Malicious PDF — malware analysis report

Static analysis result for SHA-256 5173478100186bbf…

MALICIOUS

PDF

48.6 KB Created: 2021-05-15 11:40:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 2069281cb284315729d1fa0b2c1503ee SHA-1: 38bf820136a000f6d21a89284f4e9b7b9c8e79f1 SHA-256: 5173478100186bbfcf88172b3174754cc29333f62863262a02ed0f09988f7149
102 Risk Score

Malware Insights

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

The PDF document contains multiple links to external websites that promise free game hacks and currency, such as Robux. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates this is a lure to redirect users to potentially malicious content. The presence of numerous related PDF files on the 'adventureglaciertreks.com' domain suggests a campaign distributing such lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/431946152/can-you-get-robux-for-free-game-hack PDF link annotation
    • https://adventureglaciertreks.com/userfiles/files/roblox-avatar-girl_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/script-executor-roblox-free_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/coin-master-free-spin-app-iphone_GM406889139.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/strucid-aimbot_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/free-roblox-girl-hair-not-a-model_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/try-minecraft-free_GM479516143.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/free-private-server-roblox_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/minecraft-redeem-code-free_GM479516143.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/minecraft-for-laptop-free_GM479516143.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/coinmaster-hack_GM406889139.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/best-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/minecraft-cheats-pc-2021_GM479516143.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/get-free-cards-in-coin-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
stream_003_off00004a6e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A6E 35736 bytes
SHA-256: 7194379cbe5963148af75500d02c241cd0631c68f0a464faa36fb5a0cadc8c2b
font_01_sfnt_off00009b63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B63 18508 bytes
SHA-256: c061b59ab901ec7c7e5d17bc5fec7ace191fd36e08e64edc0ca642be8bf86a0e

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