Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1c00ec45cbd8b77…

MALICIOUS

PDF

115.7 KB Created: 2020-08-09 19:59:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 128f3bfd9225b5f3b7a6c31688717d7b SHA-1: 6e53f9c0b4377ba241c69ac7a1a105a0de31f6ae SHA-256: e1c00ec45cbd8b7741ca7a5693614f0bb3a6b41a08a59751ac9fe67202849336
152 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy to obscure the malicious destination. No scripts were extracted from this sample.

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=allan+pease+questions+are+the+answers+pdf
    • http://mubibawa.fountdallas.com/uploads/1/3/1/6/131636612/talowiseku_totup_sukifo.pdf
    • http://files.gairdin.com/uploads/1/3/1/3/131382673/lewiwu.pdf
    • http://files.kallenakucers.com/uploads/1/3/0/8/130813979/eca2ce5f.pdf
    • https://cdn.shopify.com/s/files/1/0434/2287/5797/files/virtual_dj_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18491093394.pdf
    • https://cdn.shopify.com/s/files/1/0428/1306/3327/files/52706417395.pdf
    • https://cdn.shopify.com/s/files/1/0431/0741/8273/files/reading_quran_online.pdf
    • https://cdn.shopify.com/s/files/1/0431/9484/3293/files/85095211818.pdf
    • https://cdn.shopify.com/s/files/1/0439/4074/1275/files/nowusubefovunejorirokupi.pdf
    • https://cdn.shopify.com/s/files/1/0433/6815/3253/files/32579876936.pdf
    • https://cdn.shopify.com/s/files/1/0439/3716/9576/files/tabanezikug.pdf
    • https://cdn.shopify.com/s/files/1/0432/6791/5936/files/xewuzukinogigew.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_off000187ec.bin
4d75ac93322d7fb3dc48a9774f428be0b4904428e6478493495eb6165e60f320		 pdf-font-stream PDF embedded font (sfnt) at offset 0x187EC 5336 bytes
font_01_sfnt_off00019a1e.bin
a90f329779c22e04ff618a4ee3535306197856a064495ee91b61ac2f2b86cae8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19A1E 11184 bytes

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