Malicious PDF — malware analysis report

Static analysis result for SHA-256 58ccab684eb2cd13…

MALICIOUS

PDF

42.9 KB Created: 2021-06-03 04:58:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 69794ad2d96faeec25c49016b334bbd2 SHA-1: 62655b4487cace03c6c37ecdeddd8e74cdbc6304 SHA-256: 58ccab684eb2cd13c1101609e8a00bd77c9c35c0d5808b408a4c505bba18dbe3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, disguised as game hacks and generators. The primary lure is the URL https://netcdn.online/app/406889139/free-hacks-for-coin-master-game-hack, which is flagged as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to trick users into downloading further malicious content or visiting compromised sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

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.online/app/406889139/free-hacks-for-coin-master-game-hack In PDF document text
    • https://kitchenset-jogja.com/ckfinder/userfiles/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://kitchenset-jogja.com/ckfinder/userfiles/files/how-to-get-more-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://kitchenset-jogja.com/ckfinder/userfiles/files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • https://kitchenset-jogja.com/ckfinder/userfiles/files/coin-master-firebird-card-free_GM406889139.pdfIn PDF document text
    • https://kitchenset-jogja.com/ckfinder/userfiles/files/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • https://kitchenset-jogja.com/ckfinder/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://kitchenset-jogja.com/ckfinder/userfiles/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://kitchenset-jogja.com/ckfinder/userfiles/files/coin-master-free-spins-link-may-2021_GM406889139.pdfIn PDF document text
    • https://kitchenset-jogja.com/ckfinder/userfiles/files/how-to-download-minecraft-for-free-on-windows_GM479516143.pdfIn PDF document text
    • https://kitchenset-jogja.com/ckfinder/userfiles/files/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://kitchenset-jogja.com/ckfinder/userfiles/files/coin-master-golden-card-hack_GM406889139.pdfIn PDF document text
    • https://kitchenset-jogja.com/ckfinder/userfiles/files/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • https://kitchenset-jogja.com/ckfinder/userfiles/files/my-roblox-avatar_GM431946152.pdfIn PDF document text
    • https://kitchenset-jogja.com/ckfinder/userfiles/files/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://kitchenset-jogja.com/ckfinder/userfiles/files/gamesofficenet-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://kitchenset-jogja.com/ckfinder/userfiles/files/minecraft-apk-114_GM479516143.pdfIn PDF document text
    • https://kitchenset-jogja.com/ckfinder/userfiles/files/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • https://kitchenset-jogja.com/ckfinder/userfiles/files/free-robux-place_GM431946152.pdfIn PDF document text
    • https://kitchenset-jogja.com/ckfinder/userfiles/files/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • https://kitchenset-jogja.com/ckfinder/userfiles/files/how-to-get-free-roblox_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
stream_004_off00004ef3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EF3 24112 bytes
SHA-256: e68bfb067e42c901b26c944c73d3d05c5e790f5738f957525ed653fb20d2bc60
font_01_sfnt_off00008629.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8629 17880 bytes
SHA-256: 2beebd07a7bf3792acdee249f7a2a83ed44f2fe9f2bfb57386b991bf1122f076

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