Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f6b33d6e0545744…

MALICIOUS

PDF

40.0 KB Created: 2021-05-14 08:17:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e55f8e8c15fd387f11b3cb6f824d4d5f SHA-1: b34146881944d98c8783c7f03b147700a05aead8 SHA-256: 6f6b33d6e0545744cda4707771edd2338e11eea8966e54b47177b5dde135e86d
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on what appear to be game hack or generator sites. The primary link redirects to known malicious infrastructure, indicating a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering attack, likely initiated via spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 3

  • 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.
  • 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/406889139/coin-master-free-spin-group-game-hack In PDF document text
    • https://malungtreks.com/userfiles/files/minecraft-pe-apk-download-free-015-0_GM479516143.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/coin-master-link-app_GM406889139.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/coin-master-online-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/robloxbux-us-generator_GM431946152.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/how-to-get-free-spins-on-coin-master-2021-links_GM406889139.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/coin-master-pc-game-free-download_GM406889139.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/free-spin-coin-master-apk_GM406889139.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/free-25-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/how-do-i-earn-robux_GM431946152.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/coin-master-download_GM406889139.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/today-free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/get-free-roblox_GM431946152.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • https://malungtreks.com/userfiles/files/coin-master-online-hack-generator_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
stream_003_off00004714.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4714 24596 bytes
SHA-256: 9ef8fe94c05420aeb93dd070bba46f3264b79ed4bfa0bb6a9faeb87cc9ef2f83
font_01_sfnt_off00007ec2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC2 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676