Malicious PDF — malware analysis report

Static analysis result for SHA-256 d01e2c96acaaf44d…

MALICIOUS

PDF

40.3 KB Created: 2021-05-20 20:09:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 87db629efa655768f722f70c8cb323e0 SHA-1: 0a350591f2b361ba1ede21f14790ad1912fc3001 SHA-256: d01e2c96acaaf44dfadd64b6e3cf40185fb84905cf0513b4828e0422867d1432
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. It uses brand-impersonation credential phishing. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7885

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/how-to-hack-roblox-accounts-game-hack.
  • 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 https://netcdn.xyz/app/431946152/how-to-hack-roblox-accounts-game-hack PDF link annotation
    • https://elearning.man2tanahdatar.sch.id/__statics/gudangsoal/files/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man2tanahdatar.sch.id/__statics/gudangsoal/files/free-robux-mobile_GM431946152.pdfIn PDF document text
    • https://elearning.man2tanahdatar.sch.id/__statics/gudangsoal/files/coin-master-free-spins-deutsch-download-ios-link_GM406889139.pdfIn PDF document text
    • https://elearning.man2tanahdatar.sch.id/__statics/gudangsoal/files/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://elearning.man2tanahdatar.sch.id/__statics/gudangsoal/files/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • https://www.nrzroblox.comIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003466.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3466 25080 bytes
SHA-256: 711f3bfdcb2fd30edf4e770643741d305dab1c07ab4eef7d14c985a5dcf9c7a0
font_01_sfnt_off00006e20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E20 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off00007ac7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AC7 18588 bytes
SHA-256: 7bfa318362f39458d7d6cfaed4b7fb6212c616d22e88bbb7e9e73b07c323fe95

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