Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f4cb95be260d713…

MALICIOUS

PDF

52.2 KB Created: 2020-08-18 22:03:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5eaebe4dbccdeae6c3da78e49a6a193f SHA-1: 869a0180af7f4c7f076ba7ab1ce0b8eed9892e30 SHA-256: 6f4cb95be260d71303f17e31f3fff6c34eb68fed3ff296a81456246e3a95a64d
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with a critical heuristic firing indicating it's a redirector link farm. The primary URL, 'https://ttraff.cc/pify?keyword=fanaa+all+shayari+video+free', is flagged as malicious. The document's structure and link farm suggest an attempt to manipulate search engine results or direct users to malicious content, aligning with a phishing or SEO scam attack pattern.

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=fanaa+all+shayari+video+free
    • http://files.motorcitybrewtours.com/uploads/1/3/0/8/130815664/798675.pdf
    • http://suvobuxus.magicalcelebrationtravel.com/uploads/1/3/0/7/130775710/5399561.pdf
    • http://files.ctodesign.com/uploads/1/3/1/3/131383657/gufejoba.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0432/0762/2817/files/57731812873.pdf
    • https://cdn.shopify.com/s/files/1/0436/7374/7609/files/kalaromivasejifafev.pdf
    • https://cdn.shopify.com/s/files/1/0430/6354/1917/files/fudotefotik.pdf
    • https://cdn.shopify.com/s/files/1/0435/6833/2959/files/sakujidipa.pdf
    • https://cdn.shopify.com/s/files/1/0433/6893/9672/files/mojoverikikixepavalov.pdf
    • https://cdn.shopify.com/s/files/1/0431/8180/1629/files/vector_curvature_calculator.pdf
    • https://cdn.shopify.com/s/files/1/0437/7296/9109/files/bibesufunufeg.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/loxutiwijadewafulon.pdf
    • https://cdn.shopify.com/s/files/1/0431/5247/4267/files/22647773060.pdf
    • https://cdn.shopify.com/s/files/1/0431/3900/6632/files/difference_between_patriotism_and_nationalism.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_off00006c76.bin
97cfc6db89c0e13df30564fdc4ecca409389eafde52ce00ed50dddd7d9112149
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C76 4820 bytes
font_01_sfnt_off00007ccb.bin
1e93487250962f7e37ca92d55a56391666a771e8db2421fd57737df517d57dfe
pdf-font-stream PDF embedded font (sfnt) at offset 0x7CCB 10344 bytes
font_02_sfnt_off0000a05b.bin
ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8
pdf-font-stream PDF embedded font (sfnt) at offset 0xA05B 16164 bytes
font_03_sfnt_off0000b574.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0xB574 4324 bytes