Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cc617169b4ec706…

MALICIOUS

PDF

40.3 KB Created: 2020-09-21 10:50:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ce975bb0e26b834feb4cb4951bd6d9e SHA-1: 04ea98e792a8e4a12d5b36309d129038325c01a6 SHA-256: 5cc617169b4ec706ff7ab63cc5e0ee40e78d5b1e6c65b18f63536aac43fbb471
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though obfuscated, contains text suggesting it is a lure for 'ncc 1701 enterprise blueprints'. The presence of many external PDF links, including one to a redirector, strongly suggests a phishing or malware distribution attempt. No scripts were extracted, but the PDF structure itself facilitates redirection.

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.me/wix?keyword=ncc+1701+enterprise+blueprints
    • http://files.thefashionanalyst.com/uploads/1/3/1/3/131383624/wezunawe.pdf
    • http://files.ethanallenrattery.com/uploads/1/3/0/8/130874238/7771840.pdf
    • http://files.jaiersoccer.org/uploads/1/3/1/1/131164002/gisid_gawusa_topimavonukoz.pdf
    • http://sezafe.leannemartellwellness.com/uploads/1/3/0/8/130873922/e20eea.pdf
    • http://files.thewellnesstraininginstitute.com/uploads/1/3/0/7/130776609/173245.pdf
    • http://foxasutut.stpiusxtucsonyouth.com/uploads/1/3/2/7/132740649/b04895ce18e47d.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/4092/3048/files/pozukabosibetuzojo.pdf
    • https://cdn.shopify.com/s/files/1/0430/7540/3936/files/litafalazubatosatiju.pdf
    • https://e2ae8087-2ea3-4f23-9b61-f8739990845b.filesusr.com/ugd/d4579c_392cb58fccda4358a08554179cc86952.pdf?index=true
    • https://5553f3a7-0104-4719-a0ef-dbdeb5d5ecab.filesusr.com/ugd/37987b_11c42dc4ffca40e3acfe8662f50902d5.pdf?index=true
    • https://48970218-f8c6-4312-bb97-f8e688ff5362.filesusr.com/ugd/46bfb0_916ef63e97d249dab61bf99dbb5a34a8.pdf?index=true
    • https://dec49060-e462-4eb9-9c0e-236277f9bd2d.filesusr.com/ugd/61c57f_5bbadeb049014e53b6d9096115f6f559.pdf?index=true
    • https://c778279a-e9d0-45bd-a7ef-1026564a1820.filesusr.com/ugd/b18e4d_c8b895337d5545349af01498cafc96f9.pdf?index=true
    • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006039.bin
e6e282c4b2693aebcf30f04c3e44afa6250f0824b04f31ca1811a58fe5df3c2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6039 5100 bytes
font_01_sfnt_off000071b2.bin
b21d1d394d236d56492fabdb6d6f9a7cea42fa333c966ebbbcaf88bab462457a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71B2 10360 bytes

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