Malicious PDF — malware analysis report

Static analysis result for SHA-256 071f3accdd2e7df6…

MALICIOUS

PDF

43.0 KB Created: 2021-06-14 01:53:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 939fc9c8495336036c4c6dd19cfe7090 SHA-1: fa172b62f0ed28b201c3a717290282071768901d SHA-256: 071f3accdd2e7df6d708a475127f4137894c35017ddca439e519566b6b46bc66
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to known malicious infrastructure, disguised as game hacks. The primary lure directs users to 'http://netcdn.co/app/431946152/how-to-hack-to-get-nightblade-in-murderer-mystery-roblox-game-hack', which is flagged as a malicious redirector. The document body and embedded URLs reinforce this lure, aiming to trick users into clicking through to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.co/app/431946152/how-to-hack-to-get-nightblade-in-murderer-mystery-roblox-game-hack In PDF document text
    • http://pourvosvacances.com/images/coin-master-event-hack_GM406889139.pdfIn PDF document text
    • http://pourvosvacances.com/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/snow-shoveling-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/all-free-to-wear-clothes-in-roblox_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/change-your-birthday-to-this-date-for-free-robux_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/coinmaster_GM406889139.pdfIn PDF document text
    • http://pourvosvacances.com/images/how-to-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://pourvosvacances.com/images/minecraft-story-mode-free-download_GM479516143.pdfIn PDF document text
    • http://pourvosvacances.com/images/roblox-jailbreak-free-vip-server-link-2021_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/how-to-get-minecraft-for-free-on-ps4-2021_GM479516143.pdfIn PDF document text
    • http://pourvosvacances.com/images/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://pourvosvacances.com/images/hack-minecraft_GM479516143.pdfIn PDF document text
    • http://pourvosvacances.com/images/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/roblox-players-that-give-free-items_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/hack-roblox-fr_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/real-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://pourvosvacances.com/images/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://pourvosvacances.com/images/roblox-free-play-no-download_GM431946152.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_003_off0000484e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x484E 24700 bytes
SHA-256: 2cb2097b5523becc6e34f7d93a8b44e250e4159df2df8697f8b23fd5f619fa81
font_01_sfnt_off00008160.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8160 19712 bytes
SHA-256: b6a9e076a18a9ec486fb314a8306d5d143d3d65b7c27e405b404d9ad49cb780b

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