Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbeb3396ccf07f51…

MALICIOUS

PDF

56.4 KB Created: 2021-06-04 05:02:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 0711d42c45ac3ea96556db4ee99569c1 SHA-1: 174e01596df74b5054068c1b4291fe7f0c397059 SHA-256: dbeb3396ccf07f517a5675f54e44cbc57da08dba03e199f16fcdc6f3d332911c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. 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 0.9360

Heuristics 4

  • 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.
  • 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.online/app/431946152/free-roblox-gift-card-codes-2021-unused-game-hack PDF link annotation
    • http://www.pustaka.pn-calang.go.id/repository/get-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/hack-coin-master-apk-33_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-hack-apk-with-fb-login-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/roblox-boga-boga-god-armor-and-god-rock-hack_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/gamehunters-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/pokemon-go-free-nickname_GM1094591345.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/hack-roblox-magnet-simulator_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-village-3_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-hack-version-download-2021-android_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-get-coins-on-tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-hacks-android_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005028.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5028 34640 bytes
SHA-256: 18090fad8b3ba6343faf2a745dd46ae97a99211cb9e2edf2aa1a68012acb1ec6
font_01_sfnt_off00009fe5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FE5 2880 bytes
SHA-256: a2abb16672545dc40f4313872ce9cfa8d16eaf92960bd568423d37121421eaee
font_02_sfnt_off0000a9cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9CC 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_03_sfnt_off0000b6de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6DE 19304 bytes
SHA-256: d6f20b3ebf518ac20c616d793a05e273db5ac27cf7bb96dde15642c09c9075e4

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