Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a7189557e335742…

MALICIOUS

PDF

34.4 KB Created: 2021-07-01 08:04:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: d85a3e4dd95e86ff1631dd7c27197c25 SHA-1: 7f6cb4bb52a60f861d0130f1063fce512d444a30 SHA-256: 6a7189557e335742563270438e78c75918644119349d46a83fcb5f5ac98eb0fd
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game items and hacks to entice users. It contains a link farm of 28 SEO-optimized PDFs, many of which are hosted on kbm.maalmaarif.com, suggesting a coordinated effort to drive traffic to potentially malicious content. The primary lure directs to http://netcdn.co/app/479516143/is-minecraft-free-on-xbox-game-hack, which likely leads to further malicious content or malware. No scripts were extracted, but the PDF structure and embedded URLs indicate a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/479516143/is-minecraft-free-on-xbox-game-hack PDF link annotation
    • http://kbm.maalmaarif.com/__statics/gudangsoal/files/free-robux-app_GM431946152.pdfIn PDF document text
    • http://kbm.maalmaarif.com/__statics/gudangsoal/files/how-to-get-free-admin-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://kbm.maalmaarif.com/__statics/gudangsoal/files/cheat-engine-lua-scripts-roblox_GM431946152.pdfIn PDF document text
    • http://kbm.maalmaarif.com/__statics/gudangsoal/files/roblox-vehicul-simulator-hacke_GM431946152.pdfIn PDF document text
    • http://kbm.maalmaarif.com/__statics/gudangsoal/files/free-robux-by-robuxian_GM431946152.pdfIn PDF document text
    • http://kbm.maalmaarif.com/__statics/gudangsoal/files/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • http://kbm.maalmaarif.com/__statics/gudangsoal/files/fun-roblox-games-to-cheat-on_GM431946152.pdfIn PDF document text
    • http://kbm.maalmaarif.com/__statics/gudangsoal/files/roblox-games-where-you-can-get-free-stuff_GM431946152.pdfIn PDF document text
    • http://kbm.maalmaarif.com/__statics/gudangsoal/files/oh-yeah-yeah-shirt-on-roblox-free_GM431946152.pdfIn PDF document text
    • http://kbm.maalmaarif.com/__statics/gudangsoal/files/how-to-get-free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • http://kbm.maalmaarif.com/__statics/gudangsoal/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://kbm.maalmaarif.com/__statics/gudangsoal/files/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • http://kbm.maalmaarif.com/__statics/gudangsoal/files/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://kbm.maalmaarif.com/__statics/gudangsoal/files/free-tiktok-followers-generator_GM835599320.pdfIn PDF document text
    • http://kbm.maalmaarif.com/__statics/gudangsoal/files/pastebin-robux-hack_GM431946152.pdfIn PDF document text
    • http://kbm.maalmaarif.com/__statics/gudangsoal/files/minecraft-bedrock-free-with-java_GM479516143.pdfIn PDF document text
    • http://kbm.maalmaarif.com/__statics/gudangsoal/files/bc-accounts-roblox-free_GM431946152.pdfIn PDF document text
    • http://kbm.maalmaarif.com/__statics/gudangsoal/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://kbm.maalmaarif.com/__statics/gudangsoal/files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://kbm.maalmaarif.com/__statics/gudangsoal/files/how-to-get-free-robux_GM431946152.pdfIn 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
font_00_sfnt_off00002f80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F80 22996 bytes
SHA-256: d6714d2ff27a98c3d0fc6fedfa88f453449e586413aeb7c4e6f45c734b111fb0
font_01_sfnt_off000062b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B4 18596 bytes
SHA-256: 987f99d7e2443cf381540eae1143ad62299bf58b05908f5564068197b2bc8841

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