Malicious PDF — malware analysis report

Static analysis result for SHA-256 700fd275cab3c33c…

MALICIOUS

PDF

43.3 KB Created: 2021-05-19 07:54:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: c4d5cebc5b9595df65b8932441364a6c SHA-1: 553dc3021754987df363787e48c384899b72e644 SHA-256: 700fd275cab3c33c5e19d11026c78afc36892cd2fd1d0a9fbc6a973f51232e50
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and generators. The primary link directs to 'https://netcdn.xyz/app/479516143/minecraft-story-mode-free-game-hack', which is flagged as a malicious redirector. The document body, though partially corrupted, contains references to game hacks and the malicious URL, reinforcing the lure. The presence of a visual download button further supports the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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.xyz/app/479516143/minecraft-story-mode-free-game-hack In PDF document text
    • http://acktivities.com/images/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://acktivities.com/images/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://acktivities.com/images/roblox-skin-free_GM431946152.pdfIn PDF document text
    • http://acktivities.com/images/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://acktivities.com/images/roblox-free-bundles_GM431946152.pdfIn PDF document text
    • http://acktivities.com/images/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://acktivities.com/images/coin-master-free-spins-link-blogspot-april-2021_GM406889139.pdfIn PDF document text
    • http://acktivities.com/images/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://acktivities.com/images/easypoints-gg-roblox_GM431946152.pdfIn PDF document text
    • http://acktivities.com/images/free-minecraft-skins-xbox-one_GM479516143.pdfIn PDF document text
    • http://acktivities.com/images/rbx-roblox-robux_GM431946152.pdfIn PDF document text
    • http://acktivities.com/images/how-do-you-get-roblox-money_GM431946152.pdfIn PDF document text
    • http://acktivities.com/images/win-free-robux_GM431946152.pdfIn PDF document text
    • http://acktivities.com/images/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://acktivities.com/images/coin-master-apk_GM406889139.pdfIn PDF document text
    • http://acktivities.com/images/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://acktivities.com/images/roblox-free-items_GM431946152.pdfIn PDF document text
    • http://acktivities.com/images/coin-master-mod-version-free-download_GM406889139.pdfIn PDF document text
    • http://acktivities.com/images/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • http://acktivities.com/images/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • https://education.minecraftIn 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_003_off00004ab2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AB2 27516 bytes
SHA-256: 4415078ca3ab3fde6da9cdb5ef5d36625769b0f12e37a55573c3fb328ad9f7f9
font_01_sfnt_off000087b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87B6 18064 bytes
SHA-256: 5e5fb910f64b2149404149cb3256d61ed755ed43a7017f23b86fa73a2f1502c2