Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e3ec15a05ec5d15…

MALICIOUS

PDF

35.5 KB Created: 2021-07-05 19:30:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 571997fb14ffbbb16b377cae9013bd01 SHA-1: 70870a578a91c605eaec79b30e9edf39a2c5df31 SHA-256: 7e3ec15a05ec5d150a42d6394aee964b01dbbf9385a30bc418462e522736d70e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and sites offering game hacks and free currency, such as 'free-spin-coin-master-hack-2021-game-hack'. The document body and embedded links strongly suggest a lure to trick users into downloading further malicious content or visiting phishing sites. 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/406889139/free-spin-coin-master-hack-2021-game-hack In PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/how-to-generate-free-coin-master-spin_GM406889139.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/free-arsenal-hacks_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/freerobux-co_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/how-to-get-robux-easy_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/get-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/clothes-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/roblox-county-free_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/hack-robux-2021-fr_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/coin-master-hack-apk-latest-version-2021_GM406889139.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/free-robux-no-verifiation_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/minecraft-noob-vs-pro-vs-hacker_GM479516143.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/roblox-hack-client-2021-wrd-cbx_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/free-private-minecraft-server_GM479516143.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/free-scakado-remix-roblox-id_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000033dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33DD 22772 bytes
SHA-256: ee2d9d0db349eb1b4e8928ef787a29b6e6c4e4bac8dc6d07fa7e4a9d99b7a48a
font_01_sfnt_off000066df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66DF 18748 bytes
SHA-256: 09e9522e43d1493e395b46c6e396a2d39f5a619d28468af8eceb278664062f1f

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