Malicious PDF — malware analysis report

Static analysis result for SHA-256 95348d697785e035…

MALICIOUS

PDF

46.0 KB Created: 2021-06-08 16:18:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 6590567279b348483d55c6c706077f81 SHA-1: 513f406fd89a37c273fb8a87b5e8be5ebf29d60c SHA-256: 95348d697785e035f5a46759bcd008201ef71b77137aa57e10b6f260e2f766ee
182 Risk Score

Malware Insights

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

This PDF document is designed to lure users into clicking malicious links by presenting a fake CAPTCHA and a download button. The links lead to websites offering game hacks and generators, indicating a likely SEO scam or link farm operation. The document's structure and content strongly suggest an attempt to drive traffic to these external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 6

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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.tw/app/431946152/cheat-roblox-jailbreak-2021-tp-unpatched-may-2021-game-hack PDF link annotation
    • http://ttikhuruthang.bt/wp-content/uploads/fsqm-files/how-to-get-free-robux-2021-with-no-inspection_GM431946152.pdfIn PDF document text
    • http://ttikhuruthang.bt/wp-content/uploads/fsqm-files/cheat-roblox-lumber-tycoon-2-terbang_GM431946152.pdfIn PDF document text
    • http://ttikhuruthang.bt/wp-content/uploads/fsqm-files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://ttikhuruthang.bt/wp-content/uploads/fsqm-files/imperium-roblox-hack_GM431946152.pdfIn PDF document text
    • http://ttikhuruthang.bt/wp-content/uploads/fsqm-files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://ttikhuruthang.bt/wp-content/uploads/fsqm-files/cheat-engine-roblox-phantom-forces_GM431946152.pdfIn PDF document text
    • http://ttikhuruthang.bt/wp-content/uploads/fsqm-files/roblox-toys-codes-free-2021_GM431946152.pdfIn PDF document text
    • http://ttikhuruthang.bt/wp-content/uploads/fsqm-files/flame-roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://ttikhuruthang.bt/wp-content/uploads/fsqm-files/how-to-get-free-braces-on-roblox_GM431946152.pdfIn PDF document text
    • http://ttikhuruthang.bt/wp-content/uploads/fsqm-files/free-game-pass-all-roblox_GM431946152.pdfIn PDF document text
    • http://ttikhuruthang.bt/wp-content/uploads/fsqm-files/hack-roblox-on-mac_GM431946152.pdfIn PDF document text
    • http://ttikhuruthang.bt/wp-content/uploads/fsqm-files/free-unused-activated-roblox-card-codes_GM431946152.pdfIn PDF document text
    • http://ttikhuruthang.bt/wp-content/uploads/fsqm-files/roblox-hacks-xray_GM431946152.pdfIn PDF document text
    • http://ttikhuruthang.bt/wp-content/uploads/fsqm-files/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://ttikhuruthang.bt/wp-content/uploads/fsqm-files/roblox-fan-group-simulator-cheat_GM431946152.pdfIn PDF document text
    • http://ttikhuruthang.bt/wp-content/uploads/fsqm-files/free-roblox-redeem-codes-11-2-16_GM431946152.pdfIn PDF document text
    • http://ttikhuruthang.bt/wp-content/uploads/fsqm-files/roblox-apocalypse-rising-hack-download_GM431946152.pdfIn PDF document text
    • http://ttikhuruthang.bt/wp-content/uploads/fsqm-files/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://ttikhuruthang.bt/wp-content/uploads/fsqm-files/is-minecraft-free_GM479516143.pdfIn PDF document text
    • http://ttikhuruthang.bt/wp-content/uploads/fsqm-files/coin-master-free-spin-link-today-2021_GM406889139.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_004_off00005113.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5113 25512 bytes
SHA-256: e93a183a078657a301d507b92861771a9b6585c6ed7daacc2e032a02b2c09d33
font_01_sfnt_off00008c1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C1F 20052 bytes
SHA-256: 49d3b99a6e96bca98063c95a79846122d8d44c3dd8d41a09e0e10b80adf71ca4

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