Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e9446a3206af879…

MALICIOUS

PDF

34.5 KB Created: 2021-07-03 15:50:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c03e1f0f68d42eaa818cb319ae971b76 SHA-1: ec99a76c8edcb986445848fb39204133fc549fd6 SHA-256: 2e9446a3206af8791bbae2f3be160469bf344df611cc0f9906a89b1b65af3be4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirectors and potentially malicious domains, disguised as game hacks or free generators. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs and a download button lure suggests an attempt to trick the user into downloading further malware. No scripts were extracted, but the overall pattern points to a downloader or redirector used in phishing campaigns.

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/kachifpro-game-hack In PDF document text
    • http://daskrimti-jabar.web.id/library//repository/robux-fun-hack_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free4now-free-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/install-free-game-coin-master_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-coding-classes-free_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-get-free-stuff-on-roblox-android_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/hack-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/pokemon-go-free-gift-codes_GM1094591345.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/edit-avatar-roblox-free_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/game-cards-roblox-free_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/i-think-someone-hacked-into-my-roblox-account_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-admin-commands-hack-2021_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-free-spins-and-coins-haktuts_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/bloxy-site-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/smart-lodhi-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-generator-group_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
stream_002_off000031c1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31C1 23052 bytes
SHA-256: 6121547e2f90b72b9e531ccd82a899ed842b6022e5e800845e1c8086b109ec88
font_01_sfnt_off00006517.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6517 18072 bytes
SHA-256: 72a3da90a05afc5dc46f93167f9d09aeeb78081726754e710800ebd664932104

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