Malicious PDF — malware analysis report

Static analysis result for SHA-256 4244a512bc4ca877…

MALICIOUS

PDF

36.5 KB Authoring application: Serif PagePlus
MD5: fa9ce7d6d89238fc5e8456487f5ad284 SHA-1: d7919623966f7c835a70ad7e4198ef432b10f402 SHA-256: 4244a512bc4ca877d8a8a0744303665bb6495af35bfb28f3853ac92c9c9b70e5
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO spam or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. The document body is heavily obfuscated and unreadable, but the presence of numerous external links suggests a delivery mechanism for further malicious payloads or phishing content.

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://ryanlindveit.com/uploads/1/3/0/5/130588676/8733470.pdf
    • http://nazmuska.com/uploads/1/3/0/7/130739141/fazudotomilaxunivez.pdf
    • http://mypropertyquestion.com/uploads/1/3/0/5/130550742/8426003.pdf
    • http://myrtlescrawl.com/uploads/1/3/0/5/130550712/7265713.pdf
    • http://dicebytes.com/uploads/1/3/0/5/130588494/miwafikis.pdf
    • http://fitspit.online/uploads/1/3/0/4/130483806/satagu.pdf
    • http://takemywager.com/uploads/1/3/0/3/130323298/vigijupavoxika.pdf
    • http://andrewflemingmedia.com/uploads/1/3/0/6/130621015/1104572.pdf
    • http://rehabilitationmanagement.net/uploads/1/3/0/2/130270911/limujep.pdf
    • http://oakcreekcenter.org/uploads/1/3/0/3/130313306/8900627.pdf
    • http://kathyfitzsimmonsart.com/uploads/1/3/0/5/130539340/2963963.pdf
    • http://www.triamantfinance.eu/uploads/1/3/0/6/130620859/5642617.pdf
    • http://www.adentakorea.com/uploads/1/3/0/7/130776692/gafuves.pdf
    • http://corcoranbottleshop.com/uploads/1/3/0/3/130312973/6824836.pdf
    • http://doctors-daughters.com/uploads/1/3/0/3/130323962/4370763.pdf
    • http://svreunion.com/uploads/1/3/0/7/130739224/8545473.pdf
    • http://2nddatehutch.lonemami.com/uploads/1/3/0/2/130287553/ba770.pdf
    • http://whitechocolategrille.com/uploads/1/3/0/6/130604700/7b973eb.pdf
    • http://www.liberalbsfilter.com/uploads/1/3/0/2/130292148/gapakojikofa.pdf
    • http://redandrio.com/uploads/1/3/0/5/130544687/7726239.pdf
    • http://mofflongboards.com/uploads/1/3/0/5/130551208/4635c6cb941.pdf
    • http://www.vibrs.com/uploads/1/3/0/7/130739175/130739175.html#part+time+employment+contract+sample+pdf
    • http://www.liberalbsfil

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030d5.bin
546d8717b2a757b2f2f48fa767b7a5ca7c04f2910e897902a464f1db1b2fdc9e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x30D5 7080 bytes

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