Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8adf3bfd8042c9f…

MALICIOUS

PDF

42.2 KB Created: 2021-05-20 03:34:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 110e2679be1e6cc91d2899312dd5f0d6 SHA-1: c5e19ab133b000983fe0113197e5d7c3f37bcdb7 SHA-256: c8adf3bfd8042c9fd0545fc05519858d7dc903d1fff0e89eff1fd7e154794892
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, masquerading as game hacks and generators. The primary link directs users to a site offering 'free Pokemon Go accounts level 35 game hack'. The document body and embedded URLs suggest a social engineering lure to drive traffic to potentially malicious content. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/1094591345/free-pokemon-go-accounts-level-35-game-hack In PDF document text
    • http://aspiesretreat.org/images/hack-the-coin-master_GM406889139.pdfIn PDF document text
    • http://aspiesretreat.org/images/minecraft-online-free-no-download_GM479516143.pdfIn PDF document text
    • http://aspiesretreat.org/images/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://aspiesretreat.org/images/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://aspiesretreat.org/images/roblox-money-hack_GM431946152.pdfIn PDF document text
    • http://aspiesretreat.org/images/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://aspiesretreat.org/images/hack-coin-master-download_GM406889139.pdfIn PDF document text
    • http://aspiesretreat.org/images/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • http://aspiesretreat.org/images/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://aspiesretreat.org/images/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • http://aspiesretreat.org/images/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://aspiesretreat.org/images/how-to-download-wurst_GM479516143.pdfIn PDF document text
    • http://aspiesretreat.org/images/how-to-get-free-food-for-foxy-in-coin-master_GM406889139.pdfIn PDF document text
    • http://aspiesretreat.org/images/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • http://aspiesretreat.org/images/mine-minecraft-games-for-free_GM479516143.pdfIn PDF document text
    • http://aspiesretreat.org/images/coin-master-free-spins-whatsapp-link_GM406889139.pdfIn PDF document text
    • http://aspiesretreat.org/images/free-minecraft-java-edition-account_GM479516143.pdfIn PDF document text
    • http://aspiesretreat.org/images/coin-master-free-spins-2021-today_GM406889139.pdfIn PDF document text
    • http://aspiesretreat.org/images/latest-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://aspiesretreat.org/images/free-robux-com-no-verification_GM431946152.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_003_off00004a67.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A67 24268 bytes
SHA-256: 9654e4beff7b059bd91cef11d52992d54104f713f13f52159e71bb85d762e23b
font_01_sfnt_off000081cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81CB 18584 bytes
SHA-256: ad67e2a5dc1a85dae029d6f11d7454de7b76f6df2ba34f4d58d0bcc97441b533

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