Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d7cf3cebd29d8f1…

MALICIOUS

PDF

37.1 KB Created: 2021-05-18 03:00:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: cc991716dfbc10b540984a045896c7e0 SHA-1: ebe28289e5c567861a0a44609b7eaf13aadc0b31 SHA-256: 0d7cf3cebd29d8f15614e8547220a57a0f45121ccb415031002d541a6bee98d1
170 Risk Score

Malware Insights

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

The PDF document contains embedded links that redirect to a website offering a 'Robux Hack', presented as a free generator or game hack. It also displays a fake CAPTCHA or human verification prompt to trick users into clicking the malicious link. The document's content and heuristics strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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.
  • 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
  • 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.xyz/app/431946152/robux-hack-free-robux-game-hack In 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_003_off00003482.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3482 25496 bytes
SHA-256: e7dc5411d8107c5758700181191e761facb4a1723501e69e2f95723083c2efc8
font_01_sfnt_off00006f8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F8D 18412 bytes
SHA-256: e7ad190f023b5a59f82d5d2304e728b1fb84096fbbeb22520bbc212286f43b51

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