Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe8071e8f8000086…

MALICIOUS

PDF

35.6 KB Created: 2020-05-26 21:23:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86cc4e469e70e8e9f0737dfc86cb67ca SHA-1: 0d8bdca17881477765bc2d77b4d116d59e4d1d3c SHA-256: fe8071e8f8000086832e24d2acf38d4ffbdbda6b196f7c85f2a97ad7533fbadf
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to other PDF files hosted on various domains. This pattern is indicative of a link farm or SEO poisoning attack, designed to drive traffic to potentially malicious content. The embedded URLs suggest a lure related to 'media ecology theory' or similar topics, likely to entice users to click through to the linked PDFs. No scripts were extracted, and the document body is heavily obfuscated, limiting further analysis of the immediate payload.

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://00303698xstreamtravel.xsideas.com/uploads/1/3/0/6/130621208/130621208.html#media+ecology+theory
    • http://mta-sts.mx.berkeleybeast.com/uploads/1/3/0/7/130776169/767625.pdf
    • http://jenn4judge.com/uploads/1/3/1/3/131383609/nikekuroxumo-wogunugomuz-faduvu.pdf
    • http://ginkgopress.com/uploads/1/3/0/7/130776324/didaruvaxuxiledi.pdf
    • http://soonerliquidations.com/uploads/1/3/1/0/131070645/sofoguzifozevi_simekomisinakaw_rokinamolarexe.pdf
    • http://cpanel.phimi.pt/uploads/1/3/1/4/131408230/mafagazofej_lazumefas_bigowumeri_zuxajulepudox.pdf
    • http://amysbargainoutlet.com/uploads/1/3/0/4/130435690/zamemuwipole.pdf
    • http://ph7llc.com/uploads/1/3/0/3/130323235/b3491350c40b0e.pdf
    • http://heartventure.net/uploads/1/3/1/4/131453046/pawetanapiwo_pudusikuwi_dopid.pdf
    • http://bucurlamarunt.com/uploads/1/3/1/1/131163957/fenalujase.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_off00005f17.bin
2f6e7294d5e27de1d6fa0a93c0e64279b8db470fdb2be55c57d6a5b4398a4303		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F17 10524 bytes

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