Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5f0ed2a6a7661b8…

MALICIOUS

PDF

34.4 KB Authoring application: LibreOffice
MD5: dff5dca150d44ab32632726be601075b SHA-1: 129900c3b70a880ac00cf47408c085bb7b83688a SHA-256: e5f0ed2a6a7661b8905d6610bef936ce5fd7e123798432d8bd1307ede0ad0610
152 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious phishing content. The PDF_SEO_LINK_FARM heuristic indicates a large number of embedded external links, with the primary one being http://cashsolution4homes.com/uploads/1/3/0/5/130590399/lexojawawarapo-tejemokudifegog-jepipozezatujij-maputagozo.pdf. This suggests the document's purpose is to redirect users to potentially harmful websites, likely for credential harvesting or malware distribution.

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://cashsolution4homes.com/uploads/1/3/0/5/130590399/lexojawawarapo-tejemokudifegog-jepipozezatujij-maputagozo.pdf
    • http://nifefut.viewoptiononline.com/uploads/2020/01/28/fojewopar.pdf
    • http://accidentallyorganized.com/uploads/1/3/0/5/130588627/7526445.pdf
    • http://ciircle.ca/uploads/1/3/0/6/130621467/9682435.pdf
    • http://petcura.net/uploads/1/3/0/4/130488994/c1206d70177548d.pdf
    • https://tipileseludujap.weebly.com/uploads/1/3/0/4/130483478/mazibapajunapor-pizeketu.pdf
    • http://bejustalittlebetter.com/uploads/1/3/0/6/130621691/130621691.html#ovarian+cyst+management+guidelines+acog

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001342.bin
3979004bd1255611a7603bed1fdd8f6ac1c497de8ca2845248ef608cef20feef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1342 8816 bytes

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