Malicious PDF — malware analysis report

Static analysis result for SHA-256 007003b3ba0bf2ae…

MALICIOUS

PDF

44.3 KB Created: 2021-06-08 12:34:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 9879ffa3ba7e7624c515b794fd61f373 SHA-1: 6ab9a96778278915ce439122444958ad4dfe1d44 SHA-256: 007003b3ba0bf2ae92cc640e3767b50ac9e3e78fe55c46613f034cf7521d2c05
220 Risk Score

Malware Insights

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

This PDF document employs a game hack lure to redirect users to malicious infrastructure. The document contains numerous links to external PDFs hosted on `shjbottle.com`, which likely serve as further lures or host malicious content. The ML classifier strongly indicates malicious intent, and the presence of multiple redirector links points to a coordinated campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.tw/app/431946152/how-to-hack-servers-in-roblox-game-hack In PDF document text
    • https://shjbottle.com/upload/files/robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/wwwcoin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/www-rbxhut-com_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/coin-master-free-spins-2021-app_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/minecraft-free-demo_GM479516143.pdfIn PDF document text
    • https://shjbottle.com/upload/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://shjbottle.com/upload/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
    • https://shjbottle.com/upload/files/free-robux-com_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/coin-master-heaven-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/earn-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/how-to-get-free-snacks-on-coin-master_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/tiktok-free-to-download_GM835599320.pdfIn PDF document text
    • https://shjbottle.com/upload/files/coin-master_GM406889139.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_off00005053.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5053 25208 bytes
SHA-256: d07663db56650bedf4dd330d424ce457f8fa88280a34174246ccfb8b4efebf86
font_01_sfnt_off000089b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89B0 18460 bytes
SHA-256: b0e11cfcda98e03dfd5c7198009901e61016738d84ecf53891434957cdbdf1a2

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