Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d1f488215098092…

MALICIOUS

PDF

37.7 KB Authoring application: OpenOffice.org
MD5: e3d0d9a8e9a29bec2c9f283afdcf4244 SHA-1: 0258616ca0533217001626e6a8a262bf3b9ddc1b SHA-256: 3d1f48821509809253061193bf84ee8faaeffec3e55199f06ad6aca205fd9c6a
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to other PDF files, a technique often used for SEO poisoning or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. The document body, though corrupted, contains references to Adobe After Effects templates, suggesting a lure to disguise the malicious nature of the links.

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://lapsonsplace.com/uploads/1/3/0/7/130776201/karazuti_bebubilu.pdf
    • http://fancyts.org/uploads/1/3/0/8/130873918/bivobatigusej.pdf
    • http://stringsoil.com/uploads/1/3/0/5/130542948/jezetenetoligakota.pdf
    • http://prometheusmagazine.com/uploads/1/3/0/6/130620585/3542106.pdf
    • http://mezalejandro.com/uploads/1/3/0/8/130814187/1eef969a.pdf
    • http://www.temmasbatmitzvahproject.com/uploads/1/3/0/6/130639197/womafedimifofow.pdf
    • http://jakeskyler.com/uploads/1/3/0/4/130435781/votaxane-dafiv-fubifirog.pdf
    • http://sakura-pak.org/uploads/1/3/0/6/130639342/lurojovebalevenegede.pdf
    • http://distantjove.com/uploads/1/3/0/6/130604225/pinewa-monefu-paverarurixoj-vedawovidip.pdf
    • http://otaralaw.org.nz/uploads/1/3/0/4/130476485/5972507.pdf
    • http://www.theamznvincisystem.com/uploads/1/3/0/5/130539457/nikodexifu.pdf
    • http://californiaapprovedpipespecialist.com/uploads/1/3/0/7/130739945/c5029500dca02.pdf
    • http://arlingtoncarpetcleaner.com/uploads/1/3/0/7/130775386/137679.pdf
    • http://jessica-and-jaso-1.rominastiebenphotography.com/uploads/1/3/0/9/130969825/130969825.html#adobe+after+effects+cs6+audio+spectrum+download

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000328b.bin
7284a3cc3b7333fac7890076d41151c8fdad1da135f2fef19bf1cc029390c1c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x328B 12120 bytes

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