Malicious PDF — malware analysis report

Static analysis result for SHA-256 016fa81d91613d0b…

MALICIOUS

PDF

55.8 KB Authoring application: Mobipocket Creator
MD5: 09be6dbe5dfcf9b0167a34ced50f9b18 SHA-1: 74496fa757f48d39af5ac4b13642e02253d96ffe SHA-256: 016fa81d91613d0b465ea8a614eb7cd4e9cfe7b9c6a1e4dabef1d5a1b294a24d
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.002 Malicious File: User Execution: Malicious File

The PDF contains a large number of embedded external links, a technique often used for SEO poisoning or distributing further malicious content. ClamAV identified this as Pdf.Phishing.TtraffRobotInstall, indicating a phishing or traffic redirection scheme. The ML classifier also strongly flagged this as malicious.

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://reneedumarr.com/uploads/1/3/0/6/130639030/bonapuzemifid-lujugab-jopinebate.pdf
    • http://rudeburns.com/uploads/1/3/0/6/130621244/5604007.pdf
    • http://rechargedxb.com/uploads/1/3/0/2/130272095/07f4db50.pdf
    • http://thedecluttered.life/uploads/1/3/0/5/130588581/1b16f83ea62b7.pdf
    • http://mexicolegalhelp.com/uploads/1/3/0/6/130622012/3824474.pdf
    • http://valleyofthedunes.com/uploads/1/3/0/3/130312937/jatopanebakafatu.pdf
    • http://suxepo.canvasland.ru/uploads/2020/01/28/079e3b120f4c76d.pdf
    • http://lutherjames.net/uploads/1/3/0/5/130589090/9593924.pdf
    • http://mamajourneys.com/uploads/1/3/0/6/130621310/bovixaze.pdf
    • http://deadguycottoncandy.com/uploads/1/3/0/6/130604336/446774.pdf
    • http://naturalroofingslates.net/uploads/1/3/0/4/130483508/2f064cf620debdb.pdf
    • http://clucktruckportland.com/uploads/1/3/0/8/130873786/130873786.html#neutron+absorption+cross+section+nist

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001271.bin
4dab0001ffa5f82548fad5958714d518a3b4f57759de54b37ddb03b4711edff9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1271 7696 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.