Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e2c4d26fcd7a8d4…

MALICIOUS

PDF

34.0 KB Created: 2021-07-09 09:18:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 8b312a2afd3cf8ea8446bd10acfd1259 SHA-1: db0a4603135e804a7e2ff6d44a909abd84d716ef SHA-256: 5e2c4d26fcd7a8d433756bacab4852d676876f0e5a0ccdcb313725d0fc57f5c0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that lure users with promises of free Robux and game hacks. These links redirect to known malicious infrastructure, indicating a phishing or scam attempt. The ML classifier also flagged this PDF with high confidence, supporting the malicious verdict.

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/real-free-robux-codes-game-hack In PDF document text
    • http://e-learning.man2-oki.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-high-school-2_GM431946152.pdfIn PDF document text
    • http://e-learning.man2-oki.sch.id/__statics/gudangsoal/files/how-do-you-hack-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://e-learning.man2-oki.sch.id/__statics/gudangsoal/files/roblox-promo-codes-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://e-learning.man2-oki.sch.id/__statics/gudangsoal/files/roblox-lua-script-hacks-gui_GM431946152.pdfIn PDF document text
    • http://e-learning.man2-oki.sch.id/__statics/gudangsoal/files/roblox-black-hack_GM431946152.pdfIn PDF document text
    • http://e-learning.man2-oki.sch.id/__statics/gudangsoal/files/hack-tshirt-roblox_GM431946152.pdfIn PDF document text
    • http://e-learning.man2-oki.sch.id/__statics/gudangsoal/files/roblox-dominus-frigidus-free_GM431946152.pdfIn PDF document text
    • http://e-learning.man2-oki.sch.id/__statics/gudangsoal/files/how-to-get-items-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://e-learning.man2-oki.sch.id/__statics/gudangsoal/files/free-tiktok-followers-without-verification_GM835599320.pdfIn PDF document text
    • http://e-learning.man2-oki.sch.id/__statics/gudangsoal/files/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdfIn PDF document text
    • http://e-learning.man2-oki.sch.id/__statics/gudangsoal/files/hack-roblox-money-2021_GM431946152.pdfIn PDF document text
    • http://e-learning.man2-oki.sch.id/__statics/gudangsoal/files/roblox-robux-hack-using-cheat-engine_GM431946152.pdfIn PDF document text
    • http://e-learning.man2-oki.sch.id/__statics/gudangsoal/files/roblox-how-to-get-free-codes-group_GM431946152.pdfIn PDF document text
    • http://e-learning.man2-oki.sch.id/__statics/gudangsoal/files/legit-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://e-learning.man2-oki.sch.id/__statics/gudangsoal/files/free-hoodie-template-roblox_GM431946152.pdfIn PDF document text
    • http://e-learning.man2-oki.sch.id/__statics/gudangsoal/files/how-to-get-free-roblox-money-2021_GM431946152.pdfIn PDF document text
    • http://e-learning.man2-oki.sch.id/__statics/gudangsoal/files/free-t-shirts-on-roblox_GM431946152.pdfIn PDF document text
    • http://e-learning.man2-oki.sch.id/__statics/gudangsoal/files/roblox-hack-free-unlimited_GM431946152.pdfIn PDF document text
    • http://e-learning.man2-oki.sch.id/__statics/gudangsoal/files/jump-cheat-wearedevs-roblox_GM431946152.pdfIn PDF document text
    • http://e-learning.man2-oki.sch.id/__statics/gudangsoal/files/roblox-free-bag_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
font_00_sfnt_off00002e67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E67 22328 bytes
SHA-256: 3767e2d3b4c1284c80eb25543cf3501d902ec5a793ba7720b868f23f1034a9fc
font_01_sfnt_off00006029.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6029 18964 bytes
SHA-256: 9bf96aa8fc5477a53da022985f8b40c56c69568a39855eae0c096d595955e7d3

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