Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ce68a1942f28ee4…

MALICIOUS

PDF

34.2 KB Authoring application: Inkscape
MD5: 6e7b83420f58fb2a92f9d97e06467462 SHA-1: 9b2dd302755cab094b8135f48bf997eb9fe6eee4 SHA-256: 5ce68a1942f28ee40fc3d33dcc9c157fc1b460ddf51efefea54b87f50cb81062
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO spam or to distribute malware. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as phishing. The document body itself is largely unreadable due to encoding issues, but the presence of numerous external links is the primary indicator of malicious activity.

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 https://pumeremen.weebly.com/uploads/1/3/0/4/130483781/bemageres_zewemuruxarodot_tikivu_nabopujug.pdf
    • https://taxegurunon.weebly.com/uploads/1/3/0/5/130544086/gebumozo_pawodigame_nuwofox.pdf
    • http://csobecancour-en.com/uploads/1/3/0/6/130639526/xizobuwikefu_femolaf_jagurunexuk.pdf
    • https://judosepuwolu.weebly.com/uploads/1/3/0/4/130483325/227f941c58cb.pdf
    • https://gepifemekin.weebly.com/uploads/1/3/0/6/130603676/xererazodude.pdf
    • http://mrstodd.net/uploads/1/3/0/2/130287881/ximanuka.pdf
    • http://teachingandlearningtogether.com/uploads/1/3/0/4/130488754/4529736.pdf
    • https://duredovopozot.weebly.com/uploads/1/3/0/5/130551054/a0e99bb597cde.pdf
    • http://lilyhockcreations.com/uploads/1/3/0/6/130604878/ruzoka.pdf
    • http://restorehouse.org/uploads/1/3/0/4/130488975/wuluja.pdf
    • http://catamaranadastra.com/uploads/1/3/0/2/130272389/vikuvolotujewup.pdf
    • https://wepujofi.weebly.com/uploads/1/3/0/2/130272435/vugabor.pdf
    • http://sanelylife.com/uploads/2020/01/27/8178634.pdf
    • http://portal.createweb24.com/uploads/1/3/0/5/130588659/130588659.html#addition+without+regrouping+for+grade+1+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001364.bin
324d7931ea79b25b76610ef5a276d33f30cb6ef20b7841e3adef073387f0fe30		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1364 7484 bytes

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