Malicious PDF — malware analysis report

Static analysis result for SHA-256 6abf5fa4f3c2ad66…

MALICIOUS

PDF

34.6 KB Authoring application: QPDF
MD5: eb461e2737e5167c0222d0eb55a1aee4 SHA-1: 75f24be3bd8f65c78ff00816bbe9bed2aca46025 SHA-256: 6abf5fa4f3c2ad66c0fd49d37c50cf5f85632a18508c8956e0dd92591bbd4b85
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified as a link farm. The ClamAV detection and ML classifier strongly indicate maliciousness, specifically a phishing or redirection attempt. The embedded URLs are likely used to host or redirect to malicious content.

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://cataniainunclick.com/uploads/1/3/0/6/130621143/jixigamefav-jiruke-fidexowuzuse-dolilugu.pdf
    • http://beamazingbrasil.com/uploads/1/3/0/4/130436252/905098.pdf
    • http://boxedpandavpn.com/uploads/1/3/0/8/130814432/91a81cb.pdf
    • http://paintingcontractorct.com/uploads/1/3/0/8/130813146/becbc8.pdf
    • http://lexington-mls.com/uploads/1/3/0/8/130814195/femafoti-tusavisafa-balipatotuvuxe-belawewiti.pdf
    • http://makersretail.com/uploads/1/3/0/3/130313809/b57fd036e65e.pdf
    • http://arctictreasures.shop/uploads/1/3/0/6/130620660/sipukawulitera-sekurezezowuvi-xifip.pdf
    • http://jacbrondum.com/uploads/1/3/0/6/130620873/tezifanijarez.pdf
    • http://myrtle-beach-speeding-ticket-lawyer.com/uploads/1/3/0/6/130639805/9013963.pdf
    • http://irvingtonhistorical.net/uploads/1/3/0/3/130324027/81f319b.pdf
    • http://msmagnosjcs.com/uploads/1/3/0/6/130604401/3001461.pdf
    • http://philomatheantrust.com/uploads/1/3/0/2/130274304/sowarabozaloxa_zadofepatu_sofogidanomemo_jitukupixepepa.pdf
    • http://mergeperfect.com/uploads/1/3/0/4/130436222/figidivivi.pdf
    • http://rjhomecontractor.com/uploads/1/3/0/7/130775985/387b8f145ec1ef7.pdf
    • http://gnifhngq.brdge.org/uploads/1/3/0/4/130483271/130483271.html#what+is+the+difference+between+drug+abuse+and+drug+addiction

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f80.bin
622b7b63228b047a11294713139a11eca1ebbe32c3a03ce1a906586a0d100749		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F80 7036 bytes

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