Malicious PDF — malware analysis report

Static analysis result for SHA-256 2599e3e767de4543…

MALICIOUS

PDF

48.7 KB Created: 2021-06-03 22:21:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 8c712a3212aa9691f87a0f71c95f620e SHA-1: 22235d1ddd07d77530151f80557bb9fe4eea0cd3 SHA-256: 2599e3e767de4543134d26a175a30c0594e2954752d46aa825b7c1355fe6939e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic indicating it links to a 'free generator / game hack' lure, which is a common social engineering tactic. The document body, though heavily obfuscated, contains references to game hacks and URLs that reinforce this theme. While no scripts were explicitly extracted, the PDF format itself can embed JavaScript, and the presence of external URLs suggests a potential download or redirection to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.online/app/479516143/minecraft-bedrock-free-with-java-game-hack PDF link annotation
    • http://laboratorium.sman2metro.sch.id//repository/http-coin-master-hack-club_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/pop-slots-free-vegas-casino-slot-machine-game-coin-master_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/roblox-place-rewards_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-headless-head-roblox_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/coin-master-freebies_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/free-spin-coin-master-online_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-coin-master-coins-2021_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/coin-master-working-hack_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/coin-master-cards-free_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/what-is-coin-master_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-robux-link_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/how-to-use-tiktok-free_GM835599320.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/tiktok-free-book_GM835599320.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_004_off000053ee.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53EE 26000 bytes
SHA-256: 84e47065d7cc51cb1a06a475683aa5ad3ff0dd721f4a0defd768edd0e3f97dd9
font_01_sfnt_off00008f59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F59 3092 bytes
SHA-256: 1aa0e4457f2fdbd20c643bc065edafaa683fd9dc2930c01c4492bce0fd9a7f02
font_02_sfnt_off00009a05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A05 18912 bytes
SHA-256: 4030f6649d0ebdd9f19ba86bdfab3d907e637ec7756e67114778b3c35e301262

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