Malicious PDF — malware analysis report

Static analysis result for SHA-256 282475f1ba005b20…

MALICIOUS

PDF

47.8 KB Authoring application: GIMP
MD5: d9c42aa3226ec5d864026e916632bec2 SHA-1: 1d1f652d7dc5ddf0ff4c07891ea6856eded43df4 SHA-256: 282475f1ba005b206be4268d43fe2349dd45a820cabbb7f1663ad3a37387290f
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical finding for a large number of external PDF links. The ML classifier also assigned a high probability of maliciousness. The embedded URLs point to various domains, suggesting a link farm designed to distribute malicious content or redirect users to phishing sites. No scripts were extracted from this sample.

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://capitalball.com/uploads/1/3/0/5/130590403/gululobulavo_dokovamer_rinir.pdf
    • http://aliahjan.co.nz/uploads/1/3/0/5/130588778/c57ddd09f4ac0.pdf
    • http://diracommunity.com/uploads/1/3/0/6/130620278/pekigoxowojol.pdf
    • http://lclreporter.com/uploads/1/3/0/6/130621369/wufiwunujeno.pdf
    • http://atlantadrummethod.com/uploads/1/3/0/2/130271250/pajujoz-xuzodadefonuzi.pdf
    • http://booksasweapons.com/uploads/1/3/0/5/130551941/pifisoretixej.pdf
    • http://goodbyesonline.com/uploads/1/3/0/5/130541656/1376128.pdf
    • http://socialbutterflyslp.com/uploads/1/3/0/8/130815213/1591512.pdf
    • http://stayhererentals.com/uploads/1/3/0/5/130590457/3391059.pdf
    • http://raiseyouruxiq.com/uploads/1/3/0/6/130620265/gutosizebasep.pdf
    • http://chanabarriger.com/uploads/1/3/0/6/130621498/9022270.pdf
    • http://fueltherainbow.com/uploads/1/3/0/7/130739287/463941daa8e59.pdf
    • http://geriatricmodelingclub.com/uploads/1/3/0/4/130476351/2164144.pdf
    • http://anarogersfitness.com/uploads/1/3/0/5/130589396/2893674.pdf
    • http://andres-historical.com/uploads/1/3/0/6/130639476/zaretozajobajoloju.pdf
    • http://holdzup.com/uploads/1/3/0/7/130738576/munuwagel.pdf
    • http://carpetcleancary.com/uploads/1/3/0/8/130814229/130814229.html#the+halls+of+nero+assassin%27s+creed+brotherhood

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010ee.bin
0d5b4840f8a9d3643d160eead4cc17d9314cc0f0bc9d7a95fe1717e4c2501c57		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10EE 8048 bytes

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