Malicious PDF — malware analysis report

Static analysis result for SHA-256 0177f952820347d7…

MALICIOUS

PDF

42.6 KB Authoring application: LibreOffice First seen: 2020-09-07
MD5: a27f05b3432ef4396048337c784480a0 SHA-1: 5c70be072231c040b7448fff0a91d9a78cb00e3d SHA-256: 0177f952820347d7b67f5eb4a8058d3c7bb22f1ee32ce129c58f52d97cfe0b63
152 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, for malicious content. It contains a large number of embedded URLs pointing to external PDF files, indicating a link farm likely used for SEO poisoning or distributing further malicious content. The document body contains unrelated text and what appears to be malformed data, suggesting it is not intended for human consumption.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://milescan.com/uploads/1/3/0/5/130551505/voxinevotaxavopideg.pdf In PDF document text
    • http://morrisseauartist.com/uploads/1/3/0/4/130488850/neluxaven.pdfIn PDF document text
    • http://thesoftearth.com/uploads/1/3/0/6/130604327/344303.pdfIn PDF document text
    • http://chloedaniellewhite.com/uploads/1/3/0/5/130588550/2406904.pdfIn PDF document text
    • http://dianasalinas.net/uploads/1/3/0/4/130488616/lafivonigi_gosus_zivinege_zevadu.pdfIn PDF document text
    • http://mister5foot18.com/uploads/1/3/0/6/130604780/gamerevomemefazija.pdfIn PDF document text
    • http://mjrlashes.com/uploads/1/3/0/2/130289663/sumijusesetener-pakapevo-tapimozo-wokumibubajepu.pdfIn PDF document text
    • http://tomwenfashiondesign.com/uploads/1/3/0/5/130543239/nawete.pdfIn PDF document text
    • http://mon.peacesupportfund.org/uploads/1/3/0/3/130313031/380575.pdfIn PDF document text
    • http://wowbrows.net/uploads/1/3/0/5/130551164/rilifekejajoxuberu.pdfIn PDF document text
    • http://tea-and-qi.com/uploads/1/3/0/3/130313484/13e01d04eae.pdfIn PDF document text
    • http://vub.cafemostik.com/uploads/2020/01/28/ruxotimadetotip.pdfIn PDF document text
    • http://thesingbabysingshow.com/uploads/1/3/0/5/130588501/130588501.html#directv+genie+hr54-700+specsIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001358.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1358 8960 bytes
SHA-256: 833a8c403e7cf5207c38d454f2bb37a6a19c60720ccf7d1f5294fdd94e2b24ef