Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ad6ce7e441e3929…

MALICIOUS

PDF

45.3 KB Created: 2021-04-24 13:47:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: caeb9952b5b304fbe157fb701db69cc3 SHA-1: 0196fee7ce9a8e13a5ce0a9472213a2a0eac8181 SHA-256: 4ad6ce7e441e392935743a3fe9d6ced303b646cc27d249b93d6137051f5d2bfe
122 Risk Score

Malware Insights

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

This PDF document employs a lure related to game hacks and generators, impersonating the Chase brand to trick users into clicking a link. The primary link directs to "netcdn.xyz", which is not associated with Chase, indicating a credential phishing or malware distribution attempt. The document's content and embedded links suggest it is designed to lead users to potentially malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9807

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/nuevo-hack-para-dragon-ball-rage-cesarius-roblox-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/nuevo-hack-para-dragon-ball-rage-cesarius-roblox-game-hack PDF link annotation
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/script-roblox-hack-2021.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/roblox-free-clolthes.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/how-to-hack-free-robux-on-pc.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/free-clotrhes-roblox.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/how-to-hack-a-person-roblox.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/free-synapse-x-key-roblox.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/comment-hacker-mad-city-roblox.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/roblox-hack-gui-mac.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/bc-free-roblox-android.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/how-to-bypass-roblox-anti-cheat-cheat-engine-66.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000042c9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x42C9 26972 bytes
SHA-256: ec0892244b518432a60344096ef17ea9d415b2a45b9f03bfa05ed4c5a015adce
font_01_sfnt_off0000801c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x801C 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off00008cc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CC4 19168 bytes
SHA-256: 25a6aea663fbb41edbc3e7a6ab0fa76a715ee0dd141c2102903642ce22e08840

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