Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ebe6131c247d562…

MALICIOUS

PDF

39.2 KB Authoring application: Nitro PDF
MD5: 56ab146bdd283abb7b145696226780af SHA-1: ed37f8922bf4972412bc9825210e51401d8fba48 SHA-256: 0ebe6131c247d56211728345248dd805cb2f10fd5fffbb9c845ee093141eb8a4
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, a technique often used for SEO spam or to redirect users to malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as phishing. While no scripts were explicitly extracted, the nature of the embedded links suggests a potential for further malicious content delivery.

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://hostel-orel.com/uploads/2020/01/27/8cf04.pdf
    • https://dizegivobetoge.weebly.com/uploads/1/3/0/4/130476272/2660209.pdf
    • http://gov.bluetp.com/uploads/2020/01/29/9680625.pdf
    • https://tojiwepese.weebly.com/uploads/1/3/0/6/130603823/bisupokiduzesar.pdf
    • http://dwarvenworkshop.com/uploads/1/3/0/2/130288511/koxutawigabixajode.pdf
    • http://bom.colorfulinkstudio.com/uploads/2020/01/28/buposotalejevojipu.pdf
    • http://coombesandgabbie.com/uploads/1/3/0/4/130476747/tobuwixilakege-pebixi-ketozuze-vufokewefesot.pdf
    • http://fora.majesticpin.site/uploads/2020/01/27/rizuvadabugele-faxavaribagepes-bojetu-gejironiwan.pdf
    • https://fagiluruves.weebly.com/uploads/1/3/0/5/130543279/mugujarodedu.pdf
    • http://wat.token-movil.com/uploads/2020/01/28/wegawujiwag.pdf
    • http://rochesterepoxycoatings.com/uploads/1/3/0/3/130324234/4619393.pdf
    • http://wumobufik.lifequotes.shop/uploads/2020/01/28/kolumebinozixixoni.pdf
    • http://moneytalkwithtiff.com/uploads/1/3/0/5/130538841/31a729eb.pdf
    • http://1repa.ru/uploads/2020/01/27/julakuwovazuvi_fomabimefeb_putiwol_tujuvo.pdf
    • https://jedawovabofux.weebly.com/uploads/1/3/0/5/130539438/jebajubatiwuva-panuxaxij-zemovokusowaf-sonosatebe.pdf
    • https://vozidasemitegaf.weebly.com/uploads/1/3/0/6/130604422/vaxikedajat-pexugomo-xukoj-guzurusa.pdf
    • https://jeselexejejofan.weebly.com/uploads/1/3/0/2/130273623/43a2d8172ff0423.pdf
    • http://joycrownedproducts.com/uploads/1/3/0/6/130621901/8574634.pdf
    • http://mdp.gallery/uploads/1/3/0/6/130620826/3713229.pdf
    • http://ngochastore.com/uploads/2020/01/28/vafemujum.pdf
    • http://rachaelmaephotography.com/uploads/1/3/0/5/130539336/08172.pdf
    • http://bikinibodyforlife.com/uploads/1/3/0/6/130621110/devam_vizobozanobome.pdf
    • http://bejustalittlebetter.com/uploads/1/3/0/6/130620868/130620868.html#cholangitis+management+guidelines+australia

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001777.bin
42639ad94c949e5032abb4b8e9a3eb27035a8d672ac7e165a5d0c01ea756dc3f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1777 8652 bytes

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