Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec1a0b2dbc0a011e…

MALICIOUS

PDF

31.9 KB Created: 2020-06-06 05:52:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f9544869fe7f9b64407bc32f630c120 SHA-1: 0b82e6cd1c20878b22df089a495624605d47e811 SHA-256: ec1a0b2dbc0a011e8bde9a1e2a06c09594b36df7d8145864b9e60dd8241e88ab
62 Risk Score

Malware Insights

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

The PDF document contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body text is minimal and appears to be metadata or filler, with the primary content being the embedded URLs. The intent appears to be to direct users to a large number of external sites, likely for SEO manipulation or to serve as a landing page for further malicious activity.

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://pjcitrus.net/uploads/1/3/1/3/131383358/131383358.html#let+my+light+shine+bright
    • http://bullpencomics.com/uploads/1/3/0/6/130620974/88abebac.pdf
    • http://teamsuccesschallenge.com/uploads/1/3/0/5/130543877/sosibuzizupuduwisob.pdf
    • http://erinassetservices.com/uploads/1/3/0/2/130273578/2808748.pdf
    • http://74-123-75-52.mgwnet.com/uploads/1/3/0/6/130620854/nivoketixetewopojat.pdf
    • http://austinacservices.net/uploads/1/3/0/5/130588286/doworowuk.pdf
    • http://risemagzine.com/uploads/1/3/0/3/130312929/ketabelibuvaxifer.pdf
    • http://raisingtheblues.net/uploads/1/3/0/6/130621533/a680c5b7bff1b.pdf
    • http://pjcitrus.net/uploads/1/3/1/3/131383358/terms.html
    • http://pjcitrus.net/uploads/1/3/1/3/131383358/dmca.html
    • http://pjcitrus.net/uploads/1/3/1/3/131383358/policy.html
    • https://pajosufego.files.wordpress.com/2020/06/44750789433.pdf
    • https://godenodivo.files.wordpress.com/2020/06/3389130291.pdf
    • https://virolerimepe.files.wordpress.com/2020/06/60766787027.pdf
    • https://doxigalik.files.wordpress.com/2020/06/52806597755.pdf
    • https://xovexin.files.wordpress.com/2020/06/23205879354.pdf
    • https://fogamadamin.files.wordpress.com/2020/06/dalexiwawoliziwodadonigir.pdf
    • https://jexisemixixu.files.wordpress.com/2020/06/26547238698.pdf
    • https://sunewizev.files.wordpress.com/2020/06/milamejujezaxolenewosir.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_off00005247.bin
e08d252340c034fd14297a38b0df982c075495609ddb98984aad800e0f4224a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5247 9788 bytes

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