Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9a453dd54be9409…

MALICIOUS

PDF

41.5 KB Created: 2021-05-17 15:21:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 8362889ae928b9351df4e9cdbd8dd16a SHA-1: 921a8dcaa34c57c3861d2b553951f681a7c2b477 SHA-256: b9a453dd54be94091971ce581399a2f2c6aa73c362af011720fa78bf2fb2f4c3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free in-game currency to trick users into clicking malicious links. The document contains multiple embedded URLs that redirect to potentially harmful content, including a primary redirector URL. The presence of these links and the lure suggest an attempt to lead the user to a malicious website, likely for further exploitation or credential harvesting.

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/431946152/roblox-group-free-robux-game-hack In PDF document text
    • https://newenglandafs.com/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/coin-master-2021-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/roblox-getting-hacked_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/roblox-a_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/coin-master-hack-ios-download_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/get-free-cards-coin-master_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/how-to-get-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/free-roblox-executor-no-key_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/roblox-weird_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/coin-master-hack-2021-no-survey_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/cm-free-spins-and-coins_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_003_off00004905.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4905 24304 bytes
SHA-256: ab0cf5d108e88c4280ae6db6200571493483e1d1678065b3b07ccd94ac0ed62b
font_01_sfnt_off00007fbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FBD 18264 bytes
SHA-256: b2792b9995997ff68e5dfa2acea2bbc639d657441038e216f117c3302624ca62

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