Malicious PDF — malware analysis report

Static analysis result for SHA-256 84f2605fdfa4bea7…

MALICIOUS

PDF

30.6 KB Authoring application: Soda PDF
MD5: 8e168ed48638323123675f36eabba677 SHA-1: 8f3de2cd091453c771f653516578b287886faac0 SHA-256: 84f2605fdfa4bea7e4398b114d34a5e85fae1351f0f9ea8f5ee877eb9550194d
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents hosted on various domains. This technique, identified as PDF_SEO_LINK_FARM, is commonly used to distribute malicious content or conduct phishing attacks. The ClamAV detection further confirms the malicious nature of the file. No scripts were extracted from this sample.

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://lena-lennrot-fitness.com/uploads/1/3/0/5/130590295/lefurumonewafepaguz.pdf
    • http://michellesellsidhomes.com/uploads/1/3/0/4/130476034/769fd1c79.pdf
    • http://thetapbox.com/uploads/1/3/0/6/130622091/wunazoxar_vibun_nepenu_tudevazopepuj.pdf
    • http://stdesignmatters.com/uploads/1/3/0/5/130551294/tididakajamate-ziwameviregi.pdf
    • http://anewyoubeauty.co.nz/uploads/1/3/0/4/130476469/2664103.pdf
    • http://reachsports.net/uploads/1/3/0/3/130379431/4504939.pdf
    • http://nightowlinvestments.com/uploads/1/3/0/6/130603814/4609009.pdf
    • http://sulefesip.propiedadesfibrastextiles.com/uploads/2020/01/28/kozekeputudisudapu.pdf
    • http://caitlindoula.com/uploads/1/3/0/7/130739967/wadijopuxonibug-xutugoluvi.pdf
    • http://laurenandersonrealty.com/uploads/1/3/0/5/130545597/jogonim_kekajomogil_fatatujivunok_togusetuwufewo.pdf
    • http://bamestate.com/uploads/1/3/0/4/130476272/8165695.pdf
    • http://nuobeijing.devsite-1.com/uploads/1/3/0/3/130324047/130324047.html#android+cardview+background+not+working

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001319.bin
962ca7e2164d9e217e2c7503473f0bb03cd3e5baa9ff1f5a769e1ade61bfa4fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1319 7916 bytes

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