Malicious PDF — malware analysis report

Static analysis result for SHA-256 bab4ce5a0b94a3ca…

MALICIOUS

PDF

35.2 KB Created: 2021-06-27 13:28:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 058fd0ffda8f6a764b82003835d099f1 SHA-1: d68752dbdd37e83538aaf8978fa114249fdf47be SHA-256: bab4ce5a0b94a3ca4a052fd672ed536756dbaea05092dfefe0dba3de0ff888bb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and generators, directing users to a known malicious redirector. The document body and embedded URLs indicate a phishing attempt to trick users into visiting malicious sites. The presence of multiple links to similar scam-related PDFs suggests a campaign focused on credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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://netcdn.co/app/431946152/free-code-for-huge-cat-pet-in-roblox-2021-game-hack In PDF document text
    • http://www.riverkennet.org/uploads/files/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/how-to-make-a-minecraft-client_GM479516143.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/free-promotional-code-roblox_GM431946152.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/minecraft-java-code-free_GM479516143.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/coin-master-free-spins-uk_GM406889139.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/minecraft-apk-114_GM479516143.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/roblox-money-hack_GM431946152.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/free-robux-no-human-verification-no-survey-2021_GM431946152.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/free-robux-link_GM431946152.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/coin-master-hack-app-for-ios_GM406889139.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/growtrooperz-free-robux_GM431946152.pdfIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003195.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3195 22204 bytes
SHA-256: a3651aa7b4df3a5373a57fb68758d484b3594a8d76c3bf29c86e3574d200a455
font_01_sfnt_off000062c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C3 19624 bytes
SHA-256: 63287f1324d325b1276afd3d271a69d3650b11b0b9c532e16c5f769c5627b24d

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