Malicious PDF — malware analysis report

Static analysis result for SHA-256 755166ccfd1e64e2…

MALICIOUS

PDF

40.7 KB Created: 2020-08-28 14:03:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f195d311639796d1cce58e06f1c63493 SHA-1: 25df66a82c6b4f2a4a7ae847716cef25c325f1aa SHA-256: 755166ccfd1e64e2605da6b302c2df6309fd2d32a6584d10269cdd0be765610e
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.ru/pify?keyword=dragon+nikana+build'. Another critical heuristic identified a large PDF link farm, suggesting an attempt to manipulate search engine results or distribute malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a malicious intent to redirect users to potentially harmful sites.

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.ru/pify?keyword=dragon+nikana+build
    • http://fogirizax.mitchadvent.com/uploads/1/3/1/6/131637046/tajujisokifa_gojedomobeke.pdf
    • http://files.culinaryvacationsinc.com/uploads/1/3/2/7/132740467/gevadi.pdf
    • http://files.shelter-share.org/uploads/1/3/1/3/131383283/fc628b1b798.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/3103/6053/files/tic_tac_toe_code_java.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81256704061.pdf
    • https://cdn.shopify.com/s/files/1/0429/3571/3958/files/magofatedokapoken.pdf
    • https://cdn.shopify.com/s/files/1/0431/3582/8124/files/foletakegusu.pdf
    • https://cdn.shopify.com/s/files/1/0440/5736/2597/files/434366598.pdf
    • https://cdn.shopify.com/s/files/1/0437/1064/4377/files/dugowakupigagerofutoze.pdf
    • https://cdn.shopify.com/s/files/1/0437/9593/9488/files/83362434717.pdf
    • https://cdn.shopify.com/s/files/1/0429/7824/6815/files/would_you_please_answer_the_following_questions.pdf
    • https://cdn.shopify.com/s/files/1/0432/6447/5299/files/tameb.pdf
    • https://cdn.shopify.com/s/files/1/0440/1135/6318/files/46935164060.pdf
    • https://cdn.shopify.com/s/files/1/0433/2853/6734/files/xalijin.pdf
    • https://cdn.shopify.com/s/files/1/0430/6839/1577/files/cognos_tutorial_for_beginners.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_off00004355.bin
38709a657d09c83d665b36884c83f43717ab1a0c4e700dddc9b9edccc3d1b07c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4355 5016 bytes
font_01_sfnt_off0000546a.bin
1fb5601249e9f24b79c1525dc6e0fd0057c29f9b50fbc74dccf5d325ed008def		 pdf-font-stream PDF embedded font (sfnt) at offset 0x546A 1988 bytes
font_02_sfnt_off00005dd6.bin
417635a7218992a7383c5988ccc48768b54aa9d0759196d57bf440ab291a5714		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD6 10096 bytes
font_03_sfnt_off00008072.bin
53121803cd1d13b4da54a9096520bf0c12ca821c8a17e323157945f8e58bee23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8072 16108 bytes

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