Malicious PDF — malware analysis report

Static analysis result for SHA-256 44a58d041ec8fdb3…

MALICIOUS

PDF

34.0 KB Created: 2021-06-26 10:08:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 879dbe240742bc806d4d100250634126 SHA-1: 69f68c293b0d6890f8d42f5749489cb91f991d49 SHA-256: 44a58d041ec8fdb3fefe9d2a9e6773f9a04caab20d368b262682a775ea101143
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure related to game hacks and free in-game currency to entice users. It contains multiple embedded URLs, including one pointing to a known malicious redirector infrastructure at http://netcdn.co/app/431946152/images-of-jhon-do-hacker-roblox-game-hack. The document's structure and embedded links suggest it is designed to redirect users to potentially malicious websites, likely for phishing or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/images-of-jhon-do-hacker-roblox-game-hack In PDF document text
    • https://learning.man6-jkt.sch.id/__statics/gudangsoal/files/free-limiteds-roblox_GM431946152.pdfIn PDF document text
    • https://learning.man6-jkt.sch.id/__statics/gudangsoal/files/free-tiktok-followers-generator_GM835599320.pdfIn PDF document text
    • https://learning.man6-jkt.sch.id/__statics/gudangsoal/files/roblox-books-online-free_GM431946152.pdfIn PDF document text
    • https://learning.man6-jkt.sch.id/__statics/gudangsoal/files/free-coins-for-flip-master_GM406889139.pdfIn PDF document text
    • https://learning.man6-jkt.sch.id/__statics/gudangsoal/files/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • https://learning.man6-jkt.sch.id/__statics/gudangsoal/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://learning.man6-jkt.sch.id/__statics/gudangsoal/files/roblox-robux-hack-club_GM431946152.pdfIn PDF document text
    • https://learning.man6-jkt.sch.id/__statics/gudangsoal/files/cheats-for-dayz-roblox_GM431946152.pdfIn PDF document text
    • https://learning.man6-jkt.sch.id/__statics/gudangsoal/files/roblox-earn-robux_GM431946152.pdfIn PDF document text
    • https://learning.man6-jkt.sch.id/__statics/gudangsoal/files/get-free-robux_GM431946152.pdfIn PDF document text
    • https://learning.man6-jkt.sch.id/__statics/gudangsoal/files/rbxoffer-com-free-robux_GM431946152.pdfIn PDF document text
    • https://learning.man6-jkt.sch.id/__statics/gudangsoal/files/how-to-hack-someone-easy-on-roblox_GM431946152.pdfIn PDF document text
    • https://learning.man6-jkt.sch.id/__statics/gudangsoal/files/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://learning.man6-jkt.sch.id/__statics/gudangsoal/files/hack-injector-roblox-2021_GM431946152.pdfIn PDF document text
    • https://learning.man6-jkt.sch.id/__statics/gudangsoal/files/free-robux-no-download_GM431946152.pdfIn PDF document text
    • https://learning.man6-jkt.sch.id/__statics/gudangsoal/files/promo-code-roblox-free_GM431946152.pdfIn PDF document text
    • https://learning.man6-jkt.sch.id/__statics/gudangsoal/files/minecraft-ios-mods_GM479516143.pdfIn PDF document text
    • https://learning.man6-jkt.sch.id/__statics/gudangsoal/files/how-to-get-robux-back-if-i-was-hacked-2021_GM431946152.pdfIn PDF document text
    • https://learning.man6-jkt.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
    • https://learning.man6-jkt.sch.id/__statics/gudangsoal/files/roblox-games-that-give-you-free-robux_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F57 21708 bytes
SHA-256: ffd118cee0e74da511113941c19cc4b019dd883afab7f070d5023c037d60bbe1
font_01_sfnt_off00005eb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB9 19416 bytes
SHA-256: df470bbd758210b7b439f7a4a7ac0ab794d8f035e48eb9cb413a7a68c3691773

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