Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a5760f4b7d2abc…

MALICIOUS

PDF

42.4 KB Created: 2021-05-18 02:02:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: f5f7e76b32504c8be2f723d9837d3188 SHA-1: d015578341999be9166e84bf05cf43d5f7b5290f SHA-256: 18a5760f4b7d2abc5f0c3fe307bc5e1cf9b83d2b387a7f2993bdf2019c9d0efc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF document contains multiple embedded links that redirect to websites advertising "game hacks" and "free generators", such as Roblox hacks. These links are flagged as malicious redirectors. The document body also contains similar URLs, reinforcing the lure to click on potentially harmful content. The presence of a visual download button heuristic further supports the deceptive nature of the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/431946152/roblox-hack-ios-game-hack In PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/how-to-get-minecraft-bedrock-for-free-with-java_GM479516143.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/grab-points-login_GM431946152.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/coin-master-root-hack_GM406889139.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/mcpe-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/coin-master-how-to-get-free-pet-food_GM406889139.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/daily-coin-master_GM406889139.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/coin-master-new-link-free-spin_GM406889139.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/coin-master-card-collection-hack-2021_GM406889139.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/coin-master-hack-100-working_GM406889139.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/coin-master-online-hack-2021_GM406889139.pdfIn PDF document text
    • http://moshaver-computer.ir/all_files/ckfinder/userfiles/files/roblox-bloxburg-hack_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_003_off00004913.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4913 25812 bytes
SHA-256: 7c28f8d2da2da8031f93d70d05b39db8782741b4ff07839af7daadf5b46109ae
font_01_sfnt_off000083b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83B7 18184 bytes
SHA-256: f12c7157a0abee9a7103123c9d307fa47fe2494659220a603733cc764a4b7828

Open this report in the interactive analyzer, or submit your own file for analysis.