Malicious PDF — malware analysis report

Static analysis result for SHA-256 0438167672b4996d…

MALICIOUS

PDF

33.8 KB Created: 2021-07-03 14:32:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 907be4ad1d9d50105b3f4159871679f9 SHA-1: 0fd12a69ab159d03db60566420f13b8775f6a82c SHA-256: 0438167672b4996d034284b182832197c4635179bb0f34a62159dd5d4d1e08d5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into downloading potentially unwanted or malicious content, disguised as game hacks or free currency generators. The primary malicious redirector link is http://netcdn.tw/app/479516143/minecraft-client-game-hack, which is associated with known malicious infrastructure. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting these sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/479516143/minecraft-client-game-hack In PDF document text
    • http://mtsn-baranti.com/perpus/repository/daily-free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/get-free-robux-on-roblox-games_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/tiktok-free-crunchyroll_GM835599320.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/robux-hack-no-download-no-survey-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-legit_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spin-link-today-16-11-2021_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-exploit-free-executor-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spin-now_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-money-codes-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-dominus-free_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-iphone-free_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/run-wild-run-free-roblox-id_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/build-to-survive-zombie-free-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/custom-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/hack-roblox-accounts-easy_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-rape-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
font_00_sfnt_off0000309d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x309D 22488 bytes
SHA-256: 09c723d0d0f2f48ef342dca9ac48525644ad773407be65450bf89dbaa337703f
font_01_sfnt_off000062cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62CD 17928 bytes
SHA-256: 57e76fad508f079f9043ac60b045ca945e272a559816a83973d2a5b91d0e9761

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