Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad383e89d60766d6…

MALICIOUS

PDF

36.9 KB Authoring application: Serif PagePlus
MD5: b35c1f7ec42446a266cef8d3e74338de SHA-1: 5bdb3b1aeaeb38b47b469566dcdfe28324338ddc SHA-256: ad383e89d60766d651ba513cd0ef039f016d1424d170881071e2055b182a397a
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external websites, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier and ClamAV also flagged this file as malicious, with ClamAV identifying it as Pdf.Phishing.TtraffRobotInstall-7605656-0. The embedded URLs suggest a link farm or redirection scheme, likely intended to lead users to malicious content or phishing sites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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://shopcharlienewyork.com/uploads/1/3/0/7/130739930/2743454.pdf
    • http://www.juliesjewelryboutique.com/uploads/1/3/0/4/130489434/wilog.pdf
    • http://nationofsteel.org/uploads/1/3/0/5/130540874/sepakejuvo.pdf
    • http://sportsphysiolab.com/uploads/1/3/0/8/130873796/zonemudijode-buzikateso.pdf
    • http://www.ardyainderawan.com/uploads/1/3/0/8/130874314/belazugut_barap.pdf
    • http://www.wesquare.com/uploads/1/3/0/4/130435850/vutebuxo_zugonetareme_rezugegiviw_putivufix.pdf
    • http://harrybick.com/uploads/1/3/0/6/130621125/tofufev.pdf
    • http://mrbrownmoderngent.com/uploads/1/3/0/6/130604636/zuwuloduz.pdf
    • http://nativelabjp.com/uploads/1/3/0/6/130620472/nozafaxibi.pdf
    • http://uvcheer.com/uploads/1/3/0/8/130814591/3025774.pdf
    • http://www.jnewirecreations.com/uploads/1/3/0/2/130287919/1038820.pdf
    • http://oaklandslodgebandb.co.uk/uploads/1/3/0/5/130590177/vewiwu.pdf
    • http://www.renaissanceresearch.org/uploads/1/3/0/4/130435780/130435780.html#reading+comprehension+with+multiple+choice+questions
    • http://oaklandslodgebandb.co.uk/uploads/1/3/0/5/130590177/vew

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003aef.bin
eab519d43d40153607afe1fb5924ed1ef9d0d70e93d21eb9eba176dcecb64c4b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3AEF 7328 bytes

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