Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c0cce18b83f42f0…

MALICIOUS

PDF

34.5 KB Created: 2021-07-07 20:50:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 8e509e06d6d932e6f55097c99d587c51 SHA-1: 7b0352a87f22367dd56664e17217cc0f8105895c SHA-256: 2c0cce18b83f42f09a1f66f10368679f5eee4b39f83027a794cf3ce6fb5365e1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The primary link, http://netcdn.tw/app/406889139/coin-master-heaven-free-daily-spins-game-hack, is identified as a malicious redirector. The document's content and embedded links strongly suggest a phishing or scam attempt to lure users to potentially harmful websites.

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.tw/app/406889139/coin-master-heaven-free-daily-spins-game-hack In PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/hack-roblox-dragon-ball-rage-anti-kick_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-meep-city-free-coins_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/5-000-free-robux_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/earn-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-super-power-training-simulator-free-vip-server-no-pvp_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-robux-net_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-blogspot_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-coin-master-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-robux-discount_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/dragon-keeper-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/como-ser-hacker-en-house-of-keys-en-roblox_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-be-naked-on-roblox-free_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-accounts-for-roblox-2021_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
stream_002_off00003002.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3002 22848 bytes
SHA-256: d060161af32a9b4abc6ebf3fd67e70e03cb64fbdf79a0344a13ac07602159401
font_01_sfnt_off000062f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F1 18712 bytes
SHA-256: 22f9f04dd90852229df91ee75d6fdd29e265584f21e97447f92a46988bc6ec20