Malicious PDF — malware analysis report

Static analysis result for SHA-256 a82392beee0eb58a…

MALICIOUS

PDF

35.0 KB Created: 2021-07-06 05:07:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: ef6601987cdf433cb3b17294f4d9460f SHA-1: 03204b67ad0682ef1e503992454f4d9d5ff8751d SHA-256: a82392beee0eb58a0070575f2eaf12d1a0bc8b590ea2a5c229319b23131dc33b
180 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains multiple links to external websites, including a known malicious redirector and an IP address hosting various game-related cheat PDFs. The document body, though partially corrupted, contains references to 'Roblox' and 'game hack', aligning with the heuristic findings of a lure for game hacks. The presence of embedded URLs and the nature of the links suggest an attempt to redirect the user to a site that may host further malicious content or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/431946152/roblox-avatar-com-game-hack In PDF document text
    • http://103.40.122.33/akasia/repository/how-to-earn-free-stars-on-coin-master_GM406889139.pdfPDF link annotation
    • http://103.40.122.33/akasia/repository/cheat-roblox-no-clip_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-hack-menu-apk_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-roblox-toy-codes_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/hack-proxo-roblox_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-freeze-tag-hack_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/comment-hacker-le-catalogue-sur-roblox_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-get-a-free-gear-in-roblox_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/bloxbird-roblox-franais-free_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/get-robux-for-fre_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-online-robux-hack-no-survey_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/make-robux-free_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-get-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/tiktok-likes-for-free_GM835599320.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/can-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-get-infinite-robux-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
stream_002_off00003081.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3081 22904 bytes
SHA-256: e70779d95c6f332d39874dd714f268c799b3513f093b67949f57d7e32a3b5be3
font_01_sfnt_off000063dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63DC 18964 bytes
SHA-256: 6c73279a6f200e59a6bfd18b793709ba0d2b202440332040bd73c13792b6dc5b

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