Malicious PDF — malware analysis report

Static analysis result for SHA-256 093556bd43868c23…

MALICIOUS

PDF

48.3 KB Created: 2020-08-08 14:20:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2789ea5b18cf76274e83845128ff7326 SHA-1: 2e219023a9d3fba359e554241e30ed21df2b758a SHA-256: 093556bd43868c235416fe83af1cd4378949b7f5584b829f7db5f3be5e538cd9
154 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector known to host malicious content. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains URLs that are likely intended to lead the user to malicious sites, potentially for phishing or malware distribution.

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/wb?keyword=que%20son%20los%20metodos%20anticonceptivos%20de%20barrera%20pdf
    • http://files.clarityautoglass.com/uploads/1/3/2/6/132681479/73467ce9.pdf
    • http://files.lindyjames-christenson.com/uploads/1/3/1/3/131379612/3953267.pdf
    • http://files.summerridgesammamish.com/uploads/1/3/1/4/131438024/rikoxaz-zupanive.pdf
    • http://files.thechurchofthelivinggod.com/uploads/1/3/1/3/131379223/1937077.pdf
    • http://files.glacierviewfiredept.com/uploads/1/3/0/7/130739713/6ac9eb92.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/1509/3917/files/ceramic_materials_processing_properties_and_applications.pdf
    • https://cdn.shopify.com/s/files/1/0432/5530/0249/files/pixerezizobanugof.pdf
    • https://cdn.shopify.com/s/files/1/0428/6591/8118/files/affiliate_marketing_2020.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43545787384.pdf
    • https://cdn.shopify.com/s/files/1/0428/3557/4943/files/lenerixofub.pdf
    • https://cdn.shopify.com/s/files/1/0439/8995/8814/files/44919844440.pdf
    • https://cdn.shopify.com/s/files/1/0429/8548/8543/files/53531799646.pdf
    • https://cdn.shopify.com/s/files/1/0434/5787/2033/files/wuvojaxisijasa.pdf
    • https://cdn.shopify.com/s/files/1/0436/1935/2739/files/warning_sign_template.pdf
    • https://cdn.shopify.com/s/files/1/0436/1800/9250/files/gunitulaguravetalife.pdf
    • https://cdn.shopify.com/s/files/1/0429/1241/5897/files/88643642084.pdf
    • https://cdn.shopify.com/s/files/1/0429/7873/8335/files/32777204586.pdf
    • https://cdn.shopify.com/s/files/1/0434/7058/6022/files/bhavani_ashtakam_sanskrit.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007a33.bin
4fd599deec576d4a5adfe079ef7c61f31065f9c4d77a3b48764313c3d8f62575		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A33 5560 bytes
font_01_sfnt_off00008d04.bin
76e0ef01bbf4b860b9d183b0388b3e55d3d97ecbd8bf2b9d8a59e4957511b436		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D04 11392 bytes

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