Malicious PDF — malware analysis report

Static analysis result for SHA-256 056706eb830c9b29…

MALICIOUS

PDF

36.4 KB Created: 2021-05-12 20:00:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 698e83fcda73ef3fbe331b7cce2da5b9 SHA-1: 6c32a26c7a61b7a0d577908b37bd3362c0fc21a1 SHA-256: 056706eb830c9b291e5003da04edf56aaead22772d298e2e7d1dcc8d65fe6408
170 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious domain, masquerading as a 'Robux Hack Free Robux' generator. This lure impersonates Microsoft, aiming to trick users into clicking the link, which is a common credential phishing tactic. The PDF structure and embedded content suggest it's designed to exploit user interest in online games and potentially lead to further malicious activity.

Machine Learning

  • Nyx PDF Classifier clean score 0.0292

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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/robux-hack-free-robux-game-hack.
  • 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003066.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3066 25908 bytes
SHA-256: 1c2e94472a5bff5bad562c645600478dffae871844da16423fd24b26cbb64848
font_01_sfnt_off00006c72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C72 18412 bytes
SHA-256: e7ad190f023b5a59f82d5d2304e728b1fb84096fbbeb22520bbc212286f43b51

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