Malicious PDF — malware analysis report

Static analysis result for SHA-256 94818bf1769b4866…

MALICIOUS

PDF

34.6 KB Created: 2021-07-04 12:37:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 09fc18b1bed35c00e8e4c32d3375c967 SHA-1: 65f7bf8f7d8170ec00fd85ad9aa220b72470659c SHA-256: 94818bf1769b4866bb8074f8918dcabf016f80ab418a9a96b0a5b10d0496b31d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a redirector hosted at 'netcdn.tw', which is flagged as malicious infrastructure. The document body and embedded links suggest a lure for game hacks and cheats, aiming to trick users into visiting malicious sites. The presence of multiple PDF files on 'valenciamaids.com' further indicates a campaign distributing malicious documents.

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.tw/app/406889139/coin-master-game-hack-kaise-kare-game-hack In PDF document text
    • http://www.valenciamaids.com/userfiles/files/best-free-hacked-client_GM479516143.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/how-to-hack-roblox-with-lucky-patcher-2021_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/cheat-tool-jailbreak-pc-roblox_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/free-appsfor-coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/minecraft-pe-apk-download_GM479516143.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/free-face-roblox_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/free-roblox-card-codes_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/easy-points-gg_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/free-minecraft-account-and-password_GM479516143.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/roblox-free-robux-apk_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/noob-outfit-roblox-free_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/minecraft-free-apk-download-016-0_GM479516143.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/h0nda-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/give-me-robux-now_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/pubg-2021-uc_GM1330123889.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/roblox-cheat_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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_002_off00003086.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3086 23100 bytes
SHA-256: 63f64471bf29f50f839aaeae3a459bd43e527523a338b62c78e6bc262e23f878
font_01_sfnt_off00006480.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6480 18264 bytes
SHA-256: a8389fbf181df9705b3255eb4c4696b43f8c72abea2faab980217b88f505b556

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