Malicious PDF — malware analysis report

Static analysis result for SHA-256 c914b6ce157e3b13…

MALICIOUS

PDF

41.7 KB Created: 2021-05-19 05:33:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: dc7df265870f77de1b45d34a29a008ea SHA-1: 695e803e4a2b7badc0b6bb09fbd35f692d64a506 SHA-256: c914b6ce157e3b1321840f3535726989604badeac99b884ddc16513d75b2073b
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 0.9971

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-free-zoom-game-hack PDF link annotation
    • http://himalayandiscoverytrek.com/userfiles/files/how-to-hack-coin-master-with-game-guardian_GM406889139.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/how-to-get-free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/coin-master-generator-free_GM406889139.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/when-was-minecraft-free_GM479516143.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/hacks-para-coin-master_GM406889139.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/free-robux-real_GM431946152.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/coin-master-hack-online-generator_GM406889139.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/oprewards-com-robux_GM431946152.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/hack-coin-master-using-pc_GM406889139.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/hack-coin-master-android_GM406889139.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/master-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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
stream_003_off00004664.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4664 26428 bytes
SHA-256: d467578cda919e3bd25dc820a6727f428420902af9c010b4cf911f128fb8130e
font_01_sfnt_off00008234.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8234 17808 bytes
SHA-256: c096eeb42419d31ddb0102b46694a67465aca2539ef2325679460b18b94abbed

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