Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c1217fd1342072b…

MALICIOUS

PDF

47.6 KB Created: 2020-08-10 16:38:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d04beca84e258f21c6523a2ac0f6157 SHA-1: 45b8917a8860fc585167ce744b880799396e0fec SHA-256: 0c1217fd1342072be63b752c9b385233e8f0ee3fe372277de14e884d7b870e5d
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and keywords suggesting a lure. The presence of numerous other PDF links, many hosted on Shopify, indicates a potential link farm or SEO manipulation tactic to distribute malicious content. The ML classifier strongly flagged this PDF as malicious.

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=wacom+pdf+annotation+mac
    • http://wusab.biologybynapier.com/uploads/1/3/2/6/132696212/32160e61.pdf
    • http://files.thegardeninbetween.com/uploads/1/3/1/8/131871602/buvowivekakagike.pdf
    • http://files.venablesgoldsmith.com/uploads/1/3/2/6/132682868/zareragis.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/1734/6976/files/rafavapizojukotusosenuj.pdf
    • https://cdn.shopify.com/s/files/1/0429/5131/1513/files/7562005061.pdf
    • https://cdn.shopify.com/s/files/1/0437/5940/3157/files/behavioral_treatment_for_adhd.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lomapatigusobotatijizu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zeperilifo.pdf
    • https://cdn.shopify.com/s/files/1/0427/8131/1132/files/lubogudegukibos.pdf
    • https://cdn.shopify.com/s/files/1/0431/0768/0405/files/86368327279.pdf
    • https://cdn.shopify.com/s/files/1/0428/2050/1660/files/sbi_kyc_form.pdf
    • https://cdn.shopify.com/s/files/1/0431/7950/7870/files/tigufik.pdf
    • https://cdn.shopify.com/s/files/1/0427/9923/5228/files/xujiwutowidemo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3556/5978/files/ap_stylebook_2017.pdf
    • https://cdn.shopify.com/s/files/1/0429/1028/5990/files/88886763856.pdf
    • https://cdn.shopify.com/s/files/1/0446/3912/5667/files/administrao_de_medicamentos_via_subcutnea.pdf
    • https://cdn.shopify.com/s/files/1/0431/5293/3024/files/44342095242.pdf
    • https://cdn.shopify.com/s/files/1/0433/9869/3013/files/zeros_of_polynomial_functions_worksheet.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007d13.bin
152ccb848404460e6773f76b404e4cefa18600bb65430723e21ada3c5df44e4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D13 5008 bytes
font_01_sfnt_off00008e1b.bin
99f6c0cc8cde36213cd322b393a11e621339303fe4cff0b77c647fca71f93354		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E1B 10392 bytes

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