Malicious PDF — malware analysis report

Static analysis result for SHA-256 7de6adf5fc4dead9…

MALICIOUS

PDF

44.7 KB Created: 2021-06-03 23:05:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: f07f07f01cef8aafd08bf7279640e0b3 SHA-1: bd43ad8073ba7093b9b5cafbdd91fe994a403c40 SHA-256: 7de6adf5fc4dead9da3076576eaa5d458b8a20cdfa5fef8ac7e2635d5e76498e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to known malicious infrastructure, specifically advertising "game hacks" and "free spins". The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the embedded links and heuristic firings strongly suggest a phishing or scam attempt designed to lead the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/406889139/coin-master-free-spins-daily-link-updated-game-hack In PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/game-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/free-robux-picture_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/how-to-get-unlimited-xp-in-pokemon-go_GM1094591345.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/coin-master-2021_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/coin-master-free-spin-and-trading_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-coins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/what-is-coin-master_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/coin-master-attack-block-hack_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/coin-master-apk-hack-2021_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/freespinandcoin-blogspot_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/how-do-you-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/roblox-rules_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_004_off0000518b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x518B 25308 bytes
SHA-256: d5f7976e12391cda9dde887c2dc0ef481195804e62bc16917ac3501a5f641aa1
font_01_sfnt_off00008a73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A73 18836 bytes
SHA-256: 483be81730c5d51d00079e0b96a35004c6f4ace92d0df16fea0b4a10a7a49318

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