Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1c4bee9006251f2…

MALICIOUS

PDF

34.0 KB Created: 2020-06-15 13:15:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9226f64a40912c11e46b60e9f8767440 SHA-1: 42eec58bb8eb3cb8276959d8354026bf9506fcce SHA-256: f1c4bee9006251f2637eff295e56d9e825b7214894266c607044578c613a07c0
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains numerous embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, which point to external PDF files. The document body also contains text related to an 'online PDF editor' and references wkhtmltopdf, suggesting a lure to trick users into clicking these links. The primary intent appears to be SEO manipulation or directing users to potentially malicious content hosted on these external sites.

Heuristics 3

  • 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
  • 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://2v4.undesirable.us/uploads/1/3/0/6/130604054/130604054.html#onlne+pdf+editor
    • http://greatestfolksongs.com/uploads/1/3/0/5/130588627/d2f484d89b8e387.pdf
    • http://redbussecondarydns.hialeahpost.com/uploads/1/3/1/6/131636866/pofag.pdf
    • http://icebusters.net/uploads/1/3/0/5/130551696/pibenelomizal.pdf
    • http://solopaso.com/uploads/1/3/0/7/130739493/342501.pdf
    • http://cre8space4.us/uploads/1/3/0/7/130775337/5083689.pdf
    • https://juwojoxado89904707.files.w
    • https://mikupekuforu902814454.files.wordpress.com/2020/06/52008679482.pdf
    • https://zukebesigo.files.wordpress.com/2020/06/zotif.pdf
    • https://wedopozox.files.wordpress.com/2020/06/bazexupifofanidosodu.pdf
    • https://juwojoxado89904707.files.wordpress.com/2020/06/sediso.pdf
    • https://lopulonemeji.files.wordpress.com/2020/06/12161076533.pdf
    • https://zipojuroxob.files.wordpress.com/2020/06/sexuxodakikelur.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ccf.bin
83fa8b6a4744b5a658ffad97bc29d0c55294af873a22dd6f1cfd0b4a794c92ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CCF 9452 bytes

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