Malicious PDF — malware analysis report

Static analysis result for SHA-256 14e01f889f53151d…

MALICIOUS

PDF

38.6 KB Authoring application: OpenOffice Draw
MD5: a895a6de293bf5784a5d45eeee47b0b3 SHA-1: e9c36835e58f932d13cedfcb0261255715de98d9 SHA-256: 14e01f889f53151d07d472b9e069e98809f06b09b90b90e47e57aa8fec8a36d1
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external PDF files, a common tactic for SEO link farms and phishing campaigns. The heuristic firings indicate a high likelihood of malicious intent, specifically related to phishing and the generation of algorithmically-created URLs. While no scripts were extracted, the structure and URL patterns strongly suggest a malicious document designed to redirect users to further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://kswinehk.com/uploads/1/3/0/5/130550698/digaragijed.pdf
    • http://aliveyouthmebc.com/uploads/1/3/0/8/130814843/lotolur_waxemejirul_jesofomotumile_xewarazajelud.pdf
    • http://motivationalkeynotespeakeralberta.com/uploads/1/3/0/3/130313391/gabunaratapor.pdf
    • http://powerlazer.party/uploads/1/3/0/7/130774972/67995.pdf
    • http://triyogadueren.com/uploads/1/3/0/5/130547999/voresukekenifusogo.pdf
    • http://powerdigmenergysolutions.net/uploads/1/3/0/6/130621601/voligizizo_togasinebe_vetadokav.pdf
    • http://daycareplayground.com/uploads/1/3/0/5/130588459/7128893.pdf
    • http://elder-pathways.com/uploads/1/3/0/7/130776113/labezujuvi_jalewaperu.pdf
    • http://presidio.me/uploads/1/3/0/5/130543107/3634462.pdf
    • http://elizabethgracepaperandpen.com/uploads/1/3/0/6/130621100/5794658.pdf
    • http://golrankings.com/uploads/1/3/0/5/130539457/vikivemuvag.pdf
    • http://nanomat2018.com/uploads/1/3/0/8/130814288/niwujifiru_tefasejufexene.pdf
    • http://raulfortes.com/uploads/1/3/0/6/130621176/9549330.pdf
    • http://grahamcycles.co.uk/uploads/1/3/0/5/130590314/sosulamofijapax.pdf
    • http://carnivorecrush.org/uploads/1/3/0/9/130969488/9606331.pdf
    • http://aufspurensuche.com/uploads/1/3/0/3/130323298/986e6.pdf
    • http://thediningroom745.com/uploads/1/3/0/8/130814225/44024.pdf
    • http://kiltedpotter.com/uploads/1/3/0/7/130739938/4252505.pdf
    • http://a1629462xstreamtravel.xsideas.com/uploads/1/3/0/7/130775388/130775388.html#dynamic+stretching+for+gymnastics

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003bbf.bin
5c33ad0f10cfec409f58d640d8650c6b32fb31c773c09d8e48cbe52bfee07aff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3BBF 7052 bytes

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