Malicious PDF — malware analysis report

Static analysis result for SHA-256 d29a2e6e8e81832c…

MALICIOUS

PDF

34.3 KB Created: 2021-06-27 03:37:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 281e7cd70c1f0fc1d429083f8ee59a89 SHA-1: 6c3a2865a51ca48b3163cfbd1526d38cee3ef6e4 SHA-256: d29a2e6e8e81832cd528045fbc33fe5d70af7ced63429586197ea1393e2390f5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded URLs that lead to a known malicious redirector, which in turn likely serves game hack software. The document body explicitly mentions 'Hack Software For Roblox' and includes a call-to-action URL, indicating a lure to download potentially unwanted or malicious applications. The ML classifier also strongly flagged this PDF as malicious.

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/hack-software-for-roblox-game-hack In PDF document text
    • https://e-kbm.man2ska.sch.id/__statics/gudangsoal/files/free-robux-hack-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://e-kbm.man2ska.sch.id/__statics/gudangsoal/files/best-site-for-free-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://e-kbm.man2ska.sch.id/__statics/gudangsoal/files/roblox-cheating-story_GM431946152.pdfIn PDF document text
    • https://e-kbm.man2ska.sch.id/__statics/gudangsoal/files/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdfIn PDF document text
    • https://e-kbm.man2ska.sch.id/__statics/gudangsoal/files/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • https://e-kbm.man2ska.sch.id/__statics/gudangsoal/files/coin-master-daily-free-link_GM406889139.pdfIn PDF document text
    • https://e-kbm.man2ska.sch.id/__statics/gudangsoal/files/roblox-redeem_GM431946152.pdfIn PDF document text
    • https://e-kbm.man2ska.sch.id/__statics/gudangsoal/files/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://e-kbm.man2ska.sch.id/__statics/gudangsoal/files/free-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • https://e-kbm.man2ska.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://e-kbm.man2ska.sch.id/__statics/gudangsoal/files/coin-master-hack-ios-cydia_GM406889139.pdfIn PDF document text
    • https://e-kbm.man2ska.sch.id/__statics/gudangsoal/files/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://e-kbm.man2ska.sch.id/__statics/gudangsoal/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • https://e-kbm.man2ska.sch.id/__statics/gudangsoal/files/coin-master-hacks-for-iphone_GM406889139.pdfIn PDF document text
    • https://e-kbm.man2ska.sch.id/__statics/gudangsoal/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://e-kbm.man2ska.sch.id/__statics/gudangsoal/files/oneapprewards-free-robux_GM431946152.pdfIn PDF document text
    • https://e-kbm.man2ska.sch.id/__statics/gudangsoal/files/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • https://e-kbm.man2ska.sch.id/__statics/gudangsoal/files/hack-client_GM479516143.pdfIn PDF document text
    • https://e-kbm.man2ska.sch.id/__statics/gudangsoal/files/critical-strike-roblox-free-gamepass_GM431946152.pdfIn PDF document text
    • https://e-kbm.man2ska.sch.id/__statics/gudangsoal/files/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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_off00002e7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E7D 22508 bytes
SHA-256: 9959ea5903f997b964e348c2c88559c24aa1ad34c2c76962f1f7a3dcddf290ca
font_01_sfnt_off000060ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60BA 19088 bytes
SHA-256: 6cdad916af67f0c2d6863ea5850fb329106539e3726732b467f61f9116af431d

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