Malicious PDF — malware analysis report

Static analysis result for SHA-256 3293c7ffe2f1739c…

MALICIOUS

PDF

41.2 KB Authoring application: LibreOffice Draw
MD5: 3de823762fb73dcf4ce377285e3bfa03 SHA-1: bef58c97af9603ccfbe4c3d84c28793427773c37 SHA-256: 3293c7ffe2f1739c62fc3a00838fec5c60634ee59b92e676eee177c5db527549
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 links to external PDF files hosted on various domains. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious payloads. The ClamAV detection further supports its malicious nature, classifying it as Pdf.Phishing.TtraffRobotInstall. No scripts were extracted from this sample, and the document body contained mostly garbled text, making it difficult to ascertain a specific user-facing lure.

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://www.mynarrativeofmusic.com/uploads/1/3/0/5/130538816/6a9144a9647a.pdf
    • http://sigmapivu.com/uploads/1/3/0/6/130605476/savatupix-vikamij-likusa-xukenazoxef.pdf
    • http://www.candsprofessionalservices.com/uploads/1/3/0/3/130323659/sonopakuku_lomugamatiluzar_zosovize_duwowugovo.pdf
    • http://janddcellular43055.com/uploads/1/3/0/4/130478307/3839479.pdf
    • http://newmexiconeuromuscular.com/uploads/1/3/0/2/130270874/326511.pdf
    • http://carpetcleanerwaukesha.com/uploads/1/3/0/4/130483542/6504260.pdf
    • http://digitalproductsdatabase.com/uploads/1/3/0/7/130775320/5905780.pdf
    • http://bailey.queenanneelementary.com/uploads/1/3/0/6/130603968/xofelujexez-lipego-zezon-debozo.pdf
    • http://shardworld.com/uploads/1/3/0/6/130605405/551441.pdf
    • http://nyingma-summer-seminar.com/uploads/1/3/0/6/130621622/9709349.pdf
    • http://mimillari.com/uploads/1/3/0/7/130740200/3b635.pdf
    • http://secure-pof.com/uploads/1/3/0/7/130776514/130776514.html#html+font+color+using+hex

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030d2.bin
57b11507310a54ac1804785031a6c50e3b77163964f97d9b63d647909f1b8434		 pdf-font-stream PDF embedded font (sfnt) at offset 0x30D2 16088 bytes
font_01_sfnt_off00004899.bin
1a0d685fe577f4ca2f04e4c08a9aee01c7200967bcd39a4af1ddc8a9d9f884e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4899 8432 bytes

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