Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e023b801fde0792…

MALICIOUS

PDF

34.1 KB Authoring application: LibreOffice Draw
MD5: 4b11af3c75f77dc7e80384144f5aedb5 SHA-1: c49ad0ef45235a35d151ed9a4d423ce17bc7d124 SHA-256: 5e023b801fde07927cc7243440c4617ee933ca6c20e4cb522f5224252cdf43af
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links, identified as a link farm, directing users to download other PDF files. The document body attempts to disguise itself as a banking form, likely to trick users into clicking these malicious links. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports its malicious nature as a phishing lure.

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://getguillotines.com/uploads/1/3/0/5/130540240/wavege_loganuv_wuzolinom_zepibudatasajif.pdf
    • http://queenofthewaves.net/uploads/1/3/0/5/130545885/855951d.pdf
    • http://midnightoilscompany.com/uploads/1/3/0/6/130604902/d6b3608.pdf
    • http://kramerlawfirm.net/uploads/1/3/0/4/130483397/tuwokovofovibi_tabubodowuj.pdf
    • http://hypo2testing.com/uploads/1/3/0/4/130436078/46f0b2d4e30c9.pdf
    • http://www.mwaadiasbl.com/uploads/1/3/0/5/130543155/mipijovep.pdf
    • http://bannerch.org.tw/uploads/1/3/0/7/130740612/boxepaviwufatiw-vikevibozaduju-pirolubebebixu-kilopelu.pdf
    • http://humanstellstories.com/uploads/1/3/0/8/130873982/lopozumuzuvemodaresi.pdf
    • http://www.lawler312.com/uploads/1/3/0/5/130590548/xejini.pdf
    • http://stuffhugomade.com/uploads/1/3/0/5/130550901/ruxij.pdf
    • http://terrorsofresistance.com/uploads/1/3/0/5/130550879/tinatobomo.pdf
    • http://funeventswithfriends.com/uploads/1/3/0/4/130476248/d64f1b0b7a94a.pdf
    • http://bigcreekgreenway.org/uploads/1/3/0/8/130874139/2682525.pdf
    • http://scrubs4work.com/uploads/1/3/0/3/130323822/130323822.html#sbi+saral+net+banking+form+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d62.bin
1cdd7ba2c67a6671e6508a7f753d7a878534f05e5c8e48be3737b86a6b800bff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D62 7496 bytes

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