Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1a2c9ee2e9823f6…

MALICIOUS

PDF

35.0 KB Authoring application: Nitro PDF
MD5: 84708bde0bdbade4aa6d20800ac61eaf SHA-1: 59abea55ce02b336167b0e955fe9ffa1655be82e SHA-256: a1a2c9ee2e9823f666872fba1bac5ba3f41d2613d3c6b4b6907168afc83a6133
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious by ClamAV with the signature Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a significant number of embedded external links, characteristic of a link farm designed to distribute malicious content. The document body contains corrupted text, but the presence of numerous URLs points towards a phishing or malware distribution attempt.

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://paverconcretesealing.com/uploads/1/3/0/2/130273610/lojovozavupibupiris.pdf
    • http://psykron.club/uploads/1/3/0/3/130313144/soroxil.pdf
    • http://triciajoyart.com/uploads/1/3/0/3/130323216/wenowikazexar-nadet-zalakunepoko.pdf
    • http://zipganizer.org/uploads/1/3/0/5/130551137/bbced0235.pdf
    • http://musictheatercareers.com/uploads/1/3/0/4/130490719/deguwig.pdf
    • http://richardbrooksinvestigations.com/uploads/1/3/0/6/130620902/kejet.pdf
    • http://bellovaporizer.com/uploads/1/3/0/6/130621292/tutivitoxi.pdf
    • http://automateforgood.com/uploads/1/3/0/3/130323984/xudogumigejalu.pdf
    • http://netmotiondemo.com/uploads/1/3/0/3/130379178/vetaditunudujowonudu.pdf
    • http://karenalearns.com/uploads/1/3/0/8/130873838/ruvulosi.pdf
    • http://wendoverconsultants.com/uploads/1/3/0/2/130273804/a36dbe1.pdf
    • http://mindandbodydallas.com/uploads/1/3/0/7/130739944/suwamotafuv.pdf
    • http://www.prettyjboutique.com/uploads/1/3/0/6/130620687/favegi.pdf
    • http://danielmontiel.com/uploads/1/3/0/4/130483413/058f7fe02539c.pdf
    • http://mastergamecraft.com/uploads/1/3/0/4/130476887/tebipililexu.pdf
    • http://ladykays.com/uploads/1/3/0/3/130323597/momujofukiwuxol.pdf
    • http://moss-wedding.rominastiebenphotography.com/uploads/1/3/0/7/130775375/130775375.html#cursive+alphabet+printable+practice

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002c4f.bin
6b2e1b066715d9b458703f5de8029ec2e26245859fcc405760743cdecdc275fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4F 8184 bytes

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