Malicious PDF — malware analysis report

Static analysis result for SHA-256 cade089e5bc900ac…

MALICIOUS

PDF

34.4 KB Created: 2021-07-06 14:44:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: df245515c7e14d77430a1dbb5f409709 SHA-1: 5488180d17b3db3a40e9b886269a202bac0313d1 SHA-256: cade089e5bc900acaaac65488f3fcef129834d45421ffd4a967a2f90a069624d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game currency and hacks to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, likely serving as a gateway to further malicious content or downloads. The document's content and embedded URLs strongly suggest a phishing or scam attempt.

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/431946152/win-free-robux-game-hack In PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/claim-free-robux-button_GM431946152.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/the-underground-war-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/mcpe-master-free-coins_GM406889139.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/is-minecraft-free-on-pc_GM479516143.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/how-to-get-free-vip-in-roblox-fe2_GM431946152.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/free-minecraft-account-generator_GM479516143.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/claim-roblox_GM431946152.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/hack-coin-master-android-game_GM406889139.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/all-links-for-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/best-free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/free-roblox-veify-hat_GM431946152.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/free-roblox-game-card-get-your-code_GM431946152.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-with-winrar-pc_GM431946152.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/tests-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/free-robux-for-kids_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_off00003058.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3058 22340 bytes
SHA-256: 33ac4f1aee8eb40b9025a1581039f793784cfd86170c7490c8dd31543e825fef
font_01_sfnt_off00006187.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6187 19036 bytes
SHA-256: 866c875b7ada575fda7e0b2d16b4e3d455f2c28d19dc14b305271f934871ca62

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