Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd24c7fff0ec99b1…

MALICIOUS

PDF

33.8 KB Authoring application: SWFTools
MD5: da924ac1bfa877a98651703eb38720aa SHA-1: 2c2c9a20492db227c181af91abb2d6330b1a3b6c SHA-256: fd24c7fff0ec99b17dd468ff38220237cf43f9e849eb12d8326b8a5be3dbe9b6
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links pointing to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution network designed to redirect users to potentially malicious content. The ML classifier and ClamAV detection strongly support the malicious nature of this file, likely serving as a lure for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://wichitataste.net/uploads/1/3/0/4/130476720/makudoberorexuwa.pdf
    • http://dolack.org/uploads/1/3/0/6/130639689/4293cff36fa.pdf
    • http://ninebotours.com/uploads/1/3/0/6/130621020/5473075.pdf
    • http://www.rojosblc.org/uploads/1/3/0/7/130776850/1420269.pdf
    • http://crybaby.club/uploads/1/3/0/6/130639468/6755a086b.pdf
    • http://dinosgrilledburger.com/uploads/1/3/0/6/130621775/lasodom.pdf
    • http://msbrownsclassroom.com/uploads/1/3/0/4/130435509/1286219.pdf
    • http://choptallybarber.shop/uploads/1/3/0/3/130379307/7738ad96cad42.pdf
    • http://www.drredford.com/uploads/1/3/0/4/130476766/7481217.pdf
    • http://neutralskincare.com/uploads/1/3/0/3/130323381/c1e693aeb.pdf
    • http://noyourockon.com/uploads/1/3/0/5/130551325/130551325.html#pdf+resize+less+than+100kb+free

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002de9.bin
f3cb630a0bdbfb49707e23305023a73d8c4235c19cb5f6481411822e17776174		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2DE9 8032 bytes

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