Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce37f9ca2d412c74…

MALICIOUS

PDF

41.5 KB Authoring application: PDFBox
MD5: 19d88fe8be5a4f9621a0b2964084401f SHA-1: 67d283bda13353a2a28cdfa3555d783da570079b SHA-256: ce37f9ca2d412c74a226881410dc2d52fcff41cd0096ced052ffd3e685bbd179
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to numerous PDF files hosted on various domains, suggesting a link farm or distribution network. The ClamAV detection and ML classifier also strongly indicate malicious intent, likely related to phishing or traffic redirection. 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://hellokendall.com/uploads/1/3/0/7/130740612/jadexuxowopu_gatuvafitope_buneredozerap_xezutiporefo.pdf
    • http://rightofwaysolutionsllc.com/uploads/1/3/0/6/130604083/2553139.pdf
    • http://www.tltalk.com/uploads/1/3/0/8/130873787/dixizozonelakuves.pdf
    • http://delaneygmeek.com/uploads/1/3/0/3/130313360/44f2c23.pdf
    • http://www.oddsandsudstavistock.com/uploads/1/3/0/6/130603958/5912010.pdf
    • http://rhworkplace.com/uploads/1/3/0/7/130775002/lixitev.pdf
    • http://taiguantravel.com/uploads/1/3/0/4/130476309/987e63ea7c3.pdf
    • http://pureclassgeelong.com.au/uploads/1/3/0/7/130776368/3cb41e.pdf
    • http://yamayogacollective.com/uploads/1/3/0/6/130604445/662211.pdf
    • http://topincomemakers.com/uploads/1/3/0/5/130544591/efc666bd6f11.pdf
    • http://bobatree.site/uploads/1/3/0/4/130435629/82d92c6bf2185.pdf
    • http://millerschoolmaster.com/uploads/1/3/0/2/130270894/bekidazipuveko-wefekerawo-rutaxisuruta-vuzarinugag.pdf
    • http://greiderhillyerlaw.com/uploads/1/3/0/7/130775506/7938001.pdf
    • http://belleaircommunityfoundation.com/uploads/1/3/0/5/130539128/0ef61f9ebdb12c.pdf
    • http://mcphc.bpmtc.com/uploads/1/3/0/7/130775817/9260149.pdf
    • http://lanesportablerestroomsandseptic.com/uploads/1/3/0/5/130543373/pufoloz.pdf
    • http://www.silveroceangroup.com/uploads/1/3/0/6/130621031/d900f.pdf
    • http://mimismushrooms.com/uploads/1/3/0/7/130740524/b35bf7a6db2f4f2.pdf
    • http://beyondinclusion.org/uploads/1/3/0/7/130775456/korubezejim.pdf
    • http://iclaudiainc.net/uploads/1/3/0/2/130289448/2577546.pdf
    • http://74-123-73-130.mgwnet.com/uploads/1/3/0/9/130969062/130969062.html#how+to+convert+pages+document+to+pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000350a.bin
e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x350A 2652 bytes
font_01_sfnt_off0000411b.bin
095a86ffef4c30d5c2b610352a19b41abf6ab638a91904b335c4e41428f476fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x411B 8300 bytes

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