Malicious PDF — malware analysis report

Static analysis result for SHA-256 72397bbc96fc5400…

MALICIOUS

PDF

34.8 KB Authoring application: GIMP
MD5: e1f55220e13fa686084799ba0c011e3a SHA-1: d6e2a4585876742408de1dc6c8cb9f2b8bf7fb5a SHA-256: 72397bbc96fc54000a7c558ebe84524f1ac1b772870b465f99ca79a29102238e
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 poisoning or to redirect users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. While no scripts were extracted, the sheer volume of external links suggests a phishing or malware distribution attempt.

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://diamondlgoats.net/uploads/1/3/0/5/130589124/aa98d1f5e2894.pdf
    • http://amberbeuthien.com/uploads/1/3/0/4/130490117/kemutorosa.pdf
    • http://dreamamazingtravel.com/uploads/1/3/0/7/130776341/1240968.pdf
    • http://oasischronicles.com/uploads/1/3/0/4/130483295/gikosuvelirak-sigelo-mufimalikebe-rasita.pdf
    • http://mlj-law.com/uploads/1/3/0/4/130435795/daguwijenubuwuf_mumisuvogepe_rojomozirilera.pdf
    • http://justinchamplin.com/uploads/1/3/0/5/130543305/tujoti.pdf
    • http://motovillaitalia.net/uploads/1/3/0/7/130738778/fb500f8924e.pdf
    • http://grouperdate.com/uploads/1/3/0/4/130435738/97743ca33e172ee.pdf
    • http://cakenetwork.us/uploads/1/3/0/3/130323286/guxarilibajurunavivo.pdf
    • http://sima-se-design.com/uploads/1/3/0/2/130289756/141d8f0b566c8.pdf
    • http://motortour.online/uploads/1/3/0/6/130639307/20f20b1db.pdf
    • http://miraprintservices.com/uploads/1/3/0/8/130874108/4ce4ab7ec6821ed.pdf
    • http://northvanmusicacademy.ca/uploads/1/3/0/2/130287302/pizawowijugagib.pdf
    • http://spicysnack.com/uploads/1/3/0/6/130639199/d83517f07dbd28.pdf
    • http://mezzosoprano.site/uploads/1/3/0/7/130739827/zejowigi.pdf
    • http://insideou.net/uploads/1/3/0/5/130551491/vodudojukafuj.pdf
    • http://mk5ksandiego.com/uploads/1/3/0/6/130621278/worolabireb.pdf
    • http://yunisquare.com/uploads/1/3/0/3/130379178/4765274.pdf
    • http://nicolitulk.com.au/uploads/1/3/0/6/130621873/130621873.html#bakteri+staphylococcus+haemolyticus+adalah

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002bdb.bin
dc837563886f0d8c88166dde99f654310e803b7e19e448682b5d4332bece3ca9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BDB 7360 bytes

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