Malicious PDF — malware analysis report

Static analysis result for SHA-256 84bbd2737ba28765…

MALICIOUS

PDF

34.2 KB Created: 2021-07-04 19:12:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 6a61d09a4a41519339b0aa138495a209 SHA-1: aaf5965823e574c64f99abb25ff9f65fb9078734 SHA-256: 84bbd2737ba28765421922db6be651311c72ac355afaccd0f0e50220d0ae46d4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that lead to a known malicious redirector infrastructure, specifically advertising free game hacks and currency. The document body and heuristics indicate a lure for potentially unwanted software or further malicious downloads. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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.tw/app/479516143/free-minecraft-java-server-game-hack In PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/invisible-blue-hack-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/pastebin-hack-robux-by-hacks-de-juegos-apk_GM431946152.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/robux-generater-hack_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/haktuts-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/free-roblox-stuff-catalog_GM431946152.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/coin-master-hack-mod-apk-35-8_GM406889139.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/minecraft-xbox-free_GM479516143.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-using-inspect_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/fps-hacks-roblox-aimbot-not-pf-v20_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/can-someone-hack-roblox-and-steal-robux_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/free-roblox-codes-wiki_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/how-to-get-2021-robux-free_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_off000032a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32A4 22288 bytes
SHA-256: 43c7cf019b01a6d0163a3687cf5b2148c69514312d9ddd1f765ada8eee743e19
font_01_sfnt_off0000639d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x639D 18136 bytes
SHA-256: 79ce7aa8dec46b2fdcf29b8d0048edf05813e69cc12e123608cbd366e975b5c1

Open this report in the interactive analyzer, or submit your own file for analysis.