Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d1daeb5e80047e9…

MALICIOUS

PDF

39.1 KB Authoring application: Inkscape
MD5: bb8519fdcc55fb280a11424694ac2b5d SHA-1: 3a3cb4425dc546b94a0518ae18a108692b6254bc SHA-256: 6d1daeb5e80047e95371272d6553dd8878b5c8f2642ce5f9e7cc3144600063bb
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified as a link farm, which is a common tactic for SEO manipulation or distributing malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the presence of embedded URLs and the heuristic firings suggest the document is designed to redirect users to potentially harmful external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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://tandmdesignsllc.com/uploads/1/3/0/2/130270746/luvonanusomonu.pdf
    • http://sushiwallet.com/uploads/1/3/0/6/130605186/poxeropumeweme_kekulegumi_juzaxa.pdf
    • http://www.caliglitz.com/uploads/1/3/0/5/130539933/zetez.pdf
    • http://film-studio.london/uploads/1/3/0/7/130739558/semisojipudulata.pdf
    • http://slccabroad.com/uploads/1/3/0/7/130738944/e717c77f906fae0.pdf
    • http://alexapeters.com/uploads/1/3/0/7/130740173/6634998.pdf
    • http://www.jandaservicesal.com/uploads/1/3/0/8/130814430/narimofesipo.pdf
    • http://www.qualityirrigationllc.com/uploads/1/3/0/3/130379474/05c8816.pdf
    • http://my-mediamatters.tech/uploads/1/3/0/6/130620951/f067d2ee5d1f12.pdf
    • http://mail.andrewscole.com/uploads/1/3/0/8/130813898/b87fd91.pdf
    • http://brightlightconstructionllc.com/uploads/1/3/0/6/130621086/jaxarikotogakud.pdf
    • http://cd1kjn.bdgct.com/uploads/1/3/0/5/130588344/f7f2ddff9d73f36.pdf
    • http://www.emilycurl.com/uploads/1/3/0/7/130738921/jidoboxe-wurenemivaku-fejab-wuritafivif.pdf
    • http://childrensbhc.net/uploads/1/3/0/2/130289554/6428252.pdf
    • http://livemusicgozo.com/uploads/1/3/0/3/130324044/kupisobezad.pdf
    • http://newearthwarrior.org/uploads/1/3/0/5/130540282/xujuvobokos.pdf
    • http://www.joice.thatsclass.com/uploads/1/3/0/7/130739073/8de8e.pdf
    • http://abbymenagerie.com/uploads/1/3/0/5/130551890/fozili.pdf
    • http://exquisiteplay.com/uploads/1/3/0/3/130323190/dizofuzabusu-wijaxetobegiv-misabaf-jexusupegap.pdf
    • http://pendulumhealing.com/uploads/1/3/0/5/130539774/roxezut.pdf
    • http://velobless.com/uploads/1/3/0/7/130738531/gaburo-nokuwavamagokif-mimuxizetazude-jukuluviva.pdf
    • http://traind.me/uploads/1/3/0/5/130540814/kivib.pdf
    • http://www.reemsaeed.net/uploads/1/3/0/5/130539111/fcb7273c15ebc8.pdf
    • http://ldhbuyshomes.com/uploads/1/3/0/6/130621125/wexatubakunakem.pdf
    • http://alppicvh.brdge.org/uploads/1/3/0/6/130603702/130603702.html#online+merge+two+pdf+files+into+one

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003469.bin
3b71e1f09fb6d87d336c5dd11ef585353ef0e54d22bc65b7e27c59c1ca7bc015		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3469 8256 bytes

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