Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e7e7b30c24b7a9b…

MALICIOUS

PDF

58.1 KB Authoring application: LibreOffice
MD5: e4102a6865573975bc5852f399369a93 SHA-1: f4a1cbae38af702186c3c156f76b45207439483f SHA-256: 4e7e7b30c24b7a9bd4fb509e2a4d0d878c2ba89b658cae1a9fecfa94bd2af691
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to other PDF files, a technique often used for SEO spam or to distribute malware. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent. The document body appears to be corrupted or contains obfuscated content, preventing a deeper analysis of its specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://shamrockcustomhouses.com/uploads/1/3/0/5/130588415/bumipeker_razaral_luxidopijowi.pdf
    • http://g6ranchwimberley.com/uploads/1/3/0/2/130288444/tetom.pdf
    • http://hostmaster.rpenalaw.com/uploads/1/3/0/8/130874634/lexuji_soloparugedad_zamubeveru.pdf
    • http://macmarketplace.net/uploads/1/3/0/7/130776309/6111173.pdf
    • http://www.aarondutil.com/uploads/1/3/0/6/130603932/fidilerufowitudal.pdf
    • http://www.bridgetonindexportfolios.com/uploads/1/3/0/3/130313192/poraroxifikom_jogodegux_rekigijupapinis_fezufezarovadu.pdf
    • http://wellmedexpress.com/uploads/1/3/0/3/130313263/jojosoronov.pdf
    • http://superradtees.com/uploads/1/3/0/8/130874533/lesifujutovox-xisoparetuvede-tuzowojo.pdf
    • http://mycityrebate.com/uploads/1/3/0/7/130776407/vafifirunanunenuja.pdf
    • http://www.yourhomedesigns.us/uploads/1/3/0/6/130639026/4ddbf1.pdf
    • http://paradoxicalreality.net/uploads/1/3/0/5/130590108/6293677.pdf
    • http://bssspr.com/uploads/1/3/0/4/130435772/8924487.pdf
    • http://moocpa.com/uploads/1/3/0/7/130776818/9522734.pdf
    • http://slowgather.com/uploads/1/3/0/8/130873976/bigabonor.pdf
    • http://thehappyhedon.com/uploads/1/3/0/7/130739845/0073a5980f4d5e.pdf
    • http://michellecortese.com/uploads/1/3/0/7/130740456/jomuzusalalun.pdf
    • http://tcgmgm.com/uploads/1/3/0/6/130639500/jejadomogese-dobafupe-fopubol.pdf
    • http://host109.carmichaelnl.com/uploads/1/3/0/9/130969963/130969963.html#time+complexity+and+space+complexity+in+design+and+analysis+of+algorithms

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006339.bin
4552b00a254e06eb46935c60e3465877a7d3a19a873bc0dada12464c434cbe82		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6339 16088 bytes
font_01_sfnt_off00007794.bin
e2a609504f31aba74360c8f97aead3d8f97c76e888a653261413c8bef59e3205		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7794 2884 bytes
font_02_sfnt_off00008472.bin
00280da549656df2f39aad012b2e5e64f3d48d69c02560ded513da58a48b6a70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8472 8848 bytes

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