Malicious PDF — malware analysis report

Static analysis result for SHA-256 eedfd101f26abac7…

MALICIOUS

PDF

34.8 KB Created: 2021-07-04 14:10:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ecfc44bf8f4ba137830c1d37ab27d0fc SHA-1: afb98a10c97aa612d80db575d06fb09897b09d4f SHA-256: eedfd101f26abac7a50c8e1313c4904245b94044805270f8485d92bc11d595ce
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting game hacks and cheats. The primary link identified is http://netcdn.tw/app/406889139/coin-master-apk-hack-2021-ios-game-hack, which is flagged as a malicious redirector. The document body and heuristics indicate a lure for users seeking in-game advantages, likely leading to further malware or scams.

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-apk-hack-2021-ios-game-hack In PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/how-to-get-free-daily-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/can-you-get-roblox-on-nintendo-switch-for-free_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/united-gaming-net-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/how-to-get-free-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/games-that-can-be-hacked_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/roblox-catalog-free-stuff_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/flying-in-roblox-hack_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/can-you-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/bux-blast-free-robux_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/minecraft-116-1-download_GM479516143.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/robux-hack_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/coin-master-34-5-hack_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-spin-coin-master-online_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/coins-master_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
font_00_sfnt_off000032a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32A1 22308 bytes
SHA-256: dee2272c5bf8e61fa850a36320f0d9dfe03b0f8c268e576e7dd48746b3b29444
font_01_sfnt_off00006435.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6435 18580 bytes
SHA-256: 16d176bdf1b867fef3a97f0f45415bfc91080120e19e93be694a9c372efb77eb

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