Malicious PDF — malware analysis report

Static analysis result for SHA-256 fba89ce566698cef…

MALICIOUS

PDF

32.6 KB Authoring application: Pdftk First seen: 2020-09-24
MD5: 53c830ab3ffa0589c035f2e5dc8d1ba8 SHA-1: 76219ea0a19f0978857816cb2b78f7f98cf9959d SHA-256: fba89ce566698cef7b3c5692f8f5d1b6405c6b1ef49e4b6c8ac9400214816256
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' further supports a malicious intent. The primary purpose appears to be directing users to a network of websites, likely for phishing or to distribute additional malware.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://radikosoft.com/uploads/1/3/0/7/130740175/809330.pdf In PDF document text
    • http://moviebuffet.net/uploads/1/3/0/4/130476976/6751116.pdfIn PDF document text
    • http://cityonloc.com/uploads/1/3/0/2/130289291/4878776.pdfIn PDF document text
    • http://ezyfix2u.com/uploads/1/3/0/6/130640048/siwafovozize_nekelamaposakab.pdfIn PDF document text
    • http://josephdanielglobal.net/uploads/1/3/0/6/130603761/jumigi.pdfIn PDF document text
    • http://minoritypodcast.com/uploads/1/3/0/8/130814017/xixoj.pdfIn PDF document text
    • http://lifeschooleugene.org/uploads/1/3/0/3/130312968/8d78b7ca5e2.pdfIn PDF document text
    • http://ccprofessionaltaxservices.net/uploads/1/3/0/4/130478205/1761371.pdfIn PDF document text
    • http://annamyers.info/uploads/1/3/0/5/130588701/gigutoto-petuzo.pdfIn PDF document text
    • http://shopprayhustleslay.com/uploads/1/3/0/3/130323154/3818491.pdfIn PDF document text
    • http://bsawhistle.com/uploads/1/3/0/2/130272270/e08a51ce4.pdfIn PDF document text
    • http://negativetopositivefilms.com/uploads/1/3/0/5/130589083/4725815.pdfIn PDF document text
    • http://a-watkinanson.mamahope.org/uploads/1/3/0/7/130776749/c68992.pdfIn PDF document text
    • http://mychinesewatch.com/uploads/1/3/0/5/130589396/130589396.html#passive+voice+tenses+in+urduIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002737.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2737 7640 bytes
SHA-256: 8b21d5ddeac9a79fff6a72532e1fc5cf49846f5bb2153ef9a349f463b19eeba7