Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5ebab0bc0498df8…

MALICIOUS

PDF

33.9 KB Authoring application: Soda PDF
MD5: a66279570446c208119b9fae27864e83 SHA-1: 5def48c2febd8a7fa86c66ca3c192e865f524e50 SHA-256: e5ebab0bc0498df8fdc76507299e417ef366843334917de6aec2895a57538bb9
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO spam or to distribute further malicious content. The heuristic 'PDF_SEO_LINK_FARM' and ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly indicate a malicious intent. The document body, though partially corrupted, contains text related to merging PDFs, suggesting a lure to disguise the malicious link distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://cneachome.com/uploads/1/3/0/2/130270864/nijosemujezu.pdf
    • http://neobedbugtaskforce.com/uploads/1/3/0/4/130483697/e6502f6.pdf
    • http://hardwaterco.com/uploads/1/3/0/3/130313111/kiwadafujolifek.pdf
    • http://beyondjordanarise.com/uploads/1/3/0/4/130489467/9087996.pdf
    • http://www.midthordlandhestesport.net/uploads/1/3/0/6/130605119/tiduvuzozow.pdf
    • http://oxnard-photography.com/uploads/1/3/0/4/130436494/d4975122e0.pdf
    • http://ary.life/uploads/1/3/0/5/130590180/nekup-kapebesojobur-mawevopebi-temifujawe.pdf
    • http://yardgamesets.com/uploads/1/3/0/5/130551726/baxibufejasovute.pdf
    • http://autodiscover.eastcoastguitarexpo.com/uploads/1/3/0/6/130620423/joxiwoponiwagiz.pdf
    • http://partywife.net/uploads/1/3/0/7/130775268/19156a414d5d1c.pdf
    • http://maephimbeaches.com/uploads/1/3/0/7/130739046/5836544.pdf
    • http://type1cyborg.jacquelineclewis.com/uploads/1/3/0/6/130604300/130604300.html#how+to+merge+two+pdfs+together+windows

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e28.bin
1fb37ff2f7ebcf47d04e0458a8f7af261fbc486ed723ce1c4f2cdb462a791809		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E28 7616 bytes

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