Malicious PDF — malware analysis report

Static analysis result for SHA-256 8344802e67db2dbb…

MALICIOUS

PDF

42.9 KB Created: 2021-05-24 04:37:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 1d229917e7c133a136e80fb7ab7015dd SHA-1: f75a4dc2612165aeef4c42829b52aefe3df171d2 SHA-256: 8344802e67db2dbbf5f0235d837d1953d7ecb0665461036dd0e7e1ac9d2cb5bc
180 Risk Score

Malware Insights

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

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as "free Robux" or game hack generators. The document body and heuristics indicate a lure to a malicious website, likely for credential harvesting or further malware delivery. No scripts were extracted, but the embedded URLs and redirector findings strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7429

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/free-robux-games-on-roblox-game-hack In PDF document text
    • http://svadba-moda.kg/images/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/how-to-get-a-free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://svadba-moda.kg/images/how-to-get-free-things-on-roblox_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/minecraft-font-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003866.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3866 25964 bytes
SHA-256: 50d746d5b515202253038df0e46e575c0a432aa038583b0ac356a0eacf27e08a
font_01_sfnt_off0000758e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x758E 6700 bytes
SHA-256: ae114634718854704d615808d33fb1b747d90eb28e420080bd5adbdfe7fb6a27
font_02_sfnt_off000085cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85CC 18576 bytes
SHA-256: 121d272924a8948b6bfdf19867642727f57edf659587de43eb46571e5003926c

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