Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c79803561a294d8…

MALICIOUS

PDF

36.6 KB Created: 2021-07-06 09:26:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 666c20c1d05dfa78d6a8fd2f93ceb052 SHA-1: c2c4a9b9c98c40baec194a22beee4fef6eaafb5b SHA-256: 7c79803561a294d874a2ac2002b319935cb6e849278c5a990172ea465bd9bebb
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/coin-master-hacked-apk-download-for-android-game-hack PDF link annotation
    • https://e-learning.mtspuicijantung.sch.id/__statics/gudangsoal/files/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://e-learning.mtspuicijantung.sch.id/__statics/gudangsoal/files/coin-master-free-spins-android_GM406889139.pdfIn PDF document text
    • https://e-learning.mtspuicijantung.sch.id/__statics/gudangsoal/files/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • https://e-learning.mtspuicijantung.sch.id/__statics/gudangsoal/files/coin-master-free-spins-today-39_GM406889139.pdfIn PDF document text
    • https://e-learning.mtspuicijantung.sch.id/__statics/gudangsoal/files/high-school-musical-breaking-free-roblox-id_GM431946152.pdfIn PDF document text
    • https://e-learning.mtspuicijantung.sch.id/__statics/gudangsoal/files/roblox-jailbreak-get-free-money_GM431946152.pdfIn PDF document text
    • https://e-learning.mtspuicijantung.sch.id/__statics/gudangsoal/files/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://e-learning.mtspuicijantung.sch.id/__statics/gudangsoal/files/free-roblox-acc_GM431946152.pdfIn PDF document text
    • https://e-learning.mtspuicijantung.sch.id/__statics/gudangsoal/files/roblox-jailbreak-free-cash_GM431946152.pdfIn PDF document text
    • https://e-learning.mtspuicijantung.sch.id/__statics/gudangsoal/files/grabpoints-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.mtspuicijantung.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-on-pc-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.mtspuicijantung.sch.id/__statics/gudangsoal/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.mtspuicijantung.sch.id/__statics/gudangsoal/files/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning.mtspuicijantung.sch.id/__statics/gudangsoal/files/fun-robux-hack_GM431946152.pdfIn PDF document text
    • https://e-learning.mtspuicijantung.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.mtspuicijantung.sch.id/__statics/gudangsoal/files/free-coins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • https://e-learning.mtspuicijantung.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • https://e-learning.mtspuicijantung.sch.id/__statics/gudangsoal/files/free-robux-obby-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.mtspuicijantung.sch.id/__statics/gudangsoal/files/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning.mtspuicijantung.sch.id/__statics/gudangsoal/files/roblox-free-builders-club-membership_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_off0000374e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x374E 22804 bytes
SHA-256: 1361bfe4352ae20defd97a895273228d07efb4891159711c100e224c8a23f02f
font_01_sfnt_off00006a9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A9B 18924 bytes
SHA-256: 447200ec88b08ea0d31090453e86a30ac1315ac98f7b8ffc9705520cf6481456

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