Malicious PDF — malware analysis report

Static analysis result for SHA-256 e249bb5209215bc2…

MALICIOUS

PDF

44.6 KB Created: 2021-06-09 03:15:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 576fe056cc76efdde7de3c632607ffa3 SHA-1: 66e53106d62fc08ac9a801cd280a081164cb701e SHA-256: e249bb5209215bc2fc5eb5b4f186979ed2529498e298ad110aed7f2e50065d0a
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier also flagged the document as malicious. The document body, though heavily corrupted, contains references to 'Roblox' and 'hack', suggesting a lure for game-related exploits or scams. The primary attack vector appears to be directing users to malicious URLs for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 3

  • 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.tw/app/431946152/roblox-it In PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/hack-day-z-2-roblox-2021_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/free-robux-hack-no-human-verification-2021-and-no-survey_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/cheat-engine-64-roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/roblox-updated-hack-com_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/roblox-groups-that-give-you-free-robux-every-day_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/how-to-get-real-robux-for-free_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/murder-mystorys-roblox-knife-hack_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/roblox-cb-hack_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/how-to-get-your-hacked-acc-back-roblox_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/how-to-set-skybox-roblox-hack_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/stella-roblox-hack-buy_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/speed-hack-for-every-game-in-roblox_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/roblox-fedora-free_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/how-to-teleport-in-free-draw-2-roblox_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/dragon-ball-ultimate-hack-roblox_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/how-to-hack-surf-leaderboard-roblox_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/roblox-speed-hack-youtube_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/how-do-u-see-if-u-r-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/roblox-koi-hack_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
stream_004_off00005151.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5151 25304 bytes
SHA-256: d991c826f2a9731ebbb39bf5a1e66b787fe11636db835cbb62f50bbfeaac8e63
font_01_sfnt_off00008bc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BC6 18236 bytes
SHA-256: 778bdcb4efbe5fcaa7506075948f21ccae9ce66ea10912f1b2148c36c5608b3d

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