Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0f54f8e6610c6be…

MALICIOUS

PDF

45.5 KB Created: 2021-06-03 05:39:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 5cd0485425f17fb80535e85457f92d4a SHA-1: 203502c8fa08c618e4f2cb4bcbd93a53acd02249 SHA-256: e0f54f8e6610c6be4d82273b92fc9765e0d1c0bd8e1043cdf26fcc1b6e50db2e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to a known malicious infrastructure, specifically promoting 'free generator / game hack' lures. The presence of a visual download button and the ML classifier's high confidence score further indicate malicious intent. The document body itself contains the primary malicious URL, suggesting a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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 https://netcdn.online/app/431946152/how-to-get-robux-for-free-2021-game-hack In PDF document text
    • https://www.humanityera.com/uploaded_files/userfiles/files/coin-master-34-4-free-download_GM406889139.pdfIn PDF document text
    • https://www.humanityera.com/uploaded_files/userfiles/files/how-to-legally-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.humanityera.com/uploaded_files/userfiles/files/free-spin-appscoin-master_GM406889139.pdfIn PDF document text
    • https://www.humanityera.com/uploaded_files/userfiles/files/free-robux-co_GM431946152.pdfIn PDF document text
    • https://www.humanityera.com/uploaded_files/userfiles/files/free-roblox-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.humanityera.com/uploaded_files/userfiles/files/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • https://www.humanityera.com/uploaded_files/userfiles/files/can-you-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://www.humanityera.com/uploaded_files/userfiles/files/free-roblox-accounts-with-builders-club_GM431946152.pdfIn PDF document text
    • https://www.humanityera.com/uploaded_files/userfiles/files/coin-master-free-pet-snacks_GM406889139.pdfIn PDF document text
    • https://www.humanityera.com/uploaded_files/userfiles/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.humanityera.com/uploaded_files/userfiles/files/free-spin-codes-coin-master_GM406889139.pdfIn PDF document text
    • https://www.humanityera.com/uploaded_files/userfiles/files/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • https://www.humanityera.com/uploaded_files/userfiles/files/roblox-free-online-game_GM431946152.pdfIn PDF document text
    • https://www.humanityera.com/uploaded_files/userfiles/files/minecraft-pocket-edition-free-apk_GM479516143.pdfIn PDF document text
    • https://www.humanityera.com/uploaded_files/userfiles/files/www-free-robux-com_GM431946152.pdfIn PDF document text
    • https://www.humanityera.com/uploaded_files/userfiles/files/op-rewards-robux_GM431946152.pdfIn PDF document text
    • https://www.humanityera.com/uploaded_files/userfiles/files/coin-master-cards-free-cards_GM406889139.pdfIn PDF document text
    • https://www.humanityera.com/uploaded_files/userfiles/files/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://www.humanityera.com/uploaded_files/userfiles/files/free-coins-coin-master-link-today_GM406889139.pdfIn PDF document text
    • https://www.humanityera.com/uploaded_files/userfiles/files/coin-master-free-spin-app-apk_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_off0000540b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x540B 25148 bytes
SHA-256: 319f34ad5ccfb72678777da60ef81ec8d10b829726413406a3654970165fda55
font_01_sfnt_off00008e17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E17 18684 bytes
SHA-256: 65f445f0396e54760dd2a1edc1744209422bc48f29c35ea74a9bcb72e79f8b06

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