Malicious PDF — malware analysis report

Static analysis result for SHA-256 fee163680c6bd250…

MALICIOUS

PDF

118.5 KB Created: 2020-06-02 06:08:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: 42e884d243420ccb4c75d424ded8a409 SHA-1: 1f6283be7caccf62367d0aeb2a09e4642f5e778c SHA-256: fee163680c6bd25014251e2f1e93c7b7d171848edae9e85f20b7d0d79270ad61
96 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, many of which appear to be part of a link farm. The document body also contains a URL that appears to be related to a religious festival, likely a lure. The primary purpose seems to be directing users to a network of websites, potentially for SEO manipulation or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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://70v1l.slpny.com/uploads/1/3/0/3/130313480/130313480.html#vinayaka+chavithi+pooja+telugu+pdf PDF link annotation
    • http://tafaritribeshop.biz/uploads/1/3/1/4/131406604/vonawobagovilajanez.pdfIn PDF document text
    • http://internorteaa.org/uploads/1/3/1/6/131606405/9ab8081b3f4a.pdfIn PDF document text
    • http://wecandothatma.com/uploads/1/3/0/3/130323156/kaxewinoxejabesisota.pdfIn PDF document text
    • http://bensi.net/uploads/1/3/0/5/130539042/pupetosel.pdfIn PDF document text
    • http://dreamfreedesign.com/uploads/1/3/0/4/130435820/gamitapuzik-noxatugoren-bupunesiferun.pdfIn PDF document text
    • http://topgaragedoorrepairaustin.com/uploads/1/3/0/5/130589004/sararibewat.pdfIn PDF document text
    • http://donparishagency.com/uploads/1/3/0/4/130477028/renoxujeboz.pdfIn PDF document text
    • http://70v1l.slpny.com/uploads/1/3/0/3/130313480/terms.htmlIn PDF document text
    • http://70v1l.slpny.com/uploads/1/3/0/3/130313480/dmca.htmlIn PDF document text
    • http://70v1l.slpny.com/uploads/1/3/0/3/130313480/policy.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://jowixen.files.wordpress.com/2020/05/42331462859.pdfIn PDF document text
    • https://pekuseni.files.wordpress.com/2020/05/zibunef.pdfIn PDF document text
    • https://jesudutidak.files.wordpress.com/2020/05/34450369055.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010165.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10165 3720 bytes
SHA-256: 40ef96da86b6123d577d475be460de15c41b9ca7393a8e650be4e9942aa3c64b
font_01_sfnt_off00010cc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CC5 92728 bytes
SHA-256: 1fbbd3c179a843560b461ff3706ee6d70e82385858a1872917c93b33984d9b95
font_02_sfnt_off0001ac18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AC18 9852 bytes
SHA-256: 11f34ef2eea5ec505518954b39edf884544a24053dd1b81921464e25f72ea3c5

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