Malicious PDF — malware analysis report

Static analysis result for SHA-256 d44e8400a34515b1…

MALICIOUS

PDF

34.7 KB Created: 2021-07-04 17:49:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 243de73b2e9f1aadb3cab3012434f48c SHA-1: 53708cc6180dc69800d035a97bfccbc9ee06616c SHA-256: d44e8400a34515b17b9a3b072292e5dd8340c082d629267a67ba6dd8aec84051
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that are identified as malicious redirectors, specifically targeting users interested in game hacks and generators. The primary URL, http://netcdn.tw/app/431946152/roblox-name-changename-hack-game-hack, is a known malicious redirector. The document body and heuristics indicate a lure for potentially harmful content, likely leading to further exploitation or credential harvesting.

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/431946152/roblox-name-changename-hack-game-hack In PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/roblox-computer-hacking-game_GM431946152.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/hack-roblox-pc-prison-life_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/coin-master-hack-version-ios_GM406889139.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/free-alternatives-to-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/how-to-hack-a-private-server-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/free-roblox-robux-generator-code_GM431946152.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/hack-pour-tre-deban-sur-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/how-to-get-free-robux-no-human-verification-or-offers_GM431946152.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/carte-de-roblox-hack-gratuit_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/coin-master-free-coins-no-human-verification_GM406889139.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/roblox-survive-the-disasters-point-cheat_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/how-to-get-free-robux-easy-no-download-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/free-items-in-roblox-catalog-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/pokemon-go-free-promo-codes-2021_GM1094591345.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/roblox-prison-life-334-hack-download_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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
font_00_sfnt_off00003179.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3179 22376 bytes
SHA-256: 658072b8419b63967658c20dee2ed340e77aaa747e073f5e5755959b89df8058
font_01_sfnt_off00006342.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6342 18896 bytes
SHA-256: 38adf6b0bd93267f0cfdb187ce24d1e7b578be3f5580bd8049d0ec5c575c58de

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