Malicious PDF — malware analysis report

Static analysis result for SHA-256 962ea07d41cf540e…

MALICIOUS

PDF

34.4 KB Created: 2021-06-18 22:10:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-12
MD5: e5125f86a107595255ebf0d5728903af SHA-1: caffcdd9348deead301c0dd35b37c996e3b92050 SHA-256: 962ea07d41cf540e37d062648ebfc227b48dade6a6df2d08ae1a94978db94e35
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as "free generators" or "game hacks" for popular games. The document body and embedded URLs strongly suggest a phishing lure to trick users into visiting malicious sites. No scripts were extracted, but the presence of malicious links and the ML classifier's high confidence indicate a high likelihood of malicious intent.

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/how-to-get-free-credits-on-breaking-point-roblox-game-hack In PDF document text
    • http://slim.sisminkada.net/repository/coin-master-hack-apk-android_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/robuxfree-con_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-free-spins-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/case-clicker-2-hack-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-roblox-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/robux-free-co_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-cheats-and-hacks_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/minecraft-apk-114-4_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-hack-mod-apk-2021-download_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/hack-my-game-xyz-coin-master_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/pubg-uc-or-pc_GM1330123889.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-minecraft-for-free-on-tablet_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/robux-hack_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/brdarski-free-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/cool-free-outfits-on-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-prisoner-life-speed-hack_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-promo-codes-for-robux_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_off00002fda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FDA 21820 bytes
SHA-256: 376c27f10588b295940da854f2df6135298b2660369c15b839b2336e9ed03fdb
font_01_sfnt_off00006003.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6003 19536 bytes
SHA-256: 58074157d81fb88235d197bbc2ace06cb9b5bba575f4cf80b7362d3224ee4c41

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