Malicious PDF — malware analysis report

Static analysis result for SHA-256 b98cc137fdc94154…

MALICIOUS

PDF

33.0 KB Authoring application: Soda PDF
MD5: bae1cd5c258eb286cd0a05194c901cf1 SHA-1: bdd080cb25ea3c2a6c26ea2714c865aa4aaa2189 SHA-256: b98cc137fdc9415477eab11f031ceb65d820a2214d7427e6e8bb9d814e26958c
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links pointing to external PDF files, primarily hosted on discountcannadelivery.com. This behavior is indicative of a link farm used to distribute malicious content or conduct phishing. The ClamAV detection and ML classifier further support its malicious nature. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://discountcannadelivery.com/uploads/1/3/0/6/130605452/ac29c7f183739.pdf
    • http://completeremodellingsvs.com/uploads/1/3/0/7/130775880/384258.pdf
    • http://aikentaxitransport.com/uploads/1/3/0/6/130640048/1575777.pdf
    • http://tideviewcider.ca/uploads/1/3/0/6/130621464/pafomuvanu_xipof.pdf
    • http://theeightoneseven.com/uploads/1/3/0/6/130639765/b0ae2fed8.pdf
    • http://mhdbc.org/uploads/1/3/0/2/130271128/8918017.pdf
    • http://brautbecher-hochzeitsbecher-geschenke.de/uploads/1/3/0/7/130776233/2858638.pdf
    • http://afterall-this.com/uploads/1/3/0/6/130639571/xovexujelonasen_wenulosono_turome_sawevabijiwefi.pdf
    • http://oaklandempowermentscholarshipprogram.com/uploads/1/3/0/5/130551089/jumarokowugomu_pokupolodok_jatitatufimu_tazupifisupa.pdf
    • http://mvspropertymanagement.com/uploads/1/3/0/7/130739544/0d007a721f63.pdf
    • http://waterfronthotel.devsite-1.com/uploads/1/3/0/5/130590413/130590413.html#delonghi+nescafe+dolce+gusto+automatic

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000026c4.bin
bc0f8faca7ad935810e4bbaf7be7d53cecea22ddafb203e8a0bdbec83d290007		 pdf-font-stream PDF embedded font (sfnt) at offset 0x26C4 9600 bytes

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