Malicious PDF — malware analysis report

Static analysis result for SHA-256 53339c3e2e6d1673…

MALICIOUS

PDF

34.6 KB Authoring application: Pdftk
MD5: 2d2420691ee68fc25d9083dfc7858ede SHA-1: b88fb232f5b8d8d4d9a31eb6c184eb198fdf8260 SHA-256: 53339c3e2e6d16737a1bb5de9d9cee999137f6a28ea6ed17898666488dbc45af
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external websites, a technique commonly used for SEO poisoning and phishing. The ClamAV detection and ML classifier strongly indicate malicious intent. The embedded URLs are likely part of a link farm designed to redirect users to malicious content.

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://tier1sexoffenders.com/uploads/1/3/0/4/130476079/37f52ac84fb.pdf
    • http://catagorica.com/uploads/1/3/0/6/130620429/pezaro.pdf
    • http://alexisborth.com/uploads/1/3/0/6/130639709/62168.pdf
    • http://midwesternchristianacademy.org/uploads/1/3/0/5/130544001/tatisalago.pdf
    • http://californiaconnecting.org/uploads/1/3/0/3/130313117/7312241.pdf
    • http://www.emilyrosenaturephoto.org/uploads/1/3/0/7/130775386/049c20.pdf
    • http://roguestarmedia.com/uploads/1/3/0/6/130603773/faxuxin-gopivojanusora.pdf
    • http://www.traderslippers.com/uploads/1/3/0/2/130291475/e3302f3bbf.pdf
    • http://escape-island.net/uploads/1/3/0/2/130272569/jegijil_fovefa_laduja.pdf
    • http://derrettphoto.com/uploads/1/3/0/2/130274368/5049474.pdf
    • http://sryoga.co.uk/uploads/1/3/0/6/130639121/161f0db.pdf
    • http://ctwelve.net/uploads/1/3/0/8/130874297/984f98.pdf
    • http://virtualvintner.biz/uploads/1/3/0/8/130873848/8ca4946a.pdf
    • http://aymd.net/uploads/1/3/0/6/130621484/03fe43a5845.pdf
    • http://adsl-65-43-110-214.carmichaelnl.com/uploads/1/3/0/7/130738513/130738513.html#diferencias+absorcion+y+adsorcion

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ecb.bin
9d1e45941cf99b81a651fb3597e2f578e89d0bc80b4d6ec6e09b560db0d0b705		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ECB 8104 bytes

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