Malicious PDF — malware analysis report

Static analysis result for SHA-256 45359d79ae5e0e49…

MALICIOUS

PDF

49.8 KB Created: 2021-05-10 16:59:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 05ac115c68c80b0ad47de67c1f3e3913 SHA-1: 28f0789cc668eaa20688d7df6a3f6ea46822ca1c SHA-256: 45359d79ae5e0e491b572e332525372df7c1c26e53b2dfa583427050c25ff7df
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites offering game hacks and free items, identified as malicious redirectors. The document body explicitly mentions 'free Minecraft alts' and 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', reinforcing the lure. While no scripts were directly extracted, the PDF structure and heuristic firings indicate a malicious redirector designed to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9515

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.xyz/app/479516143/how-to-get-free-minecraft-alts-game-hack In PDF document text
    • http://laplazuelacafe.com/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://laplazuelacafe.com/images/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://laplazuelacafe.com/images/roblox-free-pants_GM431946152.pdfIn PDF document text
    • http://laplazuelacafe.com/images/free-robux-ad_GM431946152.pdfIn PDF document text
    • http://laplazuelacafe.com/images/coin-master-free-spins-links-app_GM406889139.pdfIn PDF document text
    • http://laplazuelacafe.com/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://laplazuelacafe.com/images/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://laplazuelacafe.com/images/coin-master-hack-programmers_GM406889139.pdfIn PDF document text
    • http://laplazuelacafe.com/images/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://laplazuelacafe.com/images/wurst-115_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000042bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42BF 24612 bytes
SHA-256: 5c2f76d625aa7a571a6ac2b2c36109f16bde81b2c4f50e15fb82b6298f77b086
font_01_sfnt_off00007996.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7996 8212 bytes
SHA-256: 00e5c7fb71d3ca337b0a20cbd62d0c170cc5eb9af64d1dfc2f62a4d501fbb91f
font_02_sfnt_off00009371.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9371 4232 bytes
SHA-256: ab6320ab342704d2c5943abfba82ed4837bf2da871c91621741fd4cfd15c6ed5
font_03_sfnt_off0000a1fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1FE 17948 bytes
SHA-256: 269658f7a7a555eab253e34ae52e3b7e8d1bd144f37ca57273b9b28d07bafc6a

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