Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ab3e1bab8373b1e…

MALICIOUS

PDF

47.2 KB Created: 2020-08-10 14:48:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c7156a5a8ae1659150188498ad2c5688 SHA-1: cbaeccd67b4b1003ede542fb3620e827be0002e0 SHA-256: 0ab3e1bab8373b1ec7576a956fd32fb45a29a3f9bf0b03876f78419b64f3ab47
154 Risk Score

Malware Insights

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

The PDF contains a deceptive document body referencing a 'Maharashtra census 2020 pdf in marathi' and embeds numerous links. One critical heuristic indicates the primary link leads to known malicious redirector infrastructure, specifically 'https://ttraff.com/pify?keyword=maharashtra+census+2020+pdf+in+marathi'. Another heuristic flags a large number of external PDF links, suggesting a link farm designed to manipulate search engine results or distribute further malicious content. The ML classifier strongly supports the malicious verdict.

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=maharashtra+census+2020+pdf+in+marathi
    • http://lifeg.wellnessthroughthearts.com/uploads/1/3/2/6/132696414/pozefimumazosu.pdf
    • http://files.lizleyden.com/uploads/1/3/2/7/132710779/sitadizixu_bukavewat_sowubunapa_tumute.pdf
    • http://zigut.oliverholtaway.com/uploads/1/3/0/7/130775732/685e0c547c7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/2403/9592/files/66977349491.pdf
    • https://cdn.shopify.com/s/files/1/0434/0632/7959/files/lujevunifebipat.pdf
    • https://cdn.shopify.com/s/files/1/0429/8244/1113/files/nadodedebufoxubisazo.pdf
    • https://cdn.shopify.com/s/files/1/0437/4895/0170/files/dadusonu.pdf
    • https://cdn.shopify.com/s/files/1/0429/4397/1484/files/carmina_burana_timpani.pdf
    • https://cdn.shopify.com/s/files/1/0438/1815/6192/files/medical_certificate_for_josaa.pdf
    • https://cdn.shopify.com/s/files/1/0437/3754/6917/files/rosidubewuvewafuwerafurup.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/44484222312.pdf
    • https://cdn.shopify.com/s/files/1/0428/1873/2191/files/ritofetidazumoregufawu.pdf
    • https://cdn.shopify.com/s/files/1/0437/7811/3697/files/49949611989.pdf
    • https://cdn.shopify.com/s/files/1/0433/9128/7452/files/5141166788.pdf
    • https://cdn.shopify.com/s/files/1/0430/3863/8241/files/89581644291.pdf
    • https://cdn.shopify.com/s/files/1/0431/3274/7927/files/86754336225.pdf
    • https://cdn.shopify.com/s/files/1/0431/0047/1456/files/nepuwumubafi.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_off000070f4.bin
857a6e2cc99c9e8dd798e4419745a78f1c1eb5c5b57c9465dcffa5195cf1e7b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70F4 5640 bytes
font_01_sfnt_off000083ff.bin
ec8b45ccf30a8e9b0285e72b71eaeeb23cefe8a9b89d340ca5a74237d63bc0f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83FF 13948 bytes

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