Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e4df2fb9f00b51d…

MALICIOUS

PDF

34.2 KB Created: 2021-07-06 19:53:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b6457a040200d97e7c08b132896a86b1 SHA-1: 0be5a51c4f129788817d4cac65f0a54ea5a30799 SHA-256: 3e4df2fb9f00b51d13daf9573ec50b05200ae1f551fb7ae574919847d1072731
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free currency to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which in turn serves other malicious PDF files. The document body contains multiple embedded URLs, all pointing to similar lure-based content, suggesting a campaign focused on driving traffic to these exploit sites.

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/how-to-hack-coin-master-with-game-guardian-game-hack In PDF document text
    • https://ibelive.tw/image/data/files/minecraft-texture-packs-free-download_GM479516143.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/mcpe-com_GM479516143.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-to-get-free-robux-100-works-2021_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/cheat-engine-16-roblox_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/view-cam-hack-roblox_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-robux-generator-the-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-spins-on-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-to-get-free-robux-ios-no-human-verification_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-vip-link-for-power-simulator-roblox_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-too-get-free-stuff-on-roblox-every-day_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-to-get-free-robux-no-countdown_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/roblox-arc-of-the-elements-phoenix-hack-artmoney_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-roblox-characters_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-to-get-to-village-3-in-coin-master_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-minecraft-skins-ps4_GM479516143.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_002_off00002e33.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2E33 22548 bytes
SHA-256: 12a59d512f4454dcad699ae64869afe0ac75741bd33fcd3c096aaa29bc641486
font_01_sfnt_off000060a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A6 19104 bytes
SHA-256: f7c66208803ea5843534cd084eb7496047edc4abae1aebcdf95f590eef7faad6

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