Malicious PDF — malware analysis report

Static analysis result for SHA-256 75020fe96f523987…

MALICIOUS

PDF

44.4 KB Created: 2021-05-13 10:44:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-24
MD5: b76569513a934986e24d1a9227fdf12f SHA-1: 60285f0cc591ada8fa040076f4caa5554306d2a5 SHA-256: 75020fe96f523987b669da684fac6afe46adbbd07e08b064ac5a7db7ff7ef1ed
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains multiple links to known malicious redirectors and game hack lures, indicating a phishing or scam attempt. The primary lure is a 'Coin Master 200 Spin Link' which directs users to a malicious URL. The document's content and embedded links strongly suggest an attempt to trick users into visiting malicious sites, likely for further malware delivery or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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 https://netcdn.xyz/app/406889139/coin-master-200-spin-link-game-hack In PDF document text
    • http://kmh.ddnsthailand.com/ckfinder/userfiles/files/coin-master-today_GM406889139.pdfIn PDF document text
    • http://kmh.ddnsthailand.com/ckfinder/userfiles/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://kmh.ddnsthailand.com/ckfinder/userfiles/files/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://kmh.ddnsthailand.com/ckfinder/userfiles/files/free-minecraft-addons_GM479516143.pdfIn PDF document text
    • http://kmh.ddnsthailand.com/ckfinder/userfiles/files/coin-master-hack-tool-for-pc_GM406889139.pdfIn PDF document text
    • http://kmh.ddnsthailand.com/ckfinder/userfiles/files/how-to-make-a-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
    • http://kmh.ddnsthailand.com/ckfinder/userfiles/files/coin-master-spin-hack-app_GM406889139.pdfIn PDF document text
    • http://kmh.ddnsthailand.com/ckfinder/userfiles/files/how-to-get-free-outfits-on-roblox_GM431946152.pdfIn PDF document text
    • http://kmh.ddnsthailand.com/ckfinder/userfiles/files/roblox-bloxburg-free-money_GM431946152.pdfIn PDF document text
    • http://kmh.ddnsthailand.com/ckfinder/userfiles/files/xray-hack_GM479516143.pdfIn PDF document text
    • http://kmh.ddnsthailand.com/ckfinder/userfiles/files/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://kmh.ddnsthailand.com/ckfinder/userfiles/files/free-coin-master-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://kmh.ddnsthailand.com/ckfinder/userfiles/files/coin-master-hack-pc_GM406889139.pdfIn PDF document text
    • http://kmh.ddnsthailand.com/ckfinder/userfiles/files/freerobuxhack-us_GM431946152.pdfIn PDF document text
    • http://kmh.ddnsthailand.com/ckfinder/userfiles/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://kmh.ddnsthailand.com/ckfinder/userfiles/files/minecraft-pe-apk_GM479516143.pdfIn PDF document text
    • http://kmh.ddnsthailand.com/ckfinder/userfiles/files/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://kmh.ddnsthailand.com/ckfinder/userfiles/files/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • http://kmh.ddnsthailand.com/ckfinder/userfiles/files/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://kmh.ddnsthailand.com/ckfinder/userfiles/files/coin-master-free-pet-snacks_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004892.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4892 24504 bytes
SHA-256: bfeb9e6e54cee80e265dd2aebccab2090eeddba5f3f91f89922337eeee6107a6
font_01_sfnt_off0000801f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x801F 3124 bytes
SHA-256: 9967c6221325a4ff3f7c4336922605f990450164c2eee2df708cc81823c6ec98
font_02_sfnt_off00008afe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AFE 18188 bytes
SHA-256: a35637ca0c1e73344ae8561ebd99d9fe87a1140cef0d47f6130cbc63d3e5cf49

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