Malicious PDF — malware analysis report

Static analysis result for SHA-256 635f5516ef06d33b…

MALICIOUS

PDF

37.1 KB Created: 2020-08-27 19:40:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b76b222568bce549c028ee546320e745 SHA-1: 8afde60eb33e2ce05ae163865a752f68ca53eba3 SHA-256: 635f5516ef06d33b08e15bae795b4bc0126c86102f6b6e5582e2b036ee747894
94 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body text, though heavily obfuscated, contains the phrase 'Bitter moon movie download in tamilr' and the malicious URL, suggesting a lure for users seeking entertainment content. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.link/pify?keyword=bitter+moon+movie+download+in+tamilr
    • http://files.myped15.com/uploads/1/3/0/7/130776514/708d2a8b39db8.pdf
    • http://files.sarahsayswrite.com/uploads/1/3/2/3/132303013/fededimajenupuseteb.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53940500656.pdf
    • https://cdn.shopify.com/s/files/1/0432/5300/6494/files/jamar.pdf
    • https://cdn.shopify.com/s/files/1/0430/1560/2339/files/bomigugugigotinun.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69296453687.pdf
    • https://cdn.shopify.com/s/files/1/0435/4021/8015/files/pojir.pdf
    • https://cdn.shopify.com/s/files/1/0429/2601/4620/files/57465288656.pdf
    • https://cdn.shopify.com/s/files/1/0435/5712/6295/files/guwalobovagejunirisizib.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_off0000533c.bin
8a85810c00b1060d8eb302d2c280310ef530f49adf12e9c74f7e91ef3c83a7a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x533C 4992 bytes
font_01_sfnt_off0000642f.bin
c6e20c3f28267f79c0c30af60d7bb18f585da085a00a9d5d831aaa6fd4f327c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x642F 10800 bytes

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