Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2a80e8823fd78ea…

MALICIOUS

PDF

43.4 KB Created: 2021-05-13 18:49:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 08c959324bf095c39dcdb6e9689e1e08 SHA-1: 323b3eed9cdb105271dd388dfc4f3921de70465b SHA-256: c2a80e8823fd78eabb340f3c65af3bf1162f5f7f062de1cdd4e952c0f1fa7f56
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector infrastructure, specifically promoting 'game hacks' and 'free spins' to lure users. One prominent URL, 'https://netcdn.xyz/app/406889139/how-to-get-free-spins-on-coin-master-blogspot-game-hack', is identified as a malicious redirector. The document body and embedded links suggest a social engineering tactic to drive users to potentially malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/406889139/how-to-get-free-spins-on-coin-master-blogspot-game-hack In PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/grab-points-login_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/minecraft-education-free_GM479516143.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-100-robux_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/microsoft-rewards-roblox_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coinmasterhack-club_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-minecraft-thumbnails_GM479516143.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-hackcom-xyz_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-pc-download_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-android-device_GM479516143.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/minecraft-on-computer-free_GM479516143.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
stream_003_off00004ee7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EE7 24248 bytes
SHA-256: d7769526b08d000df1ab7f247bd432252d217f5087fa7fdd1f34ef05388c3192
font_01_sfnt_off00008690.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8690 18628 bytes
SHA-256: dffdff87eeabeaf08b6b0d7b886c4f721907d6ee2cd896e9e47cad489ce70e41

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