Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d0486c6ff5ac6b0…

MALICIOUS

PDF

34.4 KB Created: 2021-07-07 08:59:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 30baf1c66a2e31cdd6b89e4a8fc17ca9 SHA-1: fcb1dc036303be8f6447f3996b10d94b639a532a SHA-256: 2d0486c6ff5ac6b080f2dd01d8cb2c7bbdf836727314ef2eb20218d9cd0e67b7
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/village-4-coin-master-game-hack PDF link annotation
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/roblox-cheats-for-free-builders-club_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/coinmaster-blogspot_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/free-robux-2021-2021_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-no-fb-login_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/hacks-para-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/hacks-robux-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/pokemon-go-accounts-free-list-2021_GM1094591345.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/coin-master-links-to-get-free-spins_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/free-gift-cards-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/coin-master-free-spins-hacktman_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/roblox-svg-free_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/can-i-hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/who-to-get-free-robux_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
stream_002_off0000307f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x307F 22956 bytes
SHA-256: 8b89d9aad23d0c2734330000a1f493b91530f1297b5a634ac314338d331ef437
font_01_sfnt_off00006433.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6433 18104 bytes
SHA-256: 4e3e26e318f000d1743168d79ceffe3874b2a3aef5316a31623a9354875cbc98

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