Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a56a42b3f86d84a…

MALICIOUS

PDF

41.1 KB Authoring application: LibreOffice First seen: 2020-09-24
MD5: 6157388fb21be699532188b3d9c211ef SHA-1: fbd8d49e873b9e736ec00e5b76c92acd8f02e270 SHA-256: 7a56a42b3f86d84a517b011c44d9fdee1cfbac86b7684bee8a1098e887f8f992
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, aligning with the PDF_SEO_LINK_FARM heuristic. No scripts were extracted from this sample, and the document body was heavily truncated and unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://insideou.net/uploads/1/3/0/6/130621024/dowikat_mazavofumag_basewatagamikav_fafivasojelud.pdf In PDF document text
    • http://bdaddysgrill.net/uploads/1/3/0/3/130323762/491d65af7b0451f.pdfIn PDF document text
    • http://quillylife.com/uploads/1/3/0/3/130379798/3837075.pdfIn PDF document text
    • http://findthatpartyplanau.net/uploads/1/3/0/5/130542859/vavanojerewexuxoju.pdfIn PDF document text
    • http://douxoverdesign.com/uploads/1/3/0/5/130541662/2760889.pdfIn PDF document text
    • http://renotiles.com/uploads/1/3/0/6/130621484/e303f9db0af.pdfIn PDF document text
    • http://ironspiritkarate.org/uploads/1/3/0/5/130589452/fubufusirufuxefonino.pdfIn PDF document text
    • http://texturadesign.net/uploads/1/3/0/3/130313021/jegilura.pdfIn PDF document text
    • http://www.smiledefenders.net/uploads/1/3/0/2/130272387/1429851.pdfIn PDF document text
    • http://surlepouceonline.com/uploads/1/3/0/6/130621732/2aeb84.pdfIn PDF document text
    • http://newportsummerrentals.com/uploads/1/3/0/6/130620690/3719870.pdfIn PDF document text
    • http://dealershowing.com/uploads/1/3/0/5/130590443/gegodubidove.pdfIn PDF document text
    • http://natashastraley.com/uploads/1/3/0/6/130604585/mitukojaselutokaj.pdfIn PDF document text
    • http://theladdsgroup.com/uploads/1/3/0/5/130551765/2470625.pdfIn PDF document text
    • http://prouni2025.net/uploads/1/3/0/3/130313123/68458061d0c.pdfIn PDF document text
    • http://alwaysfuntravel.voyagerwebsites.com/uploads/1/3/0/5/130588618/130588618.html#how+to+wash+brows+after+microbladingIn PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000462a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x462A 8064 bytes
SHA-256: 3ac065f36fd1c1fccdd26803536b0ed8d13cc4cc27f15644f0da4c33c53a8bf8

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