Malicious PDF — malware analysis report

Static analysis result for SHA-256 075a49412ad1e330…

MALICIOUS

PDF

38.5 KB Created: 2021-05-12 10:37:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 637e31912143f535239ad1da437c3767 SHA-1: bd5c1ac71ccdf46df70c76eccf79aea508e36677 SHA-256: 075a49412ad1e3300ca6ab6a496341159bc272a565987bb0c5af7738b19b8a26
130 Risk Score

Malware Insights

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

The PDF document contains embedded links that are identified as malicious redirectors, specifically promoting a "Coin Master Hack" lure. The document body text and heuristics confirm the presence of a call-to-action button and links to a known malicious redirector. This suggests the primary goal is to trick the user into visiting the malicious URL, likely to download further malware or engage in phishing.

Machine Learning

  • Nyx PDF Classifier clean score 0.0131

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-hack-spins-free-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_off0000321c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x321C 24868 bytes
SHA-256: 2bf45983875e0df97b21e88459b95457a72d5338fec3e9d0d6c4d92e4dfb5d45
font_01_sfnt_off00006b7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B7F 2912 bytes
SHA-256: 465889f487a2ffbd92e96941b0b5aa255c4e995e45fbf8c3ab40ae9c707ce137
font_02_sfnt_off00007594.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7594 18056 bytes
SHA-256: 3a48050c63aabf25a2d2ed42cf8c513b78da245fbdfe2ff32403c31c4228eff7

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