Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bd9c90c5cbda2d1…

MALICIOUS

PDF

44.9 KB Authoring application: Inkscape
MD5: f061632975f5dccd0e384c476ecb84b9 SHA-1: d6d8bac7ce6ffac1aba27cb8f89dbf188395b84f SHA-256: 0bd9c90c5cbda2d12cb628a0a904d8ec9bdd34c9e4f10c8d3411285cd2ccb2d6
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute further malicious content. ClamAV detected this file as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', and an ML classifier also flagged it as malicious. The document body's content is largely unreadable due to truncation and encoding issues, but the presence of numerous external links is the primary indicator of malicious intent.

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://007securitynetworking.com/uploads/1/3/0/5/130538945/labapi.pdf
    • http://ahwv.org/uploads/1/3/0/4/130483961/2e2d6d45251cd0.pdf
    • http://rentalsandroomates.net/uploads/1/3/0/5/130540072/gibaxubapifowobiloza.pdf
    • http://alpurpletaxi.com/uploads/1/3/0/7/130775518/safefezemu.pdf
    • http://pmehard.com/uploads/1/3/0/5/130540366/3688189.pdf
    • http://kittenconvict.net/uploads/1/3/0/2/130288397/latamil_tuxatadajeve_boter_jinawivabo.pdf
    • http://opiniononline.net/uploads/1/3/0/2/130271234/16b711.pdf
    • http://midicicr.com/uploads/1/3/0/3/130313115/gozatejuxirofa-wasizureki.pdf
    • http://athleticpromoters.com/uploads/1/3/0/6/130639779/dd6dddf3.pdf
    • http://milliehoffman.com/uploads/1/3/0/8/130813496/1a922af0ad5b0.pdf
    • http://bellevistaassistedliving.com/uploads/1/3/0/7/130775199/5865887.pdf
    • http://n715dp.com/uploads/1/3/0/5/130541597/wowawawumofet.pdf
    • http://www.rustb-b.com/uploads/1/3/0/7/130739316/2605837.pdf
    • http://kiemtratenmien.net/uploads/1/3/0/3/130323337/69e72.pdf
    • http://almanaquecircular.com/uploads/1/3/0/6/130621744/zalaf.pdf
    • http://americanbedbreakfast.com/uploads/1/3/0/5/130543154/mikadizonagafe_batageta_zefejegozofutem.pdf
    • http://newlifewatersolutions.com/uploads/1/3/0/2/130273735/4764305.pdf
    • http://amashengebusinessholdings.co.za/uploads/1/3/0/2/130272353/9130104.pdf
    • http://introvertsrun2.com/uploads/1/3/0/6/130639030/kesiwu.pdf
    • http://scarletcarnival.com/uploads/1/3/0/3/130324331/62662b2.pdf
    • http://stopeurocide.com/uploads/1/3/0/5/130541140/130541140.html#simple+shapes+coloring+pages+preschoolers

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004fb8.bin
df425df4a49fc7edc14a20c5f03d1c1e352f005281f054adda1238235bd3e415		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FB8 8272 bytes

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