Malicious PDF — malware analysis report

Static analysis result for SHA-256 60be1d13ce8b596f…

MALICIOUS

PDF

37.5 KB Authoring application: Karbon
MD5: c9ebbcad25f2e254eed8f4ab5f2500dc SHA-1: b5502eec197fc47ee6f1df0d26265d577489595a SHA-256: 60be1d13ce8b596f306b8dcf480213c9ad7550478e904fe4c9e778eeb1b986c9
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF 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. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to potentially harmful content, aligning with phishing or content distribution tactics.

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://yessicacurielmontoya.com/uploads/1/3/0/2/130272606/fixesepe.pdf
    • http://riz.womanforyou.info/uploads/2020/01/27/4924637.pdf
    • http://lipitapoze.ryazremont.ru/uploads/2020/01/28/6321013.pdf
    • http://getadvert.ru/uploads/2020/01/27/ziribenasewivokusadu.pdf
    • http://bethelliottlmft.com/uploads/1/3/0/6/130620751/tavez-xejipemidepivo-zipupuji.pdf
    • http://paradigmfitness.net/uploads/1/3/0/2/130270942/wusederuk.pdf
    • http://fom.kazan-mice.ru/uploads/2020/01/28/nemar-kevobuwutudugu-wemosifate-jokazito.pdf
    • http://xuluketex.bestqick.net/uploads/2020/01/29/pasodu_vapibof_dazadobiwov_natawa.pdf
    • https://sabiware.weebly.com/uploads/1/3/0/2/130289201/1011464.pdf
    • http://bbf-cafe.store/uploads/1/3/0/5/130546759/34afc51b9.pdf
    • http://zakafum.raphaacupuncture.com/uploads/2020/01/28/tamitixa.pdf
    • http://xudadar.leaderaccount.ru/uploads/2020/01/27/4c27e5c639db4.pdf
    • http://dalidiwe.brainit.ru/uploads/2020/01/28/1600301.pdf
    • https://pomanipusutuluw.weebly.com/uploads/1/3/0/5/130539305/a3ef26f.pdf
    • https://fanusosedavin.weebly.com/uploads/1/3/0/4/130483552/1813fb6.pdf
    • https://padorose.weebly.com/uploads/1/3/0/6/130604859/4021946.pdf
    • http://pubali.ez-knowledgebase.com/uploads/2020/01/28/6524631.pdf
    • http://rainbowquranrus.com/uploads/2020/01/28/jogixexomu.pdf
    • http://misssoutheastpageantry.us/uploads/1/3/0/6/130639762/130639762.html#hiragana+writing+practice+sheet+pdf
    • http://www.adobe.com/).Noto
    • http://www.google.com/get/noto/http://www.adobe.com/type/This
    • http://scripts.sil.org/OFLNoto

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000014c0.bin
c22b2021f37fb489d5c78571c5669bfbe83b048b9aaed0ab70102f7698cf5152		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14C0 7352 bytes
font_01_sfnt_off000051bc.bin
1e3b8687ac1235e80d069625df5dcdf6556234c40938eaf7474646f884e768a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51BC 4428 bytes

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