Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce95f0d3559ae578…

MALICIOUS

PDF

49.8 KB Created: 2021-06-09 04:21:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 9dfdb8a50cdc1268991517b72bcd8f57 SHA-1: 4da660cc0a5eeb393dae9b5dc51094865353bbfa SHA-256: ce95f0d3559ae57858f890f803b204c9b6b14436215149c302686bb128121d05
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users to external websites, masquerading as game hacks and generators. The primary link directs to a known malicious redirector infrastructure. The document's structure and embedded links suggest an attempt to drive traffic to potentially malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.tw/app/431946152/roblox-bee-swarm-simulator-honey-hack-download-game-hack In PDF document text
    • http://perpus.i2s-learning.com//repository/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/guide--coin-master-free-tips_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/pokemon-go-free-event-box_GM1094591345.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/how-do-u-get-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-get-boombox-free-cheat_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-free-spins-link-blogspot-april-2021_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-roblox-hair-boy_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/haktuts-coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-mod-menu-hack-download_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
font_00_sfnt_off0000540d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x540D 26168 bytes
SHA-256: 48a0c32091774c62c72f2e82a15a72b7d3bac28b46522462e45d503f277830e8
font_01_sfnt_off00008f33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F33 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00009c45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C45 19492 bytes
SHA-256: 7dae0858779cdaba143f8655266fee4322f5db99bf63b8605de72e88290a5254

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