Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf660109a7141cc6…

MALICIOUS

PDF

61.4 KB Created: 2020-08-08 16:41:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 302fc011f284da5bc83ee602c0a0d897 SHA-1: 8fadc06e05efab213bf19b62bcfffe600827a177 SHA-256: bf660109a7141cc65dd8d97514755a439534e4952c7cba16d22dabe7eaf7d181
152 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Universal studios hollywood map 2020 pdf' and the malicious URL. This suggests a lure to trick users into visiting a malicious site, likely 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.com/pify?keyword=universal+studios+hollywood+map+2020+pdf
    • http://files.glenlakeoptimists.org/uploads/1/3/0/7/130740249/manixelogid-belemigutil.pdf
    • http://files.csavc.org/uploads/1/3/1/4/131454355/lulolatew.pdf
    • http://files.saxtonsdistillery.com/uploads/1/3/0/9/130970003/276a8be6f50.pdf
    • http://files.tlcbangor.com/uploads/1/3/1/4/131409709/655201d22dc70.pdf
    • https://cdn.shopify.com/s/files/1/0437/6992/1688/files/cox_cable_remote.pdf
    • https://cdn.shopify.com/s/files/1/0439/1495/2859/files/consultas_base_de_datos_sql.pdf
    • https://cdn.shopify.com/s/files/1/0435/8501/1869/files/14093444613.pdf
    • https://cdn.shopify.com/s/files/1/0432/4674/7803/files/volleyball_canada_score_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0446/8729/4617/files/syarah_qasidah_burdah.pdf
    • https://cdn.shopify.com/s/files/1/0437/6389/2375/files/calcium_phosphate_metabolism.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wexidemunuviviradepinitim.pdf
    • https://cdn.shopify.com/s/files/1/0435/7960/5147/files/catcalling_definition.pdf
    • https://cdn.shopify.com/s/files/1/0444/4487/6966/files/ophthalmic_lens_materials.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jotinu.pdf
    • https://cdn.shopify.com/s/files/1/0427/9776/0668/files/43817405714.pdf
    • https://cdn.shopify.com/s/files/1/0431/9110/7742/files/abbyy_transformer_v12._0._104.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_off0000b0b7.bin
1e904d3fca5641228c696369c7e28e8ac8b98fe97f6986f80ec5d1c6cfd48b16
pdf-font-stream PDF embedded font (sfnt) at offset 0xB0B7 5800 bytes
font_01_sfnt_off0000c46c.bin
79aba424f3e15827744b9e4caff84d8334751b5d467a0229afb214e7c86c50ba
pdf-font-stream PDF embedded font (sfnt) at offset 0xC46C 10596 bytes