Malicious PDF — malware analysis report

Static analysis result for SHA-256 60fc856efd29b238…

MALICIOUS

PDF

34.6 KB Created: 2021-07-04 13:18:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: f0af7fb3746ff0ce3ca6d7ae18c26b81 SHA-1: dd14017858d1a9d06c85d5dd54c57c5f962c0733 SHA-256: 60fc856efd29b238afa9420bd324eb644c10806e8d480200366c92dbff1c936d
160 Risk Score

Malware Insights

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

This PDF document employs a lure of free game currency and hacks to entice users to click on links. These links lead to known malicious redirectors and further malicious PDF files hosted on domains like netcdn.tw and muslib.unmus.ac.id. The document's content and embedded URLs strongly suggest a phishing or scam campaign designed to lead users to potentially harmful content or exploit kits.

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.tw/app/406889139/how-to-get-free-cards-sets-for-coin-master-game-hack In PDF document text
    • http://muslib.unmus.ac.id/repository/btools-roblox-hack-download-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-spins-coin-master-2021-app_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/get-free-robux-no-survey-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-hack-free-intstant-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/how-to-get-free-pets-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-node-cheat-engine_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-hack-on-roblox-in-3_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/fishing-simulator-roblox-hack-vehicle-mods_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/roblox-hackprogamers-com_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-hack-mod-apk-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-promo-codes-roblox-2021-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/karina-roblox-zombie-free-zones_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-hack-knives-in-assassin-roblox_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/minecraft-images-free_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000031df.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31DF 22628 bytes
SHA-256: a32575781eb8c37ed7ec30077dd24122095b4cc64fb0e74d4f8c11bf6a5c44ed
font_01_sfnt_off00006453.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6453 18336 bytes
SHA-256: 62ea76718c89f31a7c4f45c7431c072c385949a102d4bb066ded9903bb79e822

Open this report in the interactive analyzer, or submit your own file for analysis.