Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5e8c419c361819f…

MALICIOUS

PDF

44.2 KB Created: 2021-05-14 13:49:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7d37208977f46ca965e3b705396f6f18 SHA-1: 2adafba7954588aa216aacf0238b8f888b7a0c5e SHA-256: c5e8c419c361819f71167ffa66046bf2a82374c4ef47ecb4c2328786afc0aec2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector domains, specifically advertising free game hacks and generators, which is a common lure for malicious content. The heuristic firings confirm the presence of malicious redirector links and a lure for game hacks. While no scripts were explicitly extracted, the document body contains embedded URLs that likely lead to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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.xyz/app/479516143/minecraft-xbox-one-code-free-game-hack In PDF document text
    • https://www.deg91.com/upload/files/free-roblox-girl-hair-not-a-model_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/claim-free-robux_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/gameoffice-net-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/roblox-money-hack_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/free-redeem-code-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://www.deg91.com/upload/files/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/coin-master-golden-card-hack_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/no-human-verification-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/free-minecraft-domain_GM479516143.pdfIn PDF document text
    • https://www.deg91.com/upload/files/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/card-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/how-to-get-free-shields-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/roblox-speed-hack_GM431946152.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_off00004bd9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BD9 27492 bytes
SHA-256: ea11aea77123c57397d7e056a9a0834b76c1dce75a02be49ba0e47d00b64ee8c
font_01_sfnt_off000089e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89E5 18480 bytes
SHA-256: 32547446bdc1c02af64d5cec1ea24df84aad3939df267a2968463dfca93ea3eb

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