Malicious PDF — malware analysis report

Static analysis result for SHA-256 c372a9e9abea2aae…

MALICIOUS

PDF

51.4 KB Authoring application: Adobe PDF Library 9.0
MD5: c1722473d3cf5743a6d077244af26ef1 SHA-1: 923cc962dd12d2f3edf9e8598996a803cebaa09a SHA-256: c372a9e9abea2aae1defe7dc3e4e7177362c593fcfc9541f842cd1dbc6cffe9e
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs pointing to external PDF documents, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as phishing or traffic redirection. The embedded URLs are the primary indicators of compromise, suggesting a campaign focused on driving traffic to these external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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 https://luzisepig.weebly.com/uploads/1/3/0/2/130272385/294794.pdf
    • http://slot.cx/uploads/2020/01/27/novukeribiz.pdf
    • http://mupososew.itraktor.ru/uploads/2020/01/27/dolitod.pdf
    • https://zubajopa.weebly.com/uploads/1/3/0/5/130539357/sulototar.pdf
    • http://gobin.repuljvelunk.website/uploads/2020/01/27/8240652.pdf
    • https://motagugorumado.weebly.com/uploads/1/3/0/5/130588159/fifudiko-wowajedeguro.pdf
    • https://genusemis.weebly.com/uploads/1/3/0/5/130551279/mizitibu.pdf
    • https://zarapugu.weebly.com/uploads/1/3/0/2/130289222/tuxezabofed_jatufar_mirux.pdf
    • https://tasukevunoridu.weebly.com/uploads/1/3/0/2/130270899/2060542.pdf
    • http://zapawa.deepo.icu/uploads/2020/01/29/menenomubul_venes_fozopitukuvujax_rawides.pdf
    • http://fulizet.vlovs.fun/uploads/2020/01/27/kaweteziloji_fumibedasewur.pdf
    • http://vufaso.kiamotors.md/uploads/2020/01/27/xemowasiv.pdf
    • http://ruweseka.bbbqwer.info/uploads/2020/01/27/4074ed.pdf
    • http://pewi.festivalweer.com/uploads/2020/01/29/8c455147f961f7.pdf
    • http://www.informatiiinfinite.com/uploads/2020/01/29/8941778.pdf
    • https://nepidejax.weebly.com/uploads/1/3/0/4/130483118/gifoga_zawagojurakifek_zafizuromife_sizunid.pdf
    • http://luderuji.pay-pass.club/uploads/2020/01/28/9194299.pdf
    • http://valapusobi.coldmineral-soap.com/uploads/2020/01/27/9797681.pdf
    • https://rafilaluxonijew.weebly.com/uploads/1/3/0/4/130476150/130476150.html#astrology+birth+chart+report+in+hindi

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000153f.bin
7469641791215536d8ebbfb689a1222fe56b4105b96fc1c806d85d03ea3399e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x153F 7992 bytes
font_01_sfnt_off0000646e.bin
4ac539c55486544e73a027b596f6999ee061f728df55f883e2e189b0d69343da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x646E 7784 bytes
font_02_sfnt_off00007866.bin
e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7866 2652 bytes
font_03_sfnt_off00008136.bin
45c39c4315a5d00962143d4102937301eb2649728d6de39b959633cfc30365c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8136 16144 bytes

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