Malicious PDF — malware analysis report

Static analysis result for SHA-256 5be413b5095cb20f…

MALICIOUS

PDF

37.0 KB Authoring application: OpenOffice.org
MD5: ba487c85cc0f28ed42199a45a4661e09 SHA-1: 607842d32d6ccd278e5e2d61caece3ee5aac374a SHA-256: 5be413b5095cb20fedd7591e0de7d8c8d9251abe9123917e122b48cceb7547df
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file exhibits characteristics of a link farm, with a large number of embedded URLs pointing to other PDF files. This is a common technique used to obscure malicious activity and redirect users to potentially harmful content. The ClamAV detection and ML classifier further support its malicious nature, indicating it is likely a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://mpunlimited.com/uploads/1/3/0/7/130738753/ed4bf.pdf
    • http://www.lucylashstudio.com/uploads/1/3/0/8/130873957/tixafemovidig-dudujelo-nodisuxufowobuf.pdf
    • http://aiselementary.com/uploads/1/3/0/6/130621261/7404a3509.pdf
    • http://www.jonascain.net/uploads/1/3/0/9/130969236/rujevet-gurubinufi-bimal-nejepumulelidal.pdf
    • http://returnoninitiative.us/uploads/1/3/0/7/130775918/guvuwapuxufaru.pdf
    • http://dematic-university.com/uploads/1/3/0/7/130740514/dibek.pdf
    • http://www.theslayway.org/uploads/1/3/0/6/130621439/892838.pdf
    • http://txplanetsub.com/uploads/1/3/0/6/130604631/135125c310.pdf
    • http://holypost.info/uploads/1/3/0/7/130739746/tidatetuguzivuwuvede.pdf
    • http://innerfoundations.org/uploads/1/3/0/3/130323206/49603.pdf
    • http://sharpescope.com/uploads/1/3/0/5/130589094/rekuwo-lawanuguse.pdf
    • http://faithful32x32.com/uploads/1/3/0/6/130621969/nurifezamitanox.pdf
    • http://cadencehealth.co.uk/uploads/1/3/0/7/130739916/608415.pdf
    • http://justjess.me/uploads/1/3/0/5/130550885/makubosaf_zowagod.pdf
    • http://nawrocki-law.com/uploads/1/3/0/8/130874530/mulovuzino-muxelosisax-bamijoranilu-fevomobol.pdf
    • http://institutoterravida.org/uploads/1/3/0/4/130493714/nagosetotetow.pdf
    • http://der-atemraum.com/uploads/1/3/0/7/130775690/6806219.pdf
    • http://icleanup.net/uploads/1/3/0/7/130776452/vazobaravuwezas_kodivebagapu_pagunelew_debuwure.pdf
    • http://thehealthygroove.com/uploads/1/3/0/7/130775404/rowomotodeviz_tapasurezufisex_wipem.pdf
    • http://siteless.club/uploads/1/3/0/6/130621708/kinenomix_koxawex_fesidagiv.pdf
    • http://highmarginsinc.com/uploads/1/3/0/6/130604292/roledukupobu_gaxon_likalulenepof.pdf
    • http://aerosportoutfitter.com/uploads/1/3/0/5/130538902/7d47ebe4587.pdf
    • http://www.diagmal.eu/uploads/1/3/0/6/130640111/768000.pdf
    • http://101redirect.com/uploads/1/3/0/6/130620207/bixasizubi-gejifaner.pdf
    • http://autodiscover.jenr8.com/uploads/1/3/0/6/130639363/130639363.html#multivariate+gaussian+distribution+density

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000307a.bin
e55d5514607a57350ac55a3526b70add356d0588ba1b8b7d02fa06d15a1a42f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x307A 6576 bytes

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