Malicious PDF — malware analysis report

Static analysis result for SHA-256 67f6dc9f429b60a4…

MALICIOUS

PDF

36.0 KB Authoring application: PDFBox
MD5: 352db2d6e719fb24dd3716d833dd6dc1 SHA-1: f45c51c141275a19c5e53fe92438a06186bf28bf SHA-256: 67f6dc9f429b60a45430c52d7845d513098141d0b1701df52efa70545964a7a0
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO spam or to distribute further malware. The ClamAV detection and ML classifier strongly indicate malicious intent. While no scripts were extracted, the sheer volume of outbound links suggests a malicious campaign aimed at redirecting users or manipulating search engine results.

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://wellnesswithinpregnancy.com/uploads/1/3/0/6/130639454/nejejilotozifeluzok.pdf
    • http://uberscrudu.com/uploads/1/3/0/5/130588463/4451089.pdf
    • http://neurodiverseatl.org/uploads/1/3/0/4/130435772/8031272.pdf
    • http://www.myoquinn.com/uploads/1/3/0/5/130541103/3836462.pdf
    • http://mail.mainstvinyl.com/uploads/1/3/0/7/130775572/6933151.pdf
    • http://salvosurfboards.com/uploads/1/3/0/3/130379517/xuremotulije.pdf
    • http://11ange1s.com/uploads/1/3/0/5/130590355/fa2212.pdf
    • http://bransfordmedpsych.com/uploads/1/3/0/5/130550994/kufebodazuvizuv.pdf
    • http://chapagora.com/uploads/1/3/0/2/130289754/wiwanagorone.pdf
    • http://brooksroman.net/uploads/1/3/0/6/130620961/domoteb.pdf
    • http://myforeclosurelawyer.net/uploads/1/3/0/3/130313529/5326772.pdf
    • http://333tools.com/uploads/1/3/0/3/130379461/6789411.pdf
    • http://ahacia.com/uploads/1/3/0/7/130775506/xipivogaragib.pdf
    • http://jhrcarpentry.net/uploads/1/3/0/7/130738871/suduk.pdf
    • http://krygamusic.com/uploads/1/3/0/4/130490665/lepuv.pdf
    • http://genevievewilson.co/uploads/1/3/0/2/130270869/3d164f.pdf
    • http://elainetravel.club/uploads/1/3/0/6/130621932/nuzejagiwawobid-sijozisisap-jisudemibox-rowufu.pdf
    • http://whiteglovetreatmentllc.net/uploads/1/3/0/3/130313466/pobejomalu_bogivafonu_nuradelilazola_suzunarubedad.pdf
    • http://northcountypronetworkers.com/uploads/1/3/0/2/130289784/80e409.pdf
    • http://careaidecommunity.com/uploads/1/3/0/5/130539350/130539350.html#acromioclavicular+joint+sprain+rehabilitation+protocol

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f24.bin
e8ff940882574784b004656c0cb9cda298e032d879c8cc7626389120d405c7d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F24 7468 bytes

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