Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5ac96573356ab45…

MALICIOUS

PDF

76.2 KB Authoring application: OpenOffice.org
MD5: 211c5a29f9d6841850ec12294e362996 SHA-1: cc79b652fc681420a976b52dc989da5800907379 SHA-256: a5ac96573356ab457f83d0b6886a7309c47a534ad026c1633d42b09632ecd339
152 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious content. The PDF_SEO_LINK_FARM heuristic identified a large number of external links, with the primary domain being lakeshoreregionponyclub.com. This suggests the document's purpose is to act as a lure, redirecting users to potentially harmful sites through its extensive link farm. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://lakeshoreregionponyclub.com/uploads/1/3/0/4/130435520/nosarexupizu.pdf
    • https://tafoxufojesurib.weebly.com/uploads/1/3/0/4/130488850/wixizajudejegi.pdf
    • http://carprodip.com/uploads/1/3/0/5/130540583/8511217.pdf
    • http://livegreaterdayton.com/uploads/1/3/0/2/130272577/tuvuxuvutiwido.pdf
    • http://milieugeospatial.com/uploads/1/3/0/5/130541924/7085626.pdf
    • http://cacsmeeting.weebly.com/uploads/1/3/0/6/130639449/toxew.pdf
    • http://wibier.nl/uploads/1/3/0/4/130491594/f9be58dd.pdf
    • http://zow.krasota12.ru/uploads/2020/01/29/2b6b526dde396b.pdf
    • http://agapa.net/uploads/1/3/0/6/130604326/f1b79dd453.pdf
    • http://alixxpartners.com/uploads/1/3/0/3/130313091/b02f42b8e8466.pdf
    • http://lomixalewa.evanstonfcu.com/uploads/2020/01/28/6529357.pdf
    • http://targetspirit.com/uploads/1/3/0/4/130477293/zisasoguvebuloze.pdf
    • http://thetwigwarehouse.com/uploads/1/3/0/5/130551922/1677883.pdf
    • http://detailpoint.nl/uploads/1/3/0/2/130271232/7578276.pdf
    • http://13conversations.org/uploads/1/3/0/6/130639547/3460425.pdf
    • http://sandraowens.org/uploads/1/3/0/5/130589010/wavosilabigamunati.pdf
    • http://fuerst.si/uploads/1/3/0/6/130604088/2560625.pdf
    • https://nefenewigizik.weebly.com/uploads/1/3/0/2/130270993/zupuja.pdf
    • http://dancinggoatsanctuary.com/uploads/1/3/0/6/130603773/130603773.html#huesos+de+la+cara+vomer

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000015d0.bin
1bc973cfe0b310e6f4d779da5de411e087fc09a09a1f518bb2ee5407bc029bed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15D0 10048 bytes
font_01_sfnt_off00005b69.bin
d22e513df8390daf486231ba4dbf9f4b950850956270abf9779ef166f60858e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B69 16772 bytes

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