Malicious PDF — malware analysis report

Static analysis result for SHA-256 0590764ad8b9bd79…

MALICIOUS

PDF

42.3 KB Created: 2021-05-19 04:17:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: cc61a859587d7ed16ed2aee4c0b4afe2 SHA-1: 632031a0feb0d28ed09258732293fda9f0b907e6 SHA-256: 0590764ad8b9bd79276fd0741ec078372d17dc60f205eb07a7ecbebd1067afa9
220 Risk Score

Malware Insights

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

This PDF document employs social engineering tactics, specifically a 'game hack' lure, to trick users into clicking malicious links. The primary link redirects to known malicious infrastructure, suggesting it's part of a chain designed to deliver further payloads or phishing content. The document's structure and embedded URLs indicate an attempt to exploit user interest in free game-related items to compromise their systems.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 6

  • 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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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 https://netcdn.xyz/app/479516143/minecraft-for-free-games-game-hack In PDF document text
    • https://library.pqm.co.id/repository/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/coin-master-lucky-patcher-hack_GM406889139.pdfIn PDF document text
    • https://library.pqm.co.id/repository/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://library.pqm.co.id/repository/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/free-avatar-roblox_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://library.pqm.co.id/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://library.pqm.co.id/repository/free-roblox-com_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/coin-master-link-daily-get-free-spins-amp_GM406889139.pdfIn PDF document text
    • https://library.pqm.co.id/repository/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/robux-for-offers_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/free-minecraft-account-generator_GM479516143.pdfIn PDF document text
    • https://library.pqm.co.id/repository/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/coin-master-hack-without-verification-code-2021_GM406889139.pdfIn PDF document text
    • https://library.pqm.co.id/repository/100-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://library.pqm.co.id/repository/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/coin-master-free-coins-link-march-2021_GM406889139.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_off00004c21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C21 24424 bytes
SHA-256: 8193d34b4fe70145d0793314bed1b3a902df2f94639a535ad6d9305dda26a1bb
font_01_sfnt_off000083fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83FB 17968 bytes
SHA-256: 9a9d2dfa5c0c54fa5ffdde25f1de4b21c6a9e15afbe55fd2a9ef8b08bad6b0a2

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