Malicious PDF — malware analysis report

Static analysis result for SHA-256 e97df807626c1021…

MALICIOUS

PDF

53.9 KB Created: 2021-05-11 01:14:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 58014714e666601bff5445a767172284 SHA-1: ab51a71db6939fecde9c33ba52ff2fe54c4a398b SHA-256: e97df807626c1021abbea886bcb349afc4e76c9929b7d01a901f301a5c964330
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 0.8773

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/479516143/how-to-use-wurst-game-hack PDF link annotation
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/free-spins-coin-master-site-wwwquoracom_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/how-to-make-a-roblox-group-for-free_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/how-to-download-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/is-it-possible-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/pop-slots-free-vegas-casino-slots-machine-game-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000050b2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50B2 24996 bytes
SHA-256: d7a0a8ed357c13739758229aaf837e8331416834a23d71b4850ff77d75437920
font_01_sfnt_off00008959.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8959 7936 bytes
SHA-256: 218d53b68bdddb064f6fba4be822d5b3725ed1cef1a3b42796a8dd99c4a62f4e
font_02_sfnt_off0000a283.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA283 4232 bytes
SHA-256: ab6320ab342704d2c5943abfba82ed4837bf2da871c91621741fd4cfd15c6ed5
font_03_sfnt_off0000b110.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB110 18052 bytes
SHA-256: a68273e95d9ad8d33f951bd54b666654e65060786c21df7f799ba901f89a275f

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