Malicious PDF — malware analysis report

Static analysis result for SHA-256 e843346914f37d5d…

MALICIOUS

PDF

50.2 KB Created: 2021-05-17 02:36:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e52c4162bd8c5657e108e37e163e42af SHA-1: f4241b6b88ba6c1d21d85f836011b079fc15d335 SHA-256: e843346914f37d5d69a83762f84453716784845081b823de604379ab6d2a6516
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains multiple links to known malicious redirectors and lures users with promises of free Robux and game hacks. The primary link, https://netcdn.xyz/app/431946152/free-robux-instantly-game-hack, is identified as a malicious redirector. The document body, though partially corrupted, contains text related to 'Free Robux Instantly' and the authoring application 'wkhtmltopdf', suggesting a social engineering pretext to drive traffic to malicious sites. No scripts were extracted, but the presence of multiple malicious links indicates a high likelihood of user redirection to potentially harmful content or further malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8594

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/free-robux-instantly-game-hack In PDF document text
    • http://asiasieja.pl/images/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/free-executors-for-roblox_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/free-robux-group-payouts_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/minecraft-ore-finder-mod_GM479516143.pdfIn PDF document text
    • http://asiasieja.pl/images/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/daily-coin-master-link_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-free-link-spin_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/hack-to-send-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/free-spins-coin-master-november-2021_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/legit-coin-master-hack-october-2021_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/httpswwwurcouponsdealcom202103coinmasterfreespinandcoinlinkshtml_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-free-spin-27_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-free-spins-april-2021_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/www-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/what-is-wurst_GM479516143.pdfIn PDF document text
    • https://www.nrzroblox.comIn 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004855.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4855 28520 bytes
SHA-256: 78ea4d1ef2d117bc0cf05bb89ee7e6650d657625994c10b232ecb7196ccf40be
font_01_sfnt_off0000896e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x896E 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off00009378.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9378 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_03_sfnt_off0000a089.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA089 18600 bytes
SHA-256: eeb00711cf2e5591db958639ea5d908a8ba1b5c4404aa75c69e8a5349c023cb9

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