Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d4c5690fed6729f…

MALICIOUS

PDF

35.9 KB Created: 2021-07-04 12:51:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 95af106368aa0673cc17b5c37059cac0 SHA-1: c8839f88447215b702b2c156a7c39449452c072d SHA-256: 4d4c5690fed6729fe6e9c42e8d46307aaf1cf015011425b20e9eb4538b20a43e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a lure for free game currency and hacks, directing users to a known malicious redirector. The document body and heuristics indicate a phishing attempt to trick users into visiting malicious links, likely to download further malware or engage in credential harvesting. No scripts were extracted from this sample.

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/431946152/free-robux-com-roblox-game-hack In PDF document text
    • https://creationegyptco.com/userfiles/files/haktuts-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-hack-xyz-2021_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-minecraft-worlds_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/app-store-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/gold-card-coin-master-free_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-hack-free-spins_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/is-minecraft-free-on-ps4_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-ad_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/roblox-hack-and-cheats-for-exploit-free-download_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-free-chest-link_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/robuxy-com-generator_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-hack-app-link_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/roblox-got-talent-piano-hack_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-free-spins-and-coins-without-human-verification_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-minecraft-hacks_GM479516143.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_002_off00003200.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3200 23664 bytes
SHA-256: 974852b36f5cb9cccca42566a6b7d201899e93ef7a9db129715b8012176647c5
font_01_sfnt_off0000674f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x674F 19052 bytes
SHA-256: f1c402a5b139f7054ce39ccfb5800536152a5b826a5c5a7ec81e6f9b67a9d2f8

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