Malicious PDF — malware analysis report

Static analysis result for SHA-256 fac11cc42db79182…

MALICIOUS

PDF

45.7 KB Created: 2021-05-19 19:45:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2089b5af1477310d54cf3eb6ae248ad5 SHA-1: 1f8c3361de0c0c103687f02450abaaff8a41347d SHA-256: fac11cc42db79182a4697872362c404250c3062c5061743c3ea382ffa3ad79a6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, specifically targeting users with lures related to 'game hacks' and 'free generators'. The presence of a visual download button and the overall structure suggest a phishing or scam attempt designed to trick users into visiting these malicious sites. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/431946152/https-rbx-place-rewards-game-hack In PDF document text
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/free-roblox-premium_GM431946152.pdfIn PDF document text
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/get-free-spins-link-in-coin-master_GM406889139.pdfIn PDF document text
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/coin-master-cards-free_GM406889139.pdfIn PDF document text
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/roblox-executor-free_GM431946152.pdfIn PDF document text
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/how-to-get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/coin-master-hack-1021_GM406889139.pdfIn PDF document text
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/robux-com-free_GM431946152.pdfIn PDF document text
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/how-to-get-2021-robux-for-free_GM431946152.pdfIn PDF document text
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/app-store-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/roblox-survey-for-robux_GM431946152.pdfIn PDF document text
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/legitimate-coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/robux-without-verification_GM431946152.pdfIn PDF document text
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/free-robux-hack-no-human-verification_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a4c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A4C 25232 bytes
SHA-256: 19044fe3d71c8c8ce5f991c3e3fd6155bc7dc3b5df21f442c9048650a6accc99
font_01_sfnt_off000084c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84C3 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off00008ed3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ED3 18640 bytes
SHA-256: adbb92b042532d7f987745dbbe30e528a9aa5ccea6c943b93cd0d8aa572e92fd

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