Malicious PDF — malware analysis report

Static analysis result for SHA-256 87add92a88258636…

MALICIOUS

PDF

46.2 KB Created: 2021-05-17 19:41:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: fb971c5cff33ce25b37d79b3ae7ddf3c SHA-1: 452c53c41cdca5370c134cf0cbe9bc1b74747e03 SHA-256: 87add92a88258636ec78a7047d192945d7d53a2260fb5f293c00121c34d248d1
180 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as "free generator / game hack" lures. The document body and embedded URLs reinforce this theme, aiming to trick users into visiting potentially harmful sites. The ML classifier also flagged this PDF as malicious, increasing confidence in the assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

Heuristics 5

  • 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.
  • 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) 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/431946152/how-to-get-free-robux-game-hack In PDF document text
    • http://eddieblum.nl/images/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://eddieblum.nl/images/minecraft-alt-accounts-free_GM479516143.pdfIn PDF document text
    • http://eddieblum.nl/images/how-to-get-free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://eddieblum.nl/images/facebook-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://eddieblum.nl/images/coin-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://eddieblum.nl/images/coin-master-mod-version-free-download-v344_GM406889139.pdfIn PDF document text
    • http://eddieblum.nl/images/clients-minecraft_GM479516143.pdfIn PDF document text
    • http://eddieblum.nl/images/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://eddieblum.nl/images/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • http://eddieblum.nl/images/i-robux_GM431946152.pdfIn PDF document text
    • http://eddieblum.nl/images/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://eddieblum.nl/images/hacked-roblox-accounts-list_GM431946152.pdfIn PDF document text
    • http://eddieblum.nl/images/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://eddieblum.nl/images/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • http://eddieblum.nl/images/coinmaster_GM406889139.pdfIn PDF document text
    • http://eddieblum.nl/images/coin-master-tricks_GM406889139.pdfIn PDF document text
    • http://eddieblum.nl/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://eddieblum.nl/images/free-spins-and-coins-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://eddieblum.nl/images/how-to-hack-in-arsenal_GM431946152.pdfIn PDF document text
    • http://eddieblum.nl/images/free-girl-hair-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46E7 28108 bytes
SHA-256: 6a249b130b34e99f2ac452e682c27018ea4cadf3f86f492d6396ddad3f6597fc
font_01_sfnt_off00008839.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8839 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off000091ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91EA 18280 bytes
SHA-256: 2eeeedfcb2f224ab556fa0ab031baeab03f86dcbcf90e3baaaf5b6d88536dec3

Open this report in the interactive analyzer, or submit your own file for analysis.