Malicious PDF — malware analysis report

Static analysis result for SHA-256 92f342e6180cefa2…

MALICIOUS

PDF

34.4 KB Created: 2021-06-18 06:26:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 7067b085d88b78eda5304cc7868d8861 SHA-1: ccfca8b6fcb91858c026cd40512cd100a821f104 SHA-256: 92f342e6180cefa23023bfb00a2db00566d4c99777840d600f2c6cbc4b67ced7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and domains hosting further malicious PDFs, all related to game hacks and currency generators. The document body and extracted URLs indicate a lure for users seeking free in-game items, which is a common tactic for distributing malware or phishing content. No scripts were extracted, but the presence of malicious links and the ML classifier's high confidence suggest a high likelihood 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/apk-free-download-roblox-game-hack In PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/how-to-get-free-minecraft-coins_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/minecraft-free-demo_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-email-rewards_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-long-is-the-minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/err-face-roblox-free_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/my-minecraft-account-was-hacked_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-paste_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/minecraft-bedrock-free-download-pc_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-pick-a-side-hack_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-hack-software-download_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-roblox-pin-codes_GM431946152.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_off00002edb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EDB 22080 bytes
SHA-256: 16ba5b1dba907c2a89149b42816a3c8c864aaf2299fe74f1fadb457ae8eb4ad3
font_01_sfnt_off00005fe7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FE7 19500 bytes
SHA-256: 301cc309e097f6c31b91ed49103935817da124af49a18490871044a996c00ddb

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