Malicious PDF — malware analysis report

Static analysis result for SHA-256 f782bac9d6b96e6a…

MALICIOUS

PDF

31.0 KB Authoring application: Serif PagePlus
MD5: 95ee93b5c4f86422ea14616078c88291 SHA-1: 140744d53f4df2a4424e6eb1a3081b630db72951 SHA-256: f782bac9d6b96e6a93df41d502c15eb7f715c18148e31e622db0f3a38987fa40
120 Risk Score

Malware Insights

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

The PDF file was detected by ClamAV as Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a large number of embedded URLs, forming a link farm. The heuristic PDF_SEO_LINK_FARM specifically flags this behavior, indicating the document's primary purpose is to redirect users to a multitude of external PDF files, likely for phishing or malware distribution.

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://centralbrowardtransitstudymeeting.com/uploads/1/3/0/7/130740378/vixilunuwu.pdf
    • http://worldofmediaqueen.com/uploads/1/3/0/7/130738503/beb161.pdf
    • http://blacklistacademy.com/uploads/1/3/0/7/130776457/bunisotu.pdf
    • http://rykihapkidoaustralianfederation.com/uploads/1/3/0/7/130776182/3f1f97a.pdf
    • http://fleabayers.com/uploads/1/3/0/3/130313634/3241721.pdf
    • http://wmscomputing.com/uploads/1/3/0/4/130478819/riruzuper.pdf
    • http://replicationsystems.com/uploads/1/3/0/8/130813398/8248997.pdf
    • http://thoughtgumbo.info/uploads/1/3/0/6/130604048/lezugapewu.pdf
    • http://dancefitdanceacademy.com.au/uploads/1/3/0/6/130640114/6164011.pdf
    • http://www.simplysoccerpro.com/uploads/1/3/0/5/130539049/32833c.pdf
    • http://www.akanartist.com/uploads/1/3/0/2/130287896/kefimawar.pdf
    • http://transcreationlab.com/uploads/1/3/0/7/130740537/9471847.pdf
    • http://richtiginc.com/uploads/1/3/0/4/130489367/vekilad.pdf
    • http://w83.brdge.org/uploads/1/3/0/3/130323449/130323449.html#english+conversation+practise+apk

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001f2d.bin
f5a96012d535a363bbf817befd074afc4fd35891eebb5cd20172988277a3f0a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1F2D 8176 bytes

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