Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e185938025e184d…

MALICIOUS

PDF

34.8 KB Created: 2021-06-19 09:34:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 9dc8f2b1b34da2012cdabebf8de6d8d8 SHA-1: 8424f132ed325111bab7f6ee6bbe6de46c1a7f52 SHA-256: 0e185938025e184dd18574db2ab15743c21cc5fe1877dc69fd3091f338fb29c9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating malicious redirector links, specifically targeting users with lures for game hacks and generators. The primary malicious URL identified is http://netcdn.co/app/431946152/fly-hack-roblox-weight-sim-game-hack, which is linked to known malicious infrastructure. The document's content and structure strongly suggest an attempt to trick users into navigating to this harmful site, likely for further exploitation or malware delivery.

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/fly-hack-roblox-weight-sim-game-hack In PDF document text
    • http://digilib.stimlog.ac.id/repository/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-minecraft-client_GM479516143.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/www-free-robux-com_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/pokemon-go-free-promo-code_GM1094591345.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-spins-for-free-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/minecraft-realms-free_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-spin-link_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-minecraft-codes-2021_GM479516143.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/www-rbx-com_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/all-roblox-bloxburg-hack-2021_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/minecraft-net-free_GM479516143.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-to-get-free-robux-on-roblox-october-2021_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-to-get-free-clothes-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-free-spins-on-coin-master-without-waiting_GM406889139.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
font_00_sfnt_off00002eea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EEA 22348 bytes
SHA-256: 4c73b2b3f1679da5b85685137297ba11a9efd5440d23b73ea094cc2604b96946
font_01_sfnt_off000060a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A3 19848 bytes
SHA-256: 9a6813d477da357df4b7b46ec08d9e617bb94c57b1ae5859c71f3000a0a15286

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