Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bea52c1dcc42190…

MALICIOUS

PDF

51.1 KB Created: 2021-05-14 13:38:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 5b9e50d2002e0b62cc91ae0687fa6198 SHA-1: ada5aa3a863cdacb37149bf974c1f185adf6e5a6 SHA-256: 9bea52c1dcc421904019577056b75927adb1d60dfcb338c398af735bff38fc6e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, including one identified as a malicious redirector, leading to sites offering 'free Robux' or game hacks. The document body and embedded URLs suggest a social engineering lure to trick users into visiting potentially harmful websites. No scripts were extracted, but the presence of malicious redirectors and the lure indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9348

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://el.man3jombang.com/__statics/gudangsoal/files/coin-master-coin-link_GM406889139.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/free-downloads-for-coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/how-to-send-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/coinmaster-spin-ml_GM406889139.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/how-to-get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/pasos-para-hackear-coins-master_GM406889139.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/roblox-cheat-codes_GM431946152.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/free-roebucks-com_GM431946152.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/claim-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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E08 25120 bytes
SHA-256: 3fd501190556251d6a501a06736591ef2b35c5f4ec0d22d2809d8cdff570c58a
font_01_sfnt_off00008821.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8821 8704 bytes
SHA-256: ddfd86c88a6b8304bc31eeb9f28c8110fac325cdacc87503bacf4ac741777490
font_02_sfnt_off0000a48c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA48C 18600 bytes
SHA-256: eeb00711cf2e5591db958639ea5d908a8ba1b5c4404aa75c69e8a5349c023cb9

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