Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7cf1d716b071317…

MALICIOUS

PDF

47.2 KB Authoring application: PDFBox
MD5: 8d22441e5072e62103a82051ee1508ae SHA-1: 476c17ad95a99c0d47e9890856107b0b1e7999b4 SHA-256: f7cf1d716b071317a2ce1fdf6622e1449701a19bb65999627a3d0e0084e2cf14
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection of Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious classification. The document body, though partially corrupted, mentions 'Sample email cover letter examples for resume', suggesting a lure to disguise the malicious link distribution. The primary attack pattern involves directing users to a network of external PDF files hosted on various domains.

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://peter-sand.net/uploads/1/3/0/7/130740008/jijifikibekefafenap.pdf
    • http://babygrunts.net/uploads/1/3/0/5/130551856/podigeserijujez.pdf
    • http://wordpressbox.org/uploads/2020/01/27/db8ed50e3aa5299.pdf
    • http://norcalpomskies.com/uploads/1/3/0/6/130621663/758784.pdf
    • http://skittishboy.com/uploads/1/3/0/6/130621098/a25488999f5c.pdf
    • http://vacavillelimos.com/uploads/1/3/0/3/130312914/938960.pdf
    • http://nicholemannion.com/uploads/1/3/0/6/130605016/riwuvupixi.pdf
    • http://nanascountryporch.com/uploads/1/3/0/5/130540507/pomunoxamutegi.pdf
    • http://jackyhasasite.club/uploads/1/3/0/3/130379386/jojeligo.pdf
    • http://aquafloradesign.com/uploads/1/3/0/5/130543107/130543107.html#sample+email+cover+letter+examples+for+resume

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001253.bin
5da298d80ac36cc87ee8bdff19111e8c9e0bedcd92a38dbe75222ddad20533c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1253 9112 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.