Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8325a493b828690…

MALICIOUS

PDF

131.9 KB Authoring application: Nitro PDF First seen: 2020-09-07
MD5: d1eaa3b4aa9834e4fdb744bf827ce6f2 SHA-1: b12aec5eea45f304e0a0fa253b338787bdef5d78 SHA-256: d8325a493b828690ddf79b0a3dc6ec6e3f6c2790ddf906c161cdae4478de6c9c
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a common tactic for SEO poisoning or distributing malicious content. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' strongly suggests the document's purpose is to trick users into believing they are owed money or a prize, requiring them to click the links to proceed. The embedded links are likely to lead to further phishing or malware delivery stages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://kidsfiresafetytips.net/uploads/1/3/0/3/130323674/fibugawog.pdf In PDF document text
    • http://ruxizhang.com/uploads/1/3/0/6/130622095/tumakid_seniku.pdfIn PDF document text
    • http://karenandsteve.net/uploads/1/3/0/2/130272477/mixejegu.pdfIn PDF document text
    • http://gowov.doctsarev.ru/uploads/2020/01/28/6646741.pdfIn PDF document text
    • http://sandiegotopdentist.com/uploads/1/3/0/4/130483290/7865169.pdfIn PDF document text
    • http://metlifeunpaidpensions.com/uploads/1/3/0/4/130489054/falopulivu_kobex_fobolewidoxamus_miwedokidor.pdfIn PDF document text
    • http://louiseneaveportfolio.com/uploads/1/3/0/5/130588962/zodomutumexasaful.pdfIn PDF document text
    • http://prisonlifeline.net/uploads/1/3/0/3/130379696/fodosiwejafopive.pdfIn PDF document text
    • http://laxa.vivahome.ru/uploads/2020/01/28/xiludexuvugipufi.pdfIn PDF document text
    • http://mindfullyliving.net/uploads/1/3/0/3/130379610/36b82ceaf29c7.pdfIn PDF document text
    • http://across-science-art-creation-formation.com/uploads/1/3/0/2/130272552/zolemofazarix_datuwuvuv_deduwusab.pdfIn PDF document text
    • http://dgaccountingtax.com/uploads/1/3/0/5/130538922/ramem_filodoropoz.pdfIn PDF document text
    • http://mhrandlenovels.com/uploads/1/3/0/8/130814408/130814408.html#hysterectomy+and+endometrial+ablationIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000153b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x153B 10220 bytes
SHA-256: 6f5ce371c2d5aeb1fb149a46a8d520478c937c1069585c1e76774c1183f391ad
font_01_sfnt_off0001c39c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C39C 16204 bytes
SHA-256: f31c439e28d0137206b91a151f21343900f846ed9ff070250fbe82eb1cc7da1d

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