Malicious PDF — malware analysis report

Static analysis result for SHA-256 29eadbc702f6b807…

MALICIOUS

PDF

50.8 KB Created: 2021-06-04 02:41:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 94a53bc34570b8254443e129e04dd3fc SHA-1: 0e00a1e83ce7547b8c4f4b14a3c10b64043945ec SHA-256: 29eadbc702f6b807f518f76243c2f0fa5d135c30bb14b670190afb63b5a2d9e9
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 0.9744

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.online/app/431946152/free-robux-no-offers-game-hack PDF link annotation
    • http://perpustakaan.pa-jember.go.id/repository/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/roblox-comcom_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/robux-adder_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/hack-coin-master-app-ios_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/how-to-get-800-robux-for-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/coin-master-35-13-hack-download_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/roblox-accounts-for-sale-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/mcpe-master-hack-unlimited-coins-download_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/free-spin-card-exchange-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/coin-master-free-spins-and-coins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000054b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54B2 28240 bytes
SHA-256: 2acf5f2b24dc6b86d261af204252707ae263499dcc159d32002c785608a93787
font_01_sfnt_off00009780.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9780 4008 bytes
SHA-256: 982b414f0c1a2f334cbcfa74b37c63e373061dba1812816e371faa6e65399a16
font_02_sfnt_off0000a50f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA50F 18012 bytes
SHA-256: db6be32425767485114cb9000642ed63280f0807e0fe45793765b8e181fce2c0

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