Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6e49f4b3396deef…

MALICIOUS

PDF

37.2 KB Authoring application: ImageMagick
MD5: f84ac953b215c3ffef2aadec320b17dc SHA-1: b943a213d7f6d190ec485b53e9cec05de73acc01 SHA-256: a6e49f4b3396deef41adaa1e25872d711d07962b2b35e75e04dad0073f32edbc
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to redirect users to malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. The document body, though partially corrupted, mentions 'Perimeter of irregular shapes worksheets', suggesting a lure to disguise the malicious links.

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://matio3d.com/uploads/1/3/0/6/130620551/busaluse-mitenar-zuwowenes-bofan.pdf
    • http://nashvilledancecooperative.net/uploads/1/3/0/4/130488500/27fb03a65cdb2de.pdf
    • http://azerothunited.com/uploads/1/3/0/7/130776131/niziwuxitoxewe.pdf
    • http://104450345337014885.com/uploads/1/3/0/8/130873786/5f581f1a0fc5b.pdf
    • http://happyrecipebox.com/uploads/1/3/0/4/130489072/44ab53abfd5f2bf.pdf
    • http://mrskramlsclass.com/uploads/1/3/0/4/130476180/kexoma.pdf
    • http://transportes-salazar.com/uploads/1/3/0/5/130551727/letuwoxuz.pdf
    • http://kireilifetherapy.com/uploads/1/3/0/6/130621868/574e70.pdf
    • http://naominnewmexico.com/uploads/1/3/0/6/130621626/29882fa91f2.pdf
    • http://samuelprovencher.net/uploads/1/3/0/5/130543667/b81611ec3b378c.pdf
    • http://alchemyperfume.com/uploads/1/3/0/3/130323622/linujuzopixax.pdf
    • http://mikalsmountainco.com/uploads/1/3/0/4/130476322/62a9a2a00fe041.pdf
    • http://otherworldlywaxesandwhatever.com/uploads/1/3/0/3/130323632/zomimotobo-zunero-diriwu-sejigam.pdf
    • http://arielledollinger.com/uploads/1/3/0/7/130776591/budapugadonotufete.pdf
    • http://www.sukkahshade.com/uploads/1/3/0/7/130739693/xibadugapofujudixubo.pdf
    • http://massagesearchmarketing.com/uploads/1/3/0/6/130603731/9133584.pdf
    • http://myspiritlevel.co.uk/uploads/1/3/0/2/130270874/memitofevenuba.pdf
    • http://thebigskyconservancy.com/uploads/1/3/0/2/130289279/rivizagidu-vubimi.pdf
    • http://alabamaservicedogs.com/uploads/1/3/0/4/130484005/gipurifakotakopa.pdf
    • http://2020blue.org/uploads/1/3/0/6/130604765/130604765.html#perimeter+of+irregular+shapes+worksheets+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000340f.bin
970043dcf828a44e89d358e8f7f5e413f58a5acfbb0f3031a5cde07cb17c5b88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x340F 7392 bytes

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