Malicious PDF — malware analysis report

Static analysis result for SHA-256 025fd30d034c0d3b…

MALICIOUS

PDF

51.8 KB Created: 2020-09-01 10:48:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b20ef246d53563e6f8bd431d7e2bb7d0 SHA-1: 239607d06b3250fd4a8554a3c664105d3b537157 SHA-256: 025fd30d034c0d3b33bc912ce98dd91e982f95d927d5e7c2dd6797612bae2134
154 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for linking to known malicious redirector infrastructure, specifically a URL related to movie downloads. The document body, though partially corrupted, contains text referencing 'Attu movie free tamilrockers' and the malicious URL. The PDF also contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm or redirection strategy.

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/wix?keyword=attu+movie+free++tamilrockers
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0460/6119/1323/files/a3_tri_fold_brochure_template_indesign.pdf
    • https://cdn.shopify.com/s/files/1/0459/9942/3647/files/tamil_movie_in_2019_in_isaimini.pdf
    • https://cdn.shopify.com/s/files/1/0437/5393/0901/files/tmux_attach_session.pdf
    • https://cdn.shopify.com/s/files/1/0432/3088/8094/files/desozuroxokuvizororevami.pdf
    • https://cdn.shopify.com/s/files/1/0430/7664/9121/files/airport_utility_apk_for_android.pdf
    • https://cdn.shopify.com/s/files/1/0433/5743/8101/files/cancionero_de_guitarra_facil_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0429/5180/3039/files/51372997216.pdf
    • https://cdn.shopify.com/s/files/1/0433/3309/1480/files/fusionner_plusieurs_avec_foxit_reader.pdf
    • https://cdn.shopify.com/s/files/1/0431/6138/7170/files/adding_mixed_fractions_with_same_denominators_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0431/5817/5908/files/happy_bhai_dooj_2019_images.pdf
    • https://static.usrfiles.com/ugd/c345b0_113a03c404fc4da6a7d6f79372016ebe.pdf
    • https://static.usrfiles.com/ugd/fe83c3_04f6a190358144ab99f7f942f3c0a56e.pdf
    • https://static.usrfiles.com/ugd/158fb9_3961ffb5267546779717653b029a1106.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_off00006cad.bin
53dbfabf567363bc41000a7383c1ce63f67b3088bb0e723ba16ee79c74c93832		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CAD 5140 bytes
font_01_sfnt_off00007e10.bin
73983ccd477f0e4c07634362c0f9f13a23cea415a26bff37f7f125d59a681190		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E10 1936 bytes
font_02_sfnt_off00008753.bin
907f299ba7b454dfbb636dcd30f1ebdf119bc1023dd40ce7d78f227ec6da1f2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8753 10900 bytes
font_03_sfnt_off0000acb7.bin
ebd2804bff382343e08f6a42dc45f69f4e794c08b23908ae60ba78ededae74b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xACB7 16164 bytes

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