Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8f0ded848ff0073…

MALICIOUS

PDF

41.0 KB Authoring application: Karbon
MD5: 4f81bbe984f2e1049df47a865c8e67d1 SHA-1: c7cad79741b031ba6fc7139acdee01db056b4856 SHA-256: c8f0ded848ff0073f772346e40b2a0489111fdbc4921b62828bb204ca91faa48
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 URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. The document body itself contains fragmented text related to a game, but the primary malicious activity appears to be the distribution of external links.

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://dirtroaddanes.com/uploads/1/3/0/5/130590653/9308340.pdf
    • http://reputationthompson.com/uploads/1/3/0/3/130313150/sebepusufatakud_zexonilogujetof_jifiladi_takuvo.pdf
    • http://mayahabian.com/uploads/1/3/0/6/130604986/vilefevojapuvo_kekefifeniku_manemir.pdf
    • http://moonsoundelectronics.com/uploads/1/3/0/6/130604568/kodeloxiwazo.pdf
    • http://motion-sickness.com.au/uploads/1/3/0/3/130324386/nabawopopap.pdf
    • http://petoskeycenter.com/uploads/1/3/0/6/130620635/2145b657eddfdae.pdf
    • http://pinheadsquilting.info/uploads/1/3/0/5/130540725/xopuxomipi-wabojupa-fojono-toxobax.pdf
    • http://shrinkingvioletjewellery.com/uploads/1/3/0/6/130639236/ece57e7f88a2834.pdf
    • https://warajozawuv.weebly.com/uploads/1/3/0/4/130478314/8604795.pdf
    • http://reelectjudgetabbey.com/uploads/1/3/0/3/130379151/kijovoxumegelidot.pdf
    • http://studysmartedu.com/uploads/1/3/0/6/130621317/130621317.html#fallen+enchantress+legendary+heroes+achievement+guide

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001345.bin
db5d97a7d2a08a20a5611ef46aa191bdd9c294d6c9f82cc9b3a31a28cf15d580		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1345 8944 bytes

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