Malicious PDF — malware analysis report

Static analysis result for SHA-256 77cb85d793884e96…

MALICIOUS

PDF

54.3 KB Authoring application: Serif PagePlus
MD5: ea86b786875f50babec7f87524364124 SHA-1: b8c51bc547c299a14cff21ed634fc9e7986d4efe SHA-256: 77cb85d793884e9670e05f672fa61d6b66221f9946b87fdc115d3b8b26a0fa96
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links to external PDF files, disguised as a template for Excel calendars. This technique is commonly used to distribute malware or redirect users to phishing sites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution.

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://sonoranlashes.com/uploads/1/3/0/7/130740438/b586a.pdf
    • http://americanlighting.org/uploads/1/3/0/6/130605351/susodanefibukirexe.pdf
    • http://gol.udacha-samara.ru/uploads/2020/01/28/telabomu.pdf
    • http://democraticabsentee.com/uploads/1/3/0/4/130477170/3837366.pdf
    • http://stjeromewestchester.org/uploads/1/3/0/2/130289652/7684357.pdf
    • http://stain-goed.nl/uploads/1/3/0/4/130476974/f6827225.pdf
    • http://staceyclarkdllportfolio.com/uploads/1/3/0/3/130313495/007379a.pdf
    • http://refugechurchva.org/uploads/1/3/0/5/130551013/lotanufil.pdf
    • http://myruffledskirts.com/uploads/1/3/0/5/130540128/jopox.pdf
    • http://circoestodo.com/uploads/1/3/0/7/130775441/kujizuxulav-pixavapomavag-nimutapuriwubu.pdf
    • http://northerndriveschool.com/uploads/1/3/0/5/130547486/nozixolo-rekipiloxalesi-vezipa.pdf
    • http://skybluecounseling.com/uploads/1/3/0/7/130776151/eff11fb939.pdf
    • http://nicolitulk.com.au/uploads/1/3/0/6/130604566/130604566.html#template+kalender+2019+excel

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013cd.bin
590a31dedc3cd111ebe6a248ae3b7d38dff6d9bb1db03c750e467425af52d158		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13CD 8556 bytes

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