Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c2c837d9fcb14db…

MALICIOUS

PDF

207.0 KB Created: 2020-08-30 16:49:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b1f5baa8621b3dd80c8af14aa08ad78f SHA-1: dc30221100030228d8838f9b432365cffee35cf5 SHA-256: 6c2c837d9fcb14dbe61cc3dea927caf270549861a34f7b84f9e68bbf11205371
94 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely intended to lead the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary malicious component. No scripts were extracted, but the presence of the malicious URL and the ML classifier's high confidence indicate a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 3

  • 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.
  • 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.ru/wix?keyword=filme+noi+2019+actiune+subtitrate+in
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/tepiko.pdf
    • https://cdn.shopify.com/s/files/1/0435/1649/3976/files/zibiluvuvedodomow.pdf
    • https://cdn.shopify.com/s/files/1/0430/6753/9623/files/wovijupixoxasixijoxemukip.pdf
    • https://cdn.shopify.com/s/files/1/0432/9707/9460/files/12158895796.pdf
    • https://cdn.shopify.com/s/files/1/0431/3723/7148/files/3000135095.pdf
    • https://cdn.shopify.com/s/files/1/0434/2287/5797/files/grimaldi_discrete_and_combinatorial_mathematics.pdf
    • https://static.usrfiles.com/ugd/b8c837_19351ba1901849da88e26b143cfeac5e.pdf
    • https://static.usrfiles.com/ugd/865d50_89e379b2952443de911e564cb4e3812e.pdf
    • https://static.usrfiles.com/ugd/f46427_4248c22121904b70a8d4fd340312044f.pdf
    • https://static.usrfiles.com/ugd/b8c837_7da62ddf428d4411bc5e387e0441d49a.pdf
    • https://static.usrfiles.com/ugd/b8c837_58cb417fc5a44158927dfaadcf54042e.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_off0002f34e.bin
e53586900af7b79610f1c5a63b4e013091544d10abc2e09558c7fe1152642d1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F34E 5520 bytes
font_01_sfnt_off000305f4.bin
eeb14a77d494145877485f2d4f62b5003b7c70cb55fb35e1737ccfea7a9dbda9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x305F4 12144 bytes

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