Malicious PDF — malware analysis report

Static analysis result for SHA-256 62e477bd9efda73c…

MALICIOUS

PDF

35.4 KB Authoring application: QPDF
MD5: 837e5aaa0fe91a71b470d5cd4116c833 SHA-1: 61ebee230b5f8cd3d1f024849416968b77f9e7da SHA-256: 62e477bd9efda73c5431fb7fd8821dd840563bd856fb4abbeef6a37c5fe79627
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by multiple heuristics, including a critical finding for a large number of external links, and a machine learning classifier. ClamAV also detected it as phishing malware. The embedded URLs, such as http://mytherapybox.com/uploads/1/3/0/5/130588772/kexogaluza_finupe_vupugubepedebiw.pdf, likely lead to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://mytherapybox.com/uploads/1/3/0/5/130588772/kexogaluza_finupe_vupugubepedebiw.pdf
    • http://nicolasvaradi.com/uploads/1/3/0/6/130639436/numabegawasuzavuso.pdf
    • http://nwapetgrooming.com/uploads/1/3/0/4/130494389/wudulirokot-davufoniko-sudiwajul-mifenunulidi.pdf
    • http://nmcawomenscricket.com/uploads/1/3/0/5/130551054/kuxajojezexugigu.pdf
    • http://taideinto.com/uploads/1/3/0/6/130639410/gufinadamizoxowu.pdf
    • http://isanadventure.com/uploads/1/3/0/6/130639994/dopepik.pdf
    • http://muchasgracias.com/uploads/1/3/0/8/130814205/riwes-nopit.pdf
    • http://cindihinch.com/uploads/1/3/0/6/130603807/xugetonowobiw.pdf
    • http://mrlob9000.net/uploads/1/3/0/4/130489725/5479849.pdf
    • http://jonijohnston.com/uploads/1/3/0/5/130550706/ccaa6dd984.pdf
    • http://my-trg.com/uploads/1/3/0/7/130740141/vidorerefarar_zofolido.pdf
    • http://thaitogether.org/uploads/1/3/0/7/130776026/8667039.pdf
    • http://doubleeagleadvisers.com/uploads/1/3/0/6/130604836/zotilodi.pdf
    • http://mrsbhatt.com/uploads/1/3/0/5/130589186/6146257.pdf
    • http://www.homefinderforme.com/uploads/1/3/0/5/130545382/sizuva.pdf
    • http://sosdetail.com/uploads/1/3/0/7/130738548/boputafatipok.pdf
    • http://mcmwebbuilder1.devsite-1.com/uploads/1/3/0/4/130488759/130488759.html#butterfly+fly+away+chords+piano

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000014c8.bin
ab20c30920376e190ad370603dc8ba6d0124e42c05fa6926078797d730a94485		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14C8 8412 bytes

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