Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4f92bd9d809b640…

MALICIOUS

PDF

39.7 KB Authoring application: Serif PagePlus First seen: 2020-09-24
MD5: 9fae81f6744727d64cf799a94e65e701 SHA-1: 7ede05486deb726a389177fed67cc23f5c9e7d56 SHA-256: d4f92bd9d809b640d0d13714aa2c03441c9a36e47f3f8d25d2416eea48b3bc4f
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

This PDF file was identified as malicious by multiple heuristics, including a critical PDF_SEO_LINK_FARM alert indicating a large number of external links. The ML classifier also assigned a high probability of maliciousness. The embedded URLs suggest a phishing or malware distribution campaign, likely using the document content as a lure. No scripts were extracted from this sample, but the sheer volume of linked PDFs points to a coordinated effort to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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://national-energy.us/uploads/1/3/0/7/130775098/relifarel.pdf In PDF document text
    • http://michaelericksonteach.com/uploads/1/3/0/6/130620230/4617483.pdfIn PDF document text
    • http://craftsupporttherapy.com/uploads/1/3/0/4/130476203/5106111.pdfIn PDF document text
    • http://bergencabinets.com/uploads/1/3/0/6/130639762/6350945.pdfIn PDF document text
    • http://monaco-trade.com/uploads/1/3/0/4/130483759/6176182.pdfIn PDF document text
    • http://johnsura.com/uploads/1/3/0/7/130738915/50bce85ad2fc3.pdfIn PDF document text
    • http://empirewindsandstrings.com/uploads/1/3/0/7/130739782/dujetezerepozos-sagifemu-xuvimifafilesum.pdfIn PDF document text
    • http://locksmithwaukesha.com/uploads/1/3/0/4/130483400/ronuforepeji.pdfIn PDF document text
    • http://burnellinfinitymath.com/uploads/1/3/0/6/130620958/f25f3c45a.pdfIn PDF document text
    • http://insightosteopathicmedicine.net/uploads/1/3/0/3/130313000/fikotomebenelupariju.pdfIn PDF document text
    • http://mojavedrifter.com/uploads/1/3/0/6/130639780/5595508.pdfIn PDF document text
    • http://ludmeister.org/uploads/1/3/0/4/130483728/nupakol_wuzofu_polaret.pdfIn PDF document text
    • http://midshiftmedia.com/uploads/1/3/0/6/130639181/7130141.pdfIn PDF document text
    • http://www.omnisuppliesco.com/uploads/1/3/0/6/130639398/nejenazin.pdfIn PDF document text
    • http://maliciousprosecution.net/uploads/1/3/0/5/130550874/loradup_maroxanuzo_dowujesu_gegulose.pdfIn PDF document text
    • http://webdisk.grevecommuniek.eu/uploads/1/3/0/6/130639701/nibuzusosepogazawofi.pdfIn PDF document text
    • http://affordablebarndoors.com/uploads/1/3/0/4/130488197/redivonazojaxisifami.pdfIn PDF document text
    • http://mychamberofsecretss.com/uploads/1/3/0/6/130640061/domuwa.pdfIn PDF document text
    • http://fitnessdevilpodcast.com/uploads/1/3/0/7/130740045/8475234.pdfIn PDF document text
    • http://initnowmix.com/uploads/1/3/0/4/130436299/c488887d4bab.pdfIn PDF document text
    • http://www.bidgeebrown.com/uploads/1/3/0/7/130739986/890e8a.pdfIn PDF document text
    • http://merakicuts.com/uploads/1/3/0/7/130775679/294538.pdfIn PDF document text
    • http://cypress-it.com/uploads/1/3/0/2/130288926/442ff8afa4f.pdfIn PDF document text
    • http://allamericanhandyman.org/uploads/1/3/0/6/130605389/130605389.html#calendario+de+vacunas+2018+chileIn PDF document text

Related samples 2

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

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003842.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3842 8636 bytes
SHA-256: 0ab9944ec11abacd92a515fde62bdc803b57f0ef6561cbe96d107aa08f34624e

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