Malicious PDF — malware analysis report

Static analysis result for SHA-256 f20921dc44cf719b…

MALICIOUS

PDF

34.1 KB Created: 2021-06-29 04:23:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: c9f2713ea9a116b565a81f36e59bd50e SHA-1: 169cba6a95aad0039378c4ed1b04079bd43cef23 SHA-256: f20921dc44cf719bb7e50e6ea08711c2340e33a0c4359170248c716f730d843c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains multiple links to known malicious redirectors and sites offering game hacks and currency. The document body explicitly mentions 'Roblox Money Hack Rocitizens' and includes numerous URLs that appear to be lures for obtaining in-game currency or cheats. The presence of these links strongly suggests a phishing or scamming attempt, likely leading to further malware downloads or credential harvesting.

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.co/app/431946152/roblox-money-hack-rocitizens-game-hack In PDF document text
    • http://slim.sisminkada.net/repository/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/promobilemafiacom-robux-cheats_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-coin-spin-daily-link-net_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-hack-a-roblox-account-2021-november_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-with-pastebin_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/robux-free-online_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/case-clicker-2-hack-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/what-to-do-when-you-are-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-minecraft-mods-for-pc_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/ast-free-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-2021-november-hacked_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/html-robux-free-30_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/full-inside-the-world-of-roblox-pdf-free-download_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/100-free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-hack-android-root_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-mods-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/rbx-hut_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_off00002d32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D32 22304 bytes
SHA-256: 1875305ea9e1673b22b629df336b877640d9186b0f9d6dbda9ae29a3f9f8997d
font_01_sfnt_off00005f07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F07 19336 bytes
SHA-256: 7252aea5458fb56ab6a726142657f6689bdaed7dbaff4e6200d7a8d69799283e

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