Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5a49f7b35be6fb0…

MALICIOUS

PDF

73.6 KB Created: 2020-04-05 04:51:19 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 33036e674598b678bc53e15693aa8f44 SHA-1: e57d4f45fec94b64ffc51d2839b8513c5c1dab87 SHA-256: e5a49f7b35be6fb0e1bd8d4ac72d74afe607bc8a07c083a2137261bb92cc7f54
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by an ML classifier. It contains a large number of external links pointing to various domains, many of which appear to be part of a link farm designed for SEO manipulation. The document body, though partially corrupted, contains references to 'Chrono cross playable characters list' and 'wkhtmltopdf', suggesting a lure to a game-related topic. The primary attack pattern involves directing users to a network of PDF files hosted on these domains, likely to distribute further malware or engage in phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9949

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://yogimama.org/uploads/1/3/0/7/130775265/130775265.html#chrono+cross+playable+characters+list
    • http://embodymind.org/uploads/1/3/1/4/131407181/puxaxifa.pdf
    • http://fafaprofessionalhairbraiding.com/uploads/1/3/0/8/130814001/8186381.pdf
    • http://hitsofthestylistics.org/uploads/1/3/0/7/130739898/9739507.pdf
    • http://prbyterri.com/uploads/1/3/1/3/131383650/3596162.pdf
    • http://cdontigny-teamd.ca/uploads/1/3/0/6/130605422/493a4f9f747e9.pdf
    • http://tcdigital.studio/uploads/1/3/0/4/130489650/de365.pdf
    • http://antistresstore.com/uploads/1/3/0/7/130775364/lifamegiwenime_munexemif_jonadi_voxagunajo.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_off0000bef1.bin
105e717ba55d3177807cf667cd20e12b665ad2445c0418b68a2136f2d7b917be		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBEF1 8896 bytes
font_01_sfnt_off0000dfac.bin
793f9a71180948300e0b7084942ce469e266812f86306df58487d95d81137db7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDFAC 18212 bytes

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