Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0fe4072e863b661…

MALICIOUS

PDF

34.5 KB Created: 2021-07-03 14:45:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: afb877e4be4ee9cf9d2328b47a538d9b SHA-1: 6bef80807b77885a912bc2b47aab8ca715de8b8e SHA-256: d0fe4072e863b66140a4b21a0e6ad9150475d932f2b5adc53af2f8faa7cbf04e
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links to external websites, many of which are hosted on domains associated with link farms and malicious redirectors. The primary lure appears to be 'free generators' or 'hacks' for popular games, designed to trick users into visiting potentially harmful sites. The document body and embedded links suggest a social engineering tactic to drive traffic to these malicious destinations.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/835599320/tiktok-free-quality-game-hack In PDF document text
    • https://www.mpos-organs.com/uploads/files/files/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/pastebin-roblox-account-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/can-you-evolve-trade-pokemon-without-trading_GM1094591345.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/roblox-welcome-to-bloxburg-money-cheat-july-2021_GM431946152.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/roblox-jailbreak-inf-money-hack-youtube_GM431946152.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/minecraft-online-free-no-download_GM479516143.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/hack-lecteur-roblox_GM431946152.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/roblox-tv-free-robux_GM431946152.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/roblox-account-getting-hacked_GM431946152.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/free-robux-br-roblox_GM431946152.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/redeem-hack-roblox-2021-robux_GM431946152.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/how-to-get-clockwork-shades-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/free-robux-pc_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_off000031e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31E8 22284 bytes
SHA-256: 8dd60932180609153bcc69c9801cd4c30e002e16ff84239687acd1183ce30e3e
font_01_sfnt_off00006375.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6375 18524 bytes
SHA-256: 99e7fc799f6050ac523341aa7d9c5eba4959689518195ddbafb016cd5e4e2841