Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2150704df93bfeb…

MALICIOUS

PDF

39.4 KB Authoring application: Mobipocket Creator
MD5: f9364e1f13342537239e2db3016db4f3 SHA-1: 9f146ce19358ca83adad9c962f2a6f67976c15a2 SHA-256: c2150704df93bfeb2d5e0d7ac1798c4af453f0f61ccb37ba9bc32ba4fcd10329
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, forming a link farm. This is indicative of a phishing or malicious content distribution scheme, where users are directed to external sites. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware delivery. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

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://dynamicsymmetryart.com/uploads/1/3/0/5/130539229/maxib.pdf
    • http://streetwerkzcustoms.com/uploads/1/3/0/4/130435635/tunuwolijinox_kirukozegiwimo.pdf
    • http://nmcawomenscricket.com/uploads/1/3/0/5/130551219/sapolanubopofaf.pdf
    • http://pivovuvep.kidlikes-cinema.ru/uploads/2020/01/28/8ca572fe0849d.pdf
    • http://southtynesideagainstbullying.co.uk/uploads/1/3/0/6/130604863/bofupejos.pdf
    • http://mikewilliamsmusicclasses.com/uploads/1/3/0/5/130543280/jikeji-ramilila.pdf
    • http://neobyapps.com/uploads/1/3/0/4/130476168/tozefovujixagel.pdf
    • http://mpatoska.com/uploads/1/3/0/4/130476208/319e0.pdf
    • http://mydanielswaterfrontcondo.com/uploads/1/3/0/6/130603710/6a6d3.pdf
    • http://ularooms.com/uploads/1/3/0/4/130476207/03713e8582fefcb.pdf
    • http://tovarik1.fun/uploads/2020/01/27/7266822.pdf
    • http://hollyknoxrhame.com/uploads/1/3/0/6/130604083/telajalu_vevezemorawolu_lomil.pdf
    • http://bejustalittlebetter.com/uploads/1/3/0/4/130489222/130489222.html#vehicle+dynamics+control+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001333.bin
32605ebbbc6448aa0b40ce03f14286d5218489f295f5610b399fc708b4609a2d
pdf-font-stream PDF embedded font (sfnt) at offset 0x1333 8136 bytes