Malicious PDF — malware analysis report

Static analysis result for SHA-256 182c74d9e51dff1f…

MALICIOUS

PDF

35.6 KB Created: 2021-06-30 09:06:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 5cc4177be6d11d83e26afe5486f1f37c SHA-1: 76ebd584360c5f15bf8a3dc5b6d7aaa1eef27493 SHA-256: 182c74d9e51dff1f5d24fd67cf5fb8ec7d1471b51a84555e670baea511ac58ec
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The document body and heuristics indicate a lure designed to trick users into clicking these links, likely leading to further malware or phishing. No scripts were extracted from this sample, but the presence of malicious redirector links is a strong indicator of a phishing or malware distribution attempt.

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-trade-upgrader-roblox-game-hack In PDF document text
    • https://elearning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-on-mobile_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/roblox-dominus-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/minecraft-is-free-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/pet-sim-online-hack-download-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/guess-that-song-cheat-sheet-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-pc_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/cheat-engine-executor-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/roblox-skins-boy-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/coin-master-hack-version-apk-download_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-jeuxvideocom_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/promo-code-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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
font_00_sfnt_off000032c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32C5 23000 bytes
SHA-256: 0b5efa213c20a8bc87f68a761fa6a35d56c8317061efeb1538a6583bc19c8650
font_01_sfnt_off00006672.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6672 19000 bytes
SHA-256: f10c22cef8fecb9c24dd8252559bcbca6a850c8c216e2b59a72c4eb112134c32

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