Malicious PDF — malware analysis report

Static analysis result for SHA-256 82ff74a91c27ebc8…

MALICIOUS

PDF

35.5 KB Authoring application: LibreOffice
MD5: 59d842890680cafd9ad00e0c0caf7b69 SHA-1: e8ab08508c781dcb17dd6962a18b77335d63e5f0 SHA-256: 82ff74a91c27ebc8f8d73cf3786c7f193f1cc324db430bf62f63681661c9b349
120 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, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a phishing or malware distribution campaign. The ClamAV detection further confirms the malicious nature of the file. No scripts were extracted from this sample.

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://maineloanprocessing.net/uploads/1/3/0/2/130289515/3c81aaac089d79d.pdf
    • http://musicstepslearningacademy.net/uploads/1/3/0/2/130291545/4c7e2629f9d4b3.pdf
    • http://www.eltorominimercado.com/uploads/1/3/0/7/130775310/fofaxi.pdf
    • http://sgcompany.org/uploads/1/3/0/2/130273803/faluvuvatemapiwop.pdf
    • http://therectum.net/uploads/1/3/0/4/130483866/4447846.pdf
    • http://zoeandmichaelswedding.com/uploads/1/3/0/4/130476010/cbfd33a33d5ad.pdf
    • http://hazluxvip.com/uploads/1/3/0/7/130739037/zeguxe.pdf
    • http://mail.humptyjumpty.co.za/uploads/1/3/0/9/130969279/9163870.pdf
    • http://www.sandreed.com/uploads/1/3/0/5/130551124/suxipozewower_nuzokaliwuboz.pdf
    • http://melfb.com/uploads/1/3/0/5/130541904/3989508.pdf
    • http://www.youngengineer.wales/uploads/1/3/0/4/130489342/6022526.pdf
    • http://www.greenschoolsnational.com/uploads/1/3/0/6/130639477/4682452.pdf
    • http://www.itsmconsulting.org/uploads/1/3/0/2/130288986/jelozunade.pdf
    • http://kulfund.com/uploads/1/3/0/6/130640146/8f42ab.pdf
    • http://robotics.team/uploads/1/3/0/3/130313429/xejedutuxejapi-pugulobogi-nuliruso.pdf
    • http://mx.sharonbrush.com/uploads/1/3/0/8/130874458/lewujowuwefo-vurovuvow-pisitabilawi.pdf
    • http://pomegranateprogramming.com/uploads/1/3/0/6/130620669/23413ffb.pdf
    • http://www.giardinidisanpaolo.it/uploads/1/3/0/7/130740166/4759330.pdf
    • http://www.familydogsocal.com/uploads/1/3/0/8/130814863/lowejalibetiza.pdf
    • http://455.bpmtc.com/uploads/1/3/0/7/130739286/130739286.html#adobe+program+to+combine+pdf+files

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002dd9.bin
958cd635f1759190fc7376ffe03a283b4c6e849edf6655426f369daf6a0373be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2DD9 7252 bytes

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