Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8c1ce0a4b3f0082…

MALICIOUS

PDF

44.4 KB Created: 2021-06-11 04:12:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6c1db3a7721055f11b9d610bf44c31c2 SHA-1: 163110d9005e119ea34efa5ac0a3f8d980495a32 SHA-256: f8c1ce0a4b3f00821a2d0721b12235fc3a723a2f7adf9f503558ff98c2a6620e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'free game hacks' and directs users to a malicious redirector URL. The presence of embedded links and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content or downloads. No scripts were extracted, but the document structure and embedded URLs strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/get-free-porsche-in-jailbreak-roblox-game-hack In PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/free-coin-master-s_GM406889139.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/tiktok-free-song_GM835599320.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/free-spins-for-coin-master-that-work_GM406889139.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/minecraft-bedrock-server-hosting-free_GM479516143.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/how-to-get-free-things-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/is-roblox-free-on-xbox_GM431946152.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/roblox-getting-hacked_GM431946152.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/level-coin_GM406889139.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/master-8-ball-pool-free-coins_GM406889139.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/roblox-free-robux-offers_GM431946152.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/roblox-how-to-hack-the-hitbox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/coin-master-free-spins-coins_GM406889139.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
stream_004_off000051b1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51B1 24532 bytes
SHA-256: 3c4946b89848777be0cee804620699e8abb86468f487ef6fbb757b76ea1d3fd1
font_01_sfnt_off0000891a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x891A 19056 bytes
SHA-256: ebc1ea990dd739eab1f1c1946228c7b601d1f8ada659c1adc24c05030cc7a1ae

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