Malicious PDF — malware analysis report

Static analysis result for SHA-256 d98d1c409774fe9f…

MALICIOUS

PDF

34.5 KB Created: 2021-06-22 08:19:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 8b137edb4421b70e04d7abc1c2576074 SHA-1: cb588672cdd7aa2d1d382985074b28eac1c73dad SHA-256: d98d1c409774fe9f587f97bc182690856edfad90746c84b50e5136b5fd9773bc
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that are designed as lures for game hacks and free spins, specifically targeting popular games like Coin Master and Roblox. The heuristic firings confirm that the document links to a 'free generator / game hack' redirector, and the ML classifier strongly indicates maliciousness. The primary attack pattern involves tricking the user into visiting a malicious URL, likely to deliver a second-stage payload or phish for credentials.

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.co/app/406889139/coin-master-free-spins-apple-game-hack PDF link annotation
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/is-roblox-hacked_GM431946152.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-april-12-2021_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/free-links-coin-master_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-link_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-unlimited-spin-hack-apk_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/minecraft-free-edition_GM479516143.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/free-robux-without-human-verification-or-email_GM431946152.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/hack-coin-master-apk-358_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-daily-link-game-mod_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/free-robux-reddit_GM431946152.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/is-minecraft-free-on-ps4_GM479516143.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/8bp-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/daily-free-coin-and-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/moon-active-games_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/free-roblox-website_GM431946152.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/rbx-com_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003197.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3197 22696 bytes
SHA-256: ab948755b3f603f058ce6866ff889ec32f17693668ae9166fc844e194bd603c3
font_01_sfnt_off00006427.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6427 18248 bytes
SHA-256: 22847223b7fa14b103dfc30bb8a4a3b5492eeee5b482c20ddafe1417e649d631

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