Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d97beeb9aa6618a…

MALICIOUS

PDF

35.6 KB Created: 2021-07-10 00:31:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 1185a6c9e1106077aacd3abaef907e37 SHA-1: aaf8b82248e5f0278abfc14529fe010c041606b8 SHA-256: 3d97beeb9aa6618a84ba50f99d69d471121b5f8d53ace4ad7e9fe6f02ae6cd63
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link that redirects to a malicious website, likely a lure for game hacks or cheats. The ML classifier strongly flagged this PDF as malicious. The embedded URLs and the document body content, which includes references to game hacks and generators, support the conclusion that this document is designed to trick users into visiting a potentially harmful site.

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/coin-master-free-spins-game-hack In PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/free-ninja-legends-groups-roblox_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/free-online-games-like-roblox-bloxburg_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/money-hack-the-plaza-roblox_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/is-it-possible-to-hack-roblox-in-2021_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/hack-for-assasin-roblox_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/comment-cheat-sur-le-jeux-jailbreak-sur-roblox_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/get-free-catalog-items-roblox_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/alone-battle-roytale-roblox-hacks-script-copy-aimbot-esp_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/free-robux-2021-september_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/make-skins-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/hacking-2021-members-into-my-group-roblox_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/roblox-event-hack_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/free-roblox-backdoor-to-earn-robux_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/roblox-builders-club-free-download_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/roblox-dll-hacks_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/roblox-jailbreak-hack-dll_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/free-robux-games-no-verification_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/free-robux-app_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
stream_002_off000032df.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32DF 23980 bytes
SHA-256: bcf15ebfc67f759abe87d65a97a943ce86628da2c88b290c0136e24700bb0ae3
font_01_sfnt_off000068c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68C3 18176 bytes
SHA-256: c90cd52c690b3b1dd04b69356ad4f8db221968fb130a3d2ff71dcd50323a1a90

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