Malicious PDF — malware analysis report

Static analysis result for SHA-256 8480395225a6b30f…

MALICIOUS

PDF

34.4 KB Created: 2021-07-09 19:12:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 7da13410b671717f7e77ba4612d30aa5 SHA-1: 9e6c8ebe8f7c428b59b501e617dd83c976c87a69 SHA-256: 8480395225a6b30fe852e268ba6dba4d48fa76c88a4011b5883d6aaf39db8372
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating it links to malicious redirector infrastructure, specifically promoting a 'game hack'. The embedded URL `http://netcdn.tw/app/406889139/fbchampion-game-hack` is flagged as malicious. Although no scripts were extracted, the document body and heuristics suggest a lure to download potentially unwanted or malicious content.

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/fbchampion-game-hack In PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/how-to-download-vermillion-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/roblox-hack-tool-download-2021-pc_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/free-roblox-gear_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/roblox-trade-hangout-hack_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/working-2021-roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/robux-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/robux-gratuit-hexium-hack_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/grab-points-login_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-bc_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-real_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/rthe-wild-west-roblox-when-is-going-to-be-free_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/hack-robux-on-console_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/roblox-com-free4mobile24-com-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/medieval-hood-of-mystery-free-in-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/roblox-noclip-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/free-roblox-accounts-generator_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-hack-youtube_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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_off00003199.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3199 22220 bytes
SHA-256: fba53352b6edbd4b377b0cd6606a2929ccd910a8d6bede360d6fa57965247968
font_01_sfnt_off00006314.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6314 18656 bytes
SHA-256: fb679c9250522cab0344be15c9898f12ed930a7de6dfe2591d59bad5f2ca43f7

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