Malicious PDF — malware analysis report

Static analysis result for SHA-256 e21d7656a4799e3f…

MALICIOUS

PDF

40.1 KB Created: 2021-05-20 22:52:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 703358b79f131e57f8fa35726fea7617 SHA-1: 606c277543dcaa24525d411a9b328a04e9a9c76d SHA-256: e21d7656a4799e3ffa9557c798516dbf4998c164f2b7c994630c024eaf827825
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links, with a high-confidence heuristic identifying a lure for 'free generator / game hack'. The primary malicious URL identified is https://netcdn.xyz/app/835599320/tiktok-fans-free-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to lead the user to a malicious website, likely for initial access via spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8010

Heuristics 4

  • 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.
  • 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/835599320/tiktok-fans-free-game-hack PDF link annotation
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/roblox-sexually_GM431946152.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/get-free-robux-now_GM431946152.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/roblox-free-hair-girl_GM431946152.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/free-spin-link-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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003235.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3235 29000 bytes
SHA-256: 5c5a0f71a6b8a90462f060ee1c3a31d8d0cf7c0aaa6a8957a6cc357fa5fec85b
font_01_sfnt_off00007366.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7366 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00007d17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D17 17684 bytes
SHA-256: 22325babc2251f8239949cad6d45cc43a88f66264b3c8ea65c603fce63084c3f

Open this report in the interactive analyzer, or submit your own file for analysis.