Malicious PDF — malware analysis report

Static analysis result for SHA-256 93de459b3875470d…

MALICIOUS

PDF

39.7 KB Created: 2021-05-24 06:25:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: c58b9839cdf8ede67db17d4836d7661b SHA-1: 86b1ed2e42a73c62c31a3dda2bce562c7e02d90a SHA-256: 93de459b3875470d1f9c77a4a95187f573e15658f7bc1da767f5e04460fab891
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links and a call-to-action phrase, all directing users to malicious websites. These sites appear to be part of a redirector chain, ultimately leading to further PDF lures related to game hacks and account generators. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/479516143/minecraft-java-edition-redeem-code-free-2021-game-hack In PDF document text
    • http://asiasieja.pl/images/how-to-make-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://asiasieja.pl/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-free-spin-27_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/minecraft-free-demo_GM479516143.pdfIn PDF document text
    • https://youtuIn 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_002_off000033d7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33D7 25660 bytes
SHA-256: ecf99e7dafcfd152facf85b2658d3599b30b27075c4540780fbedc7deaaee836
font_01_sfnt_off00006e8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E8E 2820 bytes
SHA-256: 972979c3a46100cf5f8fd289bc6fbd2496ff75fec0e3f6753648c72ec6eba714
font_02_sfnt_off0000782d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x782D 18824 bytes
SHA-256: 3e84327372ede1fb0dd75240746e2dc46639f78069d280fe972667d8e0b4261e

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