Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e030efa3a10d17d…

MALICIOUS

PDF

42.7 KB Created: 2021-05-16 13:11:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 3c4fbf79f07de57be2634ce404f151ed SHA-1: 6b1edbcc6051a0d74d77728b7a2abcebeca6ba07 SHA-256: 3e030efa3a10d17dc63b73115dc6fd1c5dc4da3de465f5dc6be9db8842464c89
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including a known malicious redirector at 'https://netcdn.xyz/app/479516143/free-minecraft-alt-accounts-game-hack'. The document body and heuristics suggest a lure for game hacks or free items, which is a common tactic for phishing or malware distribution. The presence of a remote support tool lure further indicates a potential for social engineering to gain unauthorized access.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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/free-minecraft-alt-accounts-game-hack In PDF document text
    • http://gomelavto.by/images/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://gomelavto.by/images/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://gomelavto.by/images/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://gomelavto.by/images/2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://gomelavto.by/images/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://gomelavto.by/images/free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://gomelavto.by/images/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://gomelavto.by/images/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://gomelavto.by/images/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://gomelavto.by/images/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://gomelavto.by/images/how-to-get-java-minecraft-free_GM479516143.pdfIn PDF document text
    • http://gomelavto.by/images/redeem-roblox-card-free_GM431946152.pdfIn PDF document text
    • http://gomelavto.by/images/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://gomelavto.by/images/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://gomelavto.by/images/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • http://gomelavto.by/images/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://gomelavto.by/images/robloxfun-com-robux_GM431946152.pdfIn PDF document text
    • http://gomelavto.by/images/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://gomelavto.by/images/coin-master-hack-2021-download_GM406889139.pdfIn PDF document text
    • http://gomelavto.by/images/coin-master-hack-xyz-download_GM406889139.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_off00004c51.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C51 25544 bytes
SHA-256: b53537e0a6fc34a62b1b4cba1af40c1d7d6642c03483e8f6884580386fae2153
font_01_sfnt_off000085f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85F8 17924 bytes
SHA-256: ca2704b96dad28857c40796bc5f3f160f1252a4638d6e656e043cddf4ab01458

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