Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1f9afd6ec47ea13…

MALICIOUS

PDF

36.5 KB Created: 2021-06-29 19:55:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: f096c48d110ae25dd4f1d8d4b46aa04a SHA-1: 857f14192fdbb62bad1e690e0af8ad8790197276 SHA-256: b1f9afd6ec47ea13002b85b7611e20a7a19f12c159fb039a69c29a4d4e412c67
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free currency to trick users into clicking malicious links. The primary link, http://netcdn.co/app/431946152/money-hack-jailbreak-roblox-game-hack, is identified as a malicious redirector. The document body and embedded URLs reinforce this theme, suggesting a phishing or scam campaign. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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/money-hack-jailbreak-roblox-game-hack In PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/free-robux-no-buying-anything_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-human-verification-and-survey_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/how-to-get-free-money-on-bloxburg-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/roblox-jailbreak-hack-speed_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/minecraft-free-online-games_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/free-executor-roblox-no-key_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/on-roblox-how-do-you-get-free-bc_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/how-to-get-dominus-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/hack-aimbot-roblox-gartis_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/only-today-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/roblox-star-wars-lightsaber-battles-hacks_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/free-roblox-account-v3rmillion_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/roblox-hacked-by-blueroes_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_off000034cd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34CD 23192 bytes
SHA-256: fe0b99c70c3b974188a59e7c6a30367ac7515c65e0b2a46e2d5ed4dcf044f2b0
font_01_sfnt_off000068e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68E4 19320 bytes
SHA-256: 3827f07b8f4562468abedb3e4ebf267cc6fb0f95397b2ab6e774a2dac9621635

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