Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d1f488215098092…

MALICIOUS

PDF

37.7 KB Authoring application: OpenOffice.org First seen: 2020-09-24
MD5: e3d0d9a8e9a29bec2c9f283afdcf4244 SHA-1: 0258616ca0533217001626e6a8a262bf3b9ddc1b SHA-256: 3d1f48821509809253061193bf84ee8faaeffec3e55199f06ad6aca205fd9c6a
192 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 4

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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 In PDF document text
    • http://fancyts.org/uploads/1/3/0/8/130873918/bivobatigusej.pdfIn PDF document text
    • http://stringsoil.com/uploads/1/3/0/5/130542948/jezetenetoligakota.pdfIn PDF document text
    • http://prometheusmagazine.com/uploads/1/3/0/6/130620585/3542106.pdfIn PDF document text
    • http://mezalejandro.com/uploads/1/3/0/8/130814187/1eef969a.pdfIn PDF document text
    • http://www.temmasbatmitzvahproject.com/uploads/1/3/0/6/130639197/womafedimifofow.pdfIn PDF document text
    • http://jakeskyler.com/uploads/1/3/0/4/130435781/votaxane-dafiv-fubifirog.pdfIn PDF document text
    • http://sakura-pak.org/uploads/1/3/0/6/130639342/lurojovebalevenegede.pdfIn PDF document text
    • http://distantjove.com/uploads/1/3/0/6/130604225/pinewa-monefu-paverarurixoj-vedawovidip.pdfIn PDF document text
    • http://otaralaw.org.nz/uploads/1/3/0/4/130476485/5972507.pdfIn PDF document text
    • http://www.theamznvincisystem.com/uploads/1/3/0/5/130539457/nikodexifu.pdfIn PDF document text
    • http://californiaapprovedpipespecialist.com/uploads/1/3/0/7/130739945/c5029500dca02.pdfIn PDF document text
    • http://arlingtoncarpetcleaner.com/uploads/1/3/0/7/130775386/137679.pdfIn PDF document text
    • http://jessica-and-jaso-1.rominastiebenphotography.com/uploads/1/3/0/9/130969825/130969825.html#adobe+after+effects+cs6+audio+spectrum+downloadIn PDF document text

Related samples 4

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_off0000328b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x328B 12120 bytes
SHA-256: 7284a3cc3b7333fac7890076d41151c8fdad1da135f2fef19bf1cc029390c1c4

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