabd199e1730c8cf2fbd9333347d02c4a8c6ee526aa0ca389e479d73
154 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a critical heuristic identifying a link to known malicious redirector infrastructure at https://ttraff.com/pify?keyword=abhimaan+film+all+songs. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to direct users to malicious content. The presence of numerous other PDF links further indicates a link farm or redirection strategy.

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=abhimaan+film+all+songs
    • http://negagu.genpromotion.nl/uploads/1/3/0/7/130740117/600100221f.pdf
    • http://files.atmospheremartialarts.com/uploads/1/3/2/7/132740291/34df9636dde7.pdf
    • http://files.pinegrovecogop.org/uploads/1/3/0/8/130874318/de351d21ce3806f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/4652/6361/files/mubikaragor.pdf
    • https://cdn.shopify.com/s/files/1/0438/9348/9832/files/gokotede.pdf
    • https://cdn.shopify.com/s/files/1/0440/4166/6710/files/54836873774.pdf
    • https://cdn.shopify.com/s/files/1/0435/9431/7981/files/general_allotment_act_of_1887.pdf
    • https://cdn.shopify.com/s/files/1/0430/9018/2304/files/73738179682.pdf
    • https://cdn.shopify.com/s/files/1/0431/7777/1162/files/esame_celi_a1.pdf
    • https://cdn.shopify.com/s/files/1/0429/5481/7690/files/28724320158.pdf
    • https://cdn.shopify.com/s/files/1/0429/8512/8099/files/66312969715.pdf
    • https://cdn.shopify.com/s/files/1/0435/7757/3539/files/kigiwilevekaxonepivojunu.pdf
    • https://cdn.shopify.com/s/files/1/0432/8023/6702/files/46581379134.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a965.bin
446a94af5c85e9861a9ef9fa3e6aae531acc0184b255782e1696456f8e18f161		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA965 5216 bytes
font_01_sfnt_off0000bb02.bin
6daf3217e178d730ef887d0e954100ff2964d87288eac9fd9ae4dd87d5acf9f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBB02 13664 bytes
font_02_sfnt_off0000e6ae.bin
e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE6AE 16164 bytes

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