Malicious PDF — malware analysis report

Static analysis result for SHA-256 e34a98301593c07e…

MALICIOUS

PDF

45.8 KB Created: 2021-06-07 00:44:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 9863f0bc76aaa4e5edce7ed62795d57c SHA-1: 42e75d144b8011816518483f3ca0c3f0407f98a4 SHA-256: e34a98301593c07ee3bc2252621187f28793aa83fe98cd1b37533953b4c4ef8f
160 Risk Score

Malware Insights

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

This PDF document contains multiple links to known malicious redirectors, disguised as 'free generator / game hack' lures. The primary link directs to a website promising game hacks, which is a common social engineering tactic to trick users into downloading malware or visiting malicious sites. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/how-to-get-hacks-in-roblox-no-scam-game-hack In PDF document text
    • http://dopheide.be/images/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://dopheide.be/images/hack-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://dopheide.be/images/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • http://dopheide.be/images/how-to-get-free-tokens-in-minecraft-ps4_GM479516143.pdfIn PDF document text
    • http://dopheide.be/images/8bp-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://dopheide.be/images/robux-no-survey_GM431946152.pdfIn PDF document text
    • http://dopheide.be/images/how-to-get-free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://dopheide.be/images/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://dopheide.be/images/coin-master-hack-2021-link_GM406889139.pdfIn PDF document text
    • http://dopheide.be/images/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://dopheide.be/images/script-executor-roblox-free_GM431946152.pdfIn PDF document text
    • http://dopheide.be/images/is-there-a-free-version-of-minecraft_GM479516143.pdfIn PDF document text
    • http://dopheide.be/images/how-to-download-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • http://dopheide.be/images/minecraft-beta-free_GM479516143.pdfIn PDF document text
    • http://dopheide.be/images/tiradas-coin-master_GM406889139.pdfIn PDF document text
    • http://dopheide.be/images/roblox-promo-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://dopheide.be/images/free-roblox-gfx_GM431946152.pdfIn PDF document text
    • http://dopheide.be/images/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://dopheide.be/images/coin-master-gameplay_GM406889139.pdfIn PDF document text
    • http://dopheide.be/images/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.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_off0000535b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x535B 25908 bytes
SHA-256: a3803c2474f5e861dde04a0c1bae3a53c4459dc0611637214e6d3bfa2b8fe9a9
font_01_sfnt_off00008ef6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EF6 18708 bytes
SHA-256: 774d59451908be9f859a24a7650557f096f9acd989185dc214df1bffea6e3452

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