Malicious PDF — malware analysis report

Static analysis result for SHA-256 44456c309693379d…

MALICIOUS

PDF

34.9 KB Created: 2021-06-17 20:09:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: d9f9bd2e3d4a1def0bc3ffacf1b8571c SHA-1: 8a70ab9b717518ebf338b2cf4f7289bffe7dd1aa SHA-256: 44456c309693379de952b54ceac007253ac515b7ed6b64e4c15bdc5e987d9f8c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a high-risk heuristic firing for a game hack lure, directing users to a suspicious URL. The document body and embedded URLs reinforce this theme, suggesting a phishing attempt to trick users into downloading potentially malicious content. The ML classifier also strongly indicated maliciousness.

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.co/app/431946152/roblox-cheat-engine-windows-10-game-hack PDF link annotation
    • https://perpustakaan.smp1madiun.sch.id/repository/can-i-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/free-minecraft-printables_GM479516143.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/free-robux-hack-pc-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/change-org-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/btools-roblox-hack_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/hack-roblox-prison-miner_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/hcbb-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/minecraft-games-to-play-for-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/roblox-hacks-intitle-indexof_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/roblox-accessories-for-free_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/cheat-roblox-mod-de-passe_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/roblox-singing-hack_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/free-rich-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/shirt-roblox-free-shipping_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/hacks-for-the-plaza-in-roblox-to-get-money_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/download-hacks-for-roblox-booga-booga_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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
font_00_sfnt_off00002fca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FCA 22300 bytes
SHA-256: 304808e49fa6759e653c4346a1d9ba0ccb2926f84c246ba7ad5bcbd5c1583c01
font_01_sfnt_off000061a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61A5 19504 bytes
SHA-256: 8859aea24fc6957fcb8818050ad5ecd83f1cb4ddd6484da7b330ad799d7194ca

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