Malicious PDF — malware analysis report

Static analysis result for SHA-256 7992305db512cff5…

MALICIOUS

PDF

43.4 KB Created: 2020-08-27 16:02:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f387396afeb95515aa283dc01468df5f SHA-1: 89c97f07c75eda723ae4650925626dc8c8284658 SHA-256: 7992305db512cff5082f00b090d060be9fb47f073674ed1d298be19ded03556c
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to benign Shopify URLs, but also includes a critical link to a known malicious redirector at 'ttraff.cc'. This suggests a link farm or SEO manipulation tactic to drive traffic to malicious sites. The ML classifier also strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

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=cotton+patch+meatloaf+recipe
    • http://gomis.matheascatering.com/uploads/1/3/1/0/131070719/vosomabo-midalexogav-jalekimexe-vupup.pdf
    • http://vipowoxoz.pioneervalleykennelclub.com/uploads/1/3/2/3/132302842/zonadonan-kotemafidu-komolibur.pdf
    • http://files.rcprayertabernacle.com/uploads/1/3/1/4/131407247/gajeredijesugug_masulez_ragifejimi_konomofej.pdf
    • http://falade.eibenteaching.com/uploads/1/3/2/6/132682974/dujakubatir-rawemeso-sawula.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0427/7665/8087/files/55994394087.pdf
    • https://cdn.shopify.com/s/files/1/0438/2857/6416/files/86691216108.pdf
    • https://cdn.shopify.com/s/files/1/0433/1775/6057/files/65358364284.pdf
    • https://cdn.shopify.com/s/files/1/0432/1463/5171/files/nojag.pdf
    • https://cdn.shopify.com/s/files/1/0434/5702/0056/files/information_memorandum_template_real_estate.pdf
    • https://cdn.shopify.com/s/files/1/0437/5596/2522/files/40921435558.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vibuzos.pdf
    • https://cdn.shopify.com/s/files/1/0431/6200/9760/files/modul_akuntansi_pajak.pdf
    • https://cdn.shopify.com/s/files/1/0444/6070/3911/files/35750188637.pdf
    • https://cdn.shopify.com/s/files/1/0433/7693/5068/files/4670647899.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vukabisozudetilo.pdf
    • https://cdn.shopify.com/s/files/1/0436/7617/2441/files/a_new_method_for_non_parametric_multivariate_analysis_of_variance.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006301.bin
4f9297d142020b6bc65f1028e96f737a2d5fcb6622e868398c24e37be8fed16c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6301 4980 bytes
font_01_sfnt_off000073bd.bin
a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73BD 1800 bytes
font_02_sfnt_off00007c4a.bin
76d2ac515fde845ee644ceb5d4b31e07bdf872fcbf4216a424a1ba955c19e5fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C4A 10564 bytes

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