Malicious PDF — malware analysis report

Static analysis result for SHA-256 75bba1d9f56ae4c3…

MALICIOUS

PDF

49.0 KB Authoring application: PDFedit
MD5: 0c05d1c6698f76f6e87d1a95a8d20886 SHA-1: 727a78f7df934691b8a1b7d4c6cc32d7e0ca487c SHA-256: 75bba1d9f56ae4c32d4f93112b8b7fd7ed8caef57840e466945c6f38fccb05af
170 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics as malicious, including a critical detection for 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and a PDF image lure. The document contains a mass external PDF link farm, with numerous URLs pointing to external PDF files. The primary attack pattern appears to be a phishing lure, leveraging a screenshot disguised as a document to entice users to click on embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 49 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://www.dieselsdaughter.com/uploads/1/3/0/6/130620801/5954942.pdf
    • http://readytomexico.com/uploads/1/3/0/8/130814921/rajoma.pdf
    • http://www.shelbycolgan.com/uploads/1/3/0/6/130604181/6756875.pdf
    • http://coastalaquaticsva.com/uploads/1/3/0/7/130740221/nisavoxeb_fudolinudetu.pdf
    • http://toursofcalifornia.com/uploads/1/3/0/5/130551795/rozoju-luvotubijubavo-fuvezufoweroker.pdf
    • http://tlcredstandardpoodles.com/uploads/1/3/0/6/130604150/6179412.pdf
    • http://huanqiuquanxunwang.f18.ebkf.org/uploads/1/3/0/5/130588289/pedorux.pdf
    • http://www.flutehats.com/uploads/1/3/0/5/130588487/niwujitafupomavo.pdf
    • http://www.barrelman.org/uploads/1/3/0/8/130814601/mufanatujekidox-kijufamidupo.pdf
    • http://actsimplified.com/uploads/1/3/0/2/130288426/6168515.pdf
    • http://www.savagelaughter.com/uploads/1/3/0/6/130621997/kebexatumazawefaduru.pdf
    • http://amberindiacatering.com/uploads/1/3/0/3/130324234/8472133.pdf
    • http://acceligen.org/uploads/1/3/0/2/130270914/nuziwabadow.pdf
    • http://s9kfv.slpny.com/uploads/1/3/0/4/130476273/130476273.html#agilent+34401a+manual+espa%C3%B1ol

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006fa3.bin
62c1e498ea36c9c6130528543a550a67be93675697028dc5de01242b2b110b45		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA3 5276 bytes

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