Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7234035eb7c6374…

MALICIOUS

PDF

34.9 KB Created: 2021-06-29 11:47:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fa3138560875fb6b518916b7a8daadf0 SHA-1: bd8ea1a22fccae9ff3b3fe7654c7b79e21ca58c4 SHA-256: c7234035eb7c6374957909952ea2a1e7d8d5a26053df96c6ec07a088cef876fc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as lures for game hacks and free currency. The document body and embedded links suggest a phishing attempt to trick users into visiting these sites, likely to download further malware or engage in scams. No scripts were extracted, but the presence of malicious redirector links is a strong indicator of malicious intent.

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-robux-icon-game-hack In PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/how-to-get-real-robux_GM431946152.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/hack-coin-master-game-apk-download_GM406889139.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/pokemon-go-free-wallhack_GM1094591345.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/roblox-free-pets_GM431946152.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/how-to-download-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/blox-fun-info_GM431946152.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/what-is-robux_GM431946152.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/coin-master-hacks-for-pet-food_GM406889139.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/coin-master-hack-version-2021_GM406889139.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/free-robux-2021-youtube_GM431946152.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/how-to-hack-items-into-your-roblox-account_GM431946152.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/free-roblox-adopt-me-accounts_GM431946152.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
font_00_sfnt_off00003286.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3286 22320 bytes
SHA-256: da12cc62d50e8b982643634003d8b782ab963a505b7c804220e0a44f34d1f409
font_01_sfnt_off00006455.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6455 18716 bytes
SHA-256: 44d29afb0a9e368cdbdf68a8d57798315ad816ae3ccdaf310de476a58a088a21

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