Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc03e61a3699d192…

MALICIOUS

PDF

32.4 KB Authoring application: Serif PagePlus
MD5: 069b675a58f3f3935161b00bcd01ec12 SHA-1: a9e6d5bcc3b291e12dd623032bfb48b16a768616 SHA-256: dc03e61a3699d1929aa791d17101b9714e9d2f2dd15136d2d7c6e3c3504553b5
150 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, and it contains a large number of embedded URLs pointing to other PDF files. This behavior is consistent with a link farm used for SEO manipulation or to distribute further malicious content. The presence of numerous unknown URLs suggests a phishing or malware distribution campaign.

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://rssailing.org.au/uploads/1/3/0/5/130543598/raretipujunalorosip.pdf
    • http://restorativemovement.co.uk/uploads/1/3/0/3/130313070/0224caec193.pdf
    • https://baxesaxanog.weebly.com/uploads/1/3/0/5/130588220/sevepelugatunoj.pdf
    • http://kristylewis.fish/uploads/1/3/0/3/130323206/papisoto-xafamofu-xajiru.pdf
    • http://mksports.ie/uploads/1/3/0/3/130379251/visiropowuvafa-gejog-tadiguwowad-jireba.pdf
    • http://dewomax.championscrapcars.com/uploads/2020/01/28/2068396.pdf
    • http://myoutdoorvisions.com/uploads/1/3/0/6/130621798/97275cf9880f2.pdf
    • http://woodlandsgolf.weebly.com/uploads/1/3/0/4/130488251/mamovanek-repune-fukemarabimixa.pdf
    • http://wikademia.org/uploads/1/3/0/6/130604395/a54ee3db06af0e.pdf
    • http://pylesbodyshop.com/uploads/1/3/0/6/130605073/sovufigosapelo.pdf
    • http://mynaturalhairspa.com/uploads/1/3/0/2/130270833/130270833.html#calculate+cpk+in+excel

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012a9.bin
0fa55dfbd81abdee62677b2034b549134b6b191294fbea1a4250e755459fc59b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12A9 8012 bytes

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