Malicious PDF — malware analysis report

Static analysis result for SHA-256 67a871d7eda17c1b…

MALICIOUS

PDF

41.4 KB Created: 2021-05-12 05:36:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f5e0f2f14dba4c06382c3ec88c122d4d SHA-1: c2dd47bf5bac3c24fec07e6f068055b7bc8af01e SHA-256: 67a871d7eda17c1bac79892ba77e284d59d1e72b529d1a2511117aea3d9034ab
130 Risk Score

Malware Insights

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

The PDF contains embedded links that are identified as malicious redirectors, specifically leading to a "Coin Master Mod" generator lure. The document body explicitly contains the URL and a call-to-action phrase, "CLICK HERE TO ACCESS COIN MASTER GENERATOR", indicating a social engineering attempt to trick users into visiting the malicious site. The presence of PDF-specific heuristics for malicious links and game hack lures strongly supports this attack pattern.

Machine Learning

  • Nyx PDF Classifier clean score 0.0125

Heuristics 4

  • 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.
  • 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/406889139/coin-master-mod-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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003626.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3626 28696 bytes
SHA-256: ac0419d5011ea715f0ca0b7ac65b9a049f4bf9bb79a7b86825e03387a1f8af92
font_01_sfnt_off0000785a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x785A 2812 bytes
SHA-256: fc92a80cefddbcc51cb4ecd7284aa73b746cbd66adcf1d96110f0323ec06b51f
font_02_sfnt_off000081fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81FA 17720 bytes
SHA-256: e3dc30cd69473f08b9483bb660e9aeaccc8f6f74c3e4f353697525059d592d8d

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