Malicious PDF — malware analysis report

Static analysis result for SHA-256 b030add644afc121…

MALICIOUS

PDF

44.8 KB Authoring application: QPDF
MD5: 3dc2f363630767b8094e61ab5b97caa6 SHA-1: 192be67f08361e90e1899fbda55fe20f9b0eb5e8 SHA-256: b030add644afc1219d5f90bf2bfced288c239600591cf37b00090d885e6491d2
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links pointing to external PDF files hosted on various domains. This behavior is indicative of a link farm used to distribute malicious content or conduct phishing attacks. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection motive. No scripts were extracted from this sample.

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://brownsvillese92.com/uploads/1/3/0/5/130544243/806509e8bd6d.pdf
    • http://missionboostconsulting.com/uploads/1/3/0/5/130544191/0fc842085e326.pdf
    • http://scottrosenthalphoto.com/uploads/1/3/0/4/130488295/dubajup.pdf
    • http://meredithlubowphd.com/uploads/1/3/0/6/130621751/pelikebazudizunipep.pdf
    • http://trevoroc.com/uploads/1/3/0/7/130776891/130776891.html#remington+870+serial+number+receiver

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010b7.bin
5d900ccc1bc760b918b15726f9bf360d06338634cc9674516fbd060e7aaf9a1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10B7 9392 bytes
font_01_sfnt_off0000696c.bin
6db2f878e0fd57d3a351d0d81a5ccd7b58f68df6728dadc3aee3ebeb1a1d6e60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x696C 16068 bytes

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