Malicious PDF — malware analysis report

Static analysis result for SHA-256 85136071d521cbf2…

MALICIOUS

PDF

46.3 KB Created: 2020-08-23 18:27:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c3c7ab2eb45379743fe39a55dda59829 SHA-1: ced0f51b8ffa9579d4f2467b94402560d037afc7 SHA-256: 85136071d521cbf268662a4beaaed03d59cf52296a6cb3b72c759ff38343947e
102 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 designed to lure users to potentially harmful content. The document body, though partially corrupted, includes text related to 'Bean movie in tamil' and the redirector URL, suggesting a lure to entice clicks. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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/pify?keyword=bean+movie++in+tamil In PDF document text
    • http://xipekal.gibelin.eu/uploads/1/3/1/3/131379510/3b61b280.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/vizakumarerivobod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1923/8562/files/wikejasovoketukajoraxir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1344/5544/files/come_trasformare_centimetri_in_metri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/5647/1720/files/google_chrome_per_ubuntu_32_bit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6211/7031/files/vebovege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6289/4485/files/77119273241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2071/2098/files/new_movies_app_apk.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C26 4668 bytes
SHA-256: dc040caf2469ed5366c96362fde41013744e668b7059c4c4ce84123c8bfcd42c
font_01_sfnt_off00005bf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BF3 11332 bytes
SHA-256: 866569f7ea275f16485b3f25f767980ad47d1e0047ac6cd1a5fec3ee4a140a09
font_02_sfnt_off00007973.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7973 4456 bytes
SHA-256: d873de473ecc791ae6f62a6845098a774ff8a7500b42013f0214734b3b1e23d0
font_03_sfnt_off00008940.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8940 10160 bytes
SHA-256: fad38806c097d5ad2518cd9d44e5859c32eec19f8d1e26a6d81f7178132ff39b