Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6fa8f39fa55bf4a…

MALICIOUS

PDF

43.9 KB Authoring application: Poppler-utils
MD5: 968d9218bc2211fb4b743876c229499c SHA-1: de1c592431a70411d2e6055147a78979051f420f SHA-256: b6fa8f39fa55bf4a9632e85099457021acc74c6947feb71a8dd945c8d621a514
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious by ClamAV with the signature Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a significant number of embedded external links, a common tactic for phishing campaigns or distributing further malware. The heuristic PDF_SEO_LINK_FARM specifically flags this behavior, indicating a link farm designed to lure users. The document body contains text related to medical conditions and includes several URLs, reinforcing the phishing or malicious redirection intent.

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://theeldqueen.com/uploads/1/3/0/2/130289409/lozodasij.pdf
    • http://muso.katerinariazanova.ru/uploads/2020/01/29/b617776b6.pdf
    • https://jofikovevaja.weebly.com/uploads/1/3/0/5/130539871/6551399.pdf
    • http://fetunepa.gdetabletka.ru/uploads/2020/01/28/buwuzaxenolepizepedi.pdf
    • https://bitobotew.weebly.com/uploads/1/3/0/4/130476074/xorir_zumulaj_buvome_vasekowi.pdf
    • http://apassionforpainting.weebly.com/uploads/1/3/0/6/130621439/pofowokubusudad.pdf
    • http://theindoorhockeyleague.com/uploads/1/3/0/6/130622013/rivafifejesa.pdf
    • http://tiedyeharvest.com/uploads/1/3/0/2/130271237/1c93b34efabd082.pdf
    • http://bigskyaerialphoto.net/uploads/1/3/0/2/130287839/c90351417cf.pdf
    • http://myriuwedding.com/uploads/1/3/0/5/130589083/4404971.pdf
    • http://mmjplantation.org/uploads/1/3/0/5/130590235/nowuvuvolerov_fikuderikupoba_zogevosebito.pdf
    • http://mshannahfreeman.com/uploads/1/3/0/6/130639343/sitoxopuvirapiruda.pdf
    • http://myrolemodel.info/uploads/1/3/0/6/130620923/rumomokoduduba-wexogobatug.pdf
    • http://colddiamnd.com/uploads/1/3/0/5/130544190/130544190.html#penyakit+ascariasis+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013a4.bin
9f426208459cdad3f3a44e64fae5204a256fa887ba608ff1c98830f948c704d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13A4 8056 bytes

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