Malicious PDF — malware analysis report

Static analysis result for SHA-256 57249397c5641248…

MALICIOUS

PDF

86.4 KB Created: 2018-03-21 10:04:32 -04:00 Authoring application: RAD PDF (via RAD PDF 3.4.2.0 - http://www.radpdf.com) First seen: 2019-01-31
MD5: f24f33dfd99a28b1148d83c47b39784f SHA-1: db0f548f48465eec7eccffc1d9e2fd5268dab985 SHA-256: 57249397c564124811e7d385e0d108e4495de1d812d95579313bc61bb108b330
72 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF document is primarily image-based, employing a common phishing lure technique. It contains a call-to-action phrase and an embedded URL that directs the user to 'http://sman1bogor.sch.id/rxfrtg/Microsoft'. This URL is likely intended to host a malicious payload or redirect to a phishing page, aiming to trick the user into downloading or interacting with further malicious content.

Machine Learning

  • Nyx PDF Classifier clean score 0.0314

Heuristics 5

  • Image-only PDF lure links to a brand-impersonating path on an unrelated host high PDF_IMAGE_LURE_BRAND_PATH_LINK
    PDF is image-heavy with little real text and its clickable action targets a URL carrying a brand name ('microsoft') as a path segment on a host that does not belong to that brand and is not known-good (e.g. 'sodecoperu.com/Docusign/index.php'). This is the credential-phishing carrier shape where a compromised or unrelated host serves a brand-named phishing kit behind a screenshot-like lure page. Distinct from the typosquat-host rule: here the host is honest-looking but the brand lives in the path.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 2 image(s), only 0 text block(s), carries a click-outward action, and is only 86 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://sman1bogor.sch.id/rxfrtg/Microsoft PDF link annotation
    • http://www.radpdf.comIn PDF document text
    • http://www.radpdf.com)/Author(GoogleIn PDF document text
    • http://www.dynaforms.comIn PDF document text
    • https://rtran11.000webhostapp.com/ibIn PDF document text
    • http://richarddong76.000webhostapp.com/ibbIn PDF document text
    • https://app-1529532337.000webhostapp.com/tgv//error.htmlIn PDF document text
    • https://hopefeinberg.000webhostapp.com/argt//error.htmlIn PDF document text
    • https://juliehopeschopps.000webhostapp.com/ibbr//error.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://www.microsoft.com/typography/ctfontshttp://lucasfonts.comMicrosoftIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text
    • http://www.microsoft.com/typography/fonts/default.aspxIn PDF document text
    • http://crl.microsoft.com/pki/crl/products/MicrosoftTimeStampPCA.crl0XIn PDF document text
    • http://www.microsoft.com/pki/certs/MicrosoftTimeStampPCA.crt0In PDF document text
    • http://crl.microsoft.com/pki/crl/products/microsoftrootcert.crl0TIn PDF document text
    • http://www.microsoft.com/pki/certs/MicrosoftRootCert.crt0In PDF document text
    • http://www.microsoft.com/pkiops/crl/MicCodSigPCA2011_2011-07-08.crl0aIn PDF document text
    • http://www.microsoft.com/pkiops/certs/MicCodSigPCA2011_2011-07-08.crt0In PDF document text
    • http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl0^In PDF document text
    • http://www.microsoft.com/pki/certs/MicRooCerAut2011_2011_03_22.crt0��In PDF document text
    • http://www.microsoft.com/pkiops/docs/primarycps.htm0@In PDF document text
    • http://www.microsoft.com/TypographyIn PDF document text

Related samples 8

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_off00001132.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1132 73424 bytes
SHA-256: d3f6a757191bfc001fc90633aa22474a1814f6cc6d6bed190bee03ca13fba3d7

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