Malicious PDF — malware analysis report

Static analysis result for SHA-256 01083488142f34a1…

MALICIOUS

PDF

35.6 KB Created: 2021-05-21 13:17:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 5ed201a6398abb5470ef22f5b595b8c7 SHA-1: b74662bc6630bb8c6ee977436cd83394a9e18f2c SHA-256: 01083488142f34a13ed8a7cd462103c90234229e6ceec660583fa2e6f485f6ba
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites offering 'free generators' or 'hacks' for popular games and social media platforms, a common lure for phishing or malware distribution. The heuristic firings indicate these links point to known malicious redirector infrastructure. The document body also contains a call-to-action phrase, reinforcing the deceptive nature of the content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/835599320/free-tiktok-likes-no-survey-game-hack In PDF document text
    • http://reggieslockandkey.com/images/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://reggieslockandkey.com/images/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/hack-the-coin-master_GM406889139.pdfIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003221.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3221 24636 bytes
SHA-256: 2947312b32f6c413919ca6277ab3f2f21c751e2f7b651789dbecb3927c8107f1
font_01_sfnt_off00006add.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ADD 17892 bytes
SHA-256: 070bbf181fa5f5f9f6e7cc39461a8fafc014c6f37f15ae67e02d5fc4d998fce6

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