Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdca2f99b595c7b6…

MALICIOUS

PDF

39.7 KB Created: 2021-05-23 01:04:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 44e4b40e39d26f6a7ff0e1eef0b0f11b SHA-1: 09e6b99e4496bdbfc829ebf932cf99d8f19371f9 SHA-256: cdca2f99b595c7b68b39afe30ac6ebfbb4bfef27a62c1dcffbfed12b5ab4a385
200 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, masquerading as game hacks and generators. The document body and heuristics indicate a social engineering lure designed to trick users into clicking these links. The presence of embedded URLs and the ML classifier further support the malicious nature of this document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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/479516143/how-to-download-minecraft-for-free-on-pc-game-hack In PDF document text
    • http://dream-house.de/images/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • http://dream-house.de/images/minecraft-pe-texture-packs-free-download_GM479516143.pdfIn PDF document text
    • http://dream-house.de/images/free-spins-coin-master-2021-glitch_GM406889139.pdfIn PDF document text
    • http://dream-house.de/images/how-to-make-a-minecraft-java-server-for-free_GM479516143.pdfIn PDF document text
    • http://dream-house.de/images/minecraft-free-download-pc_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_off00003505.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3505 25252 bytes
SHA-256: 512dd29d33f566e9098d526e00250015423e0e84c3489eb9cb3b93dfc0a72a9e
font_01_sfnt_off00006ecc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ECC 3092 bytes
SHA-256: 3811f2fb1880daf4953efcc9c7427d9b438bced237490b00be4a6ec3ecea79e0
font_02_sfnt_off00007977.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7977 18444 bytes
SHA-256: 9e3148d8479467241e454dad7f95496d0753043299a483a1afd63e9d4426fe5d

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