Malicious PDF — malware analysis report

Static analysis result for SHA-256 5931cfd2430ed659…

MALICIOUS

PDF

33.9 KB Authoring application: Poppler-utils
MD5: 05de6109b26bf0b6468385387b3c114b SHA-1: 349cd82f78335c6e51ddf238e3d17571417df94d SHA-256: 5931cfd2430ed65999deb9dd76a916b74bc9b60d4a49c0b3eec83c8315d2b740
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO poisoning or to distribute phishing content. The ClamAV detection and ML classifier strongly indicate malicious intent. The document body, though partially corrupted, contains references to 'Adobe animate alternative free' and includes a significant number of external URLs, reinforcing the lure to external 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://simplymetering.com/uploads/1/3/0/3/130313700/guvunozidotewafab.pdf
    • http://appskillz.com/uploads/1/3/0/4/130489175/nabewolelaxaz.pdf
    • http://message6666.com/uploads/1/3/0/7/130739090/kuwikul_valofisoz_gabaw.pdf
    • http://corakammeyer.com/uploads/1/3/0/2/130270808/59acc.pdf
    • http://myprintpad.com/uploads/1/3/0/7/130775742/1607891.pdf
    • http://www.gabbee.co.uk/uploads/1/3/0/8/130814479/0f4057c0b7033.pdf
    • http://caplonsystems.com/uploads/1/3/0/6/130604247/zumusevojo.pdf
    • http://my-life-by-me.blog/uploads/1/3/0/5/130551270/08fc30cc93747.pdf
    • http://islandways.fun/uploads/1/3/0/6/130604935/wuxezogomumaz_rilopovaluw_zokavizizotefez_kixoguxi.pdf
    • http://boozybakerygames.com/uploads/1/3/0/8/130813898/3765766.pdf
    • http://london-office-4.pleasingfood.com/uploads/1/3/0/6/130621068/130621068.html#adobe+animate+alternative+free

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003012.bin
7614dd895df63d660ae1de295bb947c3cdaa68ee2d66df9503223c4c824c33a2
pdf-font-stream PDF embedded font (sfnt) at offset 0x3012 7348 bytes