Malicious PDF — malware analysis report

Static analysis result for SHA-256 a72f6af4b0921239…

MALICIOUS

PDF

48.6 KB Created: 2020-08-25 22:17:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 24bae84a39c9d9bc49f7c6aadc3b93c0 SHA-1: aaa521f0d6e7a7a8f1d8d6d66f839cf6285beb52 SHA-256: a72f6af4b09212393224e33cea5a43b1b4db893c67f85001ecd3843b0e79b927
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains text related to a 'young living essential oil starter guide' and the malicious URL. The PDF also exhibits characteristics of a link farm, with numerous external links, many pointing to shopify.com domains, likely for SEO manipulation to increase visibility.

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=young+living+essential+oil+starter+guide
    • http://files.thenextstepridingservices.com/uploads/1/3/1/8/131858287/6825764.pdf
    • http://files.effinghamelementary.org/uploads/1/3/0/8/130813427/nalofezidi-xosojozofuwa.pdf
    • http://files.creativesprouts.org/uploads/1/3/0/9/130969472/56c6e6cf.pdf
    • http://files.laurajaynephotographer.co.uk/uploads/1/3/2/6/132682813/be6ee55b7a8d9.pdf
    • http://files.hesparentsclub.com/uploads/1/3/1/8/131857115/fabibilofotuji_zibusozixapij.pdf
    • http://files.thenextstepridingservices.com/up
    • https://cdn.shopify.com/s/files/1/0438/4679/5424/files/magento_invoice_template_edit.pdf
    • https://cdn.shopify.com/s/files/1/0429/3859/7539/files/texas_drivers_handbook_answers.pdf
    • https://cdn.shopify.com/s/files/1/0432/1955/0370/files/974170938.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zozaweguxilamefawe.pdf
    • https://cdn.shopify.com/s/files/1/0432/1817/4107/files/internship_report_in_finance.pdf
    • https://cdn.shopify.com/s/files/1/0432/3993/2067/files/24349727284.pdf
    • https://cdn.shopify.com/s/files/1/0451/0426/7427/files/62877924348.pdf
    • https://cdn.shopify.com/s/files/1/0434/8719/9394/files/ciencias_naturales_libro.pdf
    • https://cdn.shopify.com/s/files/1/0428/4484/8295/files/5227396442.pdf
    • https://cdn.shopify.com/s/files/1/0461/9422/9406/files/declaration_of_conformity_template_uk.pdf
    • https://cdn.shopify.com/s/files/1/0432/3170/7294/files/microsoft_prime_card.pdf
    • https://cdn.shopify.com/s/files/1/0429/6779/3820/files/bohr_atomic_model_postulates.pdf
    • https://cdn.shopify.com/s/files/1/0437/8905/8206/files/52122382227.pdf
    • https://cdn.shopify.com/s/files/1/0427/5778/3718/files/pro_ana_tips_and_tricks_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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007e15.bin
1b6f0d55ad5c3a0ca02141b7c0cd983bc94b46d20fde297a8d5e7f1b346c5e65		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E15 5012 bytes
font_01_sfnt_off00008f3d.bin
8326955a61971a6da2ff069452956c45d19172a418292d219d6c0f02468caceb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F3D 11080 bytes

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