Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d9a791d1c8cd4ac…

MALICIOUS

PDF

59.1 KB Authoring application: LibreOffice Draw
MD5: 70fd8a470a413ef909705bf7c4a8d301 SHA-1: 42e67a446b9ba2eedcbc8a02b690208a07ae6cdf SHA-256: 6d9a791d1c8cd4ac186964e197f696d0ef66d91516041329e7994d48b74ad7c1
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier and ClamAV also flagged this file as malicious, with ClamAV specifically identifying it as Pdf.Phishing.TtraffRobotInstall. The embedded links likely serve to distribute malicious content or manipulate search engine results, aligning with a phishing or SEO spam attack pattern. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://ahrensforcountyboard.com/uploads/1/3/0/6/130640199/ribowe.pdf
    • http://laurelmedpa.com/uploads/1/3/0/7/130776715/vosadosejipuxot.pdf
    • http://ilonggo.net/uploads/1/3/0/5/130588315/xaxaremuref.pdf
    • http://twelvepowersforrecovery.org/uploads/1/3/0/6/130622110/1080565.pdf
    • http://heatherscustomcookies.com/uploads/1/3/0/3/130323174/9272489.pdf
    • http://nuezdejabon.site/uploads/1/3/0/4/130488539/dugivemijobowa.pdf
    • http://deeromanek.solutions/uploads/1/3/0/8/130874153/5a9cb7d.pdf
    • http://sidelkibezposrednikov.ru/uploads/1/3/0/5/130588789/xigolemunem_tirudu_nemomanenu.pdf
    • http://nextpathfinance.org/uploads/1/3/0/6/130639827/2b04c6d6046.pdf
    • http://www.bbqtothemax.com/uploads/1/3/0/2/130288397/8405318.pdf
    • http://26thplaceflats.com/uploads/1/3/0/4/130483400/tugosoxupi_joferuxej_kodibitod.pdf
    • http://www.reimageprinting.com/uploads/1/3/0/7/130775907/xadikokedozikituxani.pdf
    • http://positiveenergyflow.com/uploads/1/3/0/6/130620486/lagazu_poxosenag_dabepokik.pdf
    • http://sessionninephotography.com/uploads/1/3/0/4/130488199/memivevajo-zotosude.pdf
    • http://www.briskenterprises-store.online/uploads/1/3/0/6/130639477/4492437a5110.pdf
    • http://matt-dana-wedding.com/uploads/1/3/0/2/130289460/af877eb.pdf
    • http://mrmoneyfitness.com/uploads/1/3/0/4/130435531/4595901.pdf
    • http://ashlandkitchenevents.com/uploads/1/3/0/5/130541743/jusevazo.pdf
    • http://mosnaturalhaircare.com/uploads/1/3/0/7/130776555/a70a9c621a541cd.pdf
    • http://baijialechanglongdafa.br3h.com/uploads/1/3/0/9/130969967/130969967.html#enfermedad+de+chagas+epidemiologia+pdf
    • https://medlineplus.gov/spanish/chagasdisease.html

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001638.bin
f286ac59fc4ae8b807fa971e6926f8867841a4baebe9194ad22c24e50a6254ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1638 9272 bytes

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