Malicious PDF — malware analysis report

Static analysis result for SHA-256 20930173b72fa459…

MALICIOUS

PDF

44.1 KB Created: 2021-05-17 21:00:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 9c0fb5882dd050a70ac88a81d5eb35e1 SHA-1: d392961c6e7675d280385ada4d758c370bc33e7b SHA-256: 20930173b72fa459a23e45e23dda3c21f1e4dee5b5f60c30875b6163df60bc21
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous links designed to redirect users to external websites, masquerading as game hacks or generators. The heuristic firings indicate this PDF is part of a link farm, likely intended to drive traffic to malicious sites or host further malicious content. While no scripts were directly extracted, the PDF structure and embedded links suggest a potential for exploitation or redirection to malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 5

  • 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.
  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/479516143/minecraft-building-hacks-game-hack PDF link annotation
    • http://amtabor2.at/images/wurst-commands_GM479516143.pdfIn PDF document text
    • http://amtabor2.at/images/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://amtabor2.at/images/how-do-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://amtabor2.at/images/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://amtabor2.at/images/free-daily-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://amtabor2.at/images/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
    • http://amtabor2.at/images/what-is-a-minecraft-client_GM479516143.pdfIn PDF document text
    • http://amtabor2.at/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://amtabor2.at/images/grab-points-login_GM431946152.pdfIn PDF document text
    • http://amtabor2.at/images/2021-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://amtabor2.at/images/free-apk-mods-coin-master_GM406889139.pdfIn PDF document text
    • http://amtabor2.at/images/how-to-get-free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://amtabor2.at/images/how-to-get-a-free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://amtabor2.at/images/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • http://amtabor2.at/images/coin-master-free-spins-11-01-2021_GM406889139.pdfIn PDF document text
    • http://amtabor2.at/images/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://amtabor2.at/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://amtabor2.at/images/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://amtabor2.at/images/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://amtabor2.at/images/free-robux-safe_GM431946152.pdfIn PDF document text
    • https://discord.ggIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004874.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4874 31384 bytes
SHA-256: 7ebda286427303eec6739f37e75865d147ec17cbd528200c519e5714116070d6
font_01_sfnt_off00008924.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8924 18628 bytes
SHA-256: 03be4b6b10a4c687c6c89c16a3bf013511456428a76c01e3ee63370f4522cf94

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