Malicious PDF — malware analysis report

Static analysis result for SHA-256 05446bfb1bf3b4d1…

MALICIOUS

PDF

34.4 KB Created: 2021-07-05 21:53:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 364ba5da7cc2c8d335b15766f254e4c1 SHA-1: ed7a5b2a20a18de5c4825d86911ab074a85a6a8e SHA-256: 05446bfb1bf3b4d1453d63c1d07972233461683d5e64b58421484313ef749c59
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'generators' for popular games. The primary malicious URL identified is http://netcdn.tw/app/406889139/coin-master-heaven-game-hack, which is flagged as a known malicious redirector. The document body and heuristics indicate a lure to download or access fraudulent content, likely leading to further malware or scams.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/coin-master-heaven-game-hack In PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-use-cheat-engine-on-roblox-2021-67_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/mod-skin-roblox-free_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-links-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-games-unblocked-free_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-money-hack_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-free-spin-2912-2021_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/minecraft-116-free-download_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-catalog-free_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-hackcom-robloxcom-ilum_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/haktuts-2021-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-catalog-free-pastebin_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/synapse-roblox-free_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-sexually_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-free-robux-20210_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/kill-hack-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/robux-game-com_GM431946152.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
font_00_sfnt_off00003059.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3059 23268 bytes
SHA-256: 90e18149b10f2caf8a6b0085c7cd7a4d832876640016384ca4a8b46ee2cd85cb
font_01_sfnt_off000064be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64BE 17948 bytes
SHA-256: 2b0b7ff6293efa0103c8c2231913429400a11b3f6a70388b902ae1f868ebf0a4

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