Malicious PDF — malware analysis report

Static analysis result for SHA-256 7686f0e98bb0f2a7…

MALICIOUS

PDF

33.8 KB Created: 2021-07-06 16:40:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 9728014ef4514ef6ec9145140be5f5a4 SHA-1: 6f72ac6d1477eb2467f0355ee041aad2ba35b041 SHA-256: 7686f0e98bb0f2a736a0e1fa2ffb7bac1d03266d2cb1ea8128adaf7629bb52ff
180 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game hacks and generators to trick users into clicking malicious links. It contains multiple embedded URLs pointing to a redirector and further malicious PDFs hosted on an IP address, designed to lead users to scam content. The document's structure and embedded links strongly indicate a phishing or scamming attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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 http://netcdn.tw/app/479516143/minecraft-free-play-no-download-game-hack In PDF document text
    • http://103.40.122.33/akasia/repository/how-to-hack-account-in-roblox-2021_GM431946152.pdfPDF link annotation
    • http://103.40.122.33/akasia/repository/rbx-land-free-robux_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/5-roblox-games-that-give-free-robux-working-youtubeyoutube_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-get-free-robux-roblox-generator_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/pokemon-go-free-lures_GM1094591345.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-use-snowlords-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/best-roblox-hacks-2021-hand_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-jailbreak-hacks-download-free_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/coin-master-free_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/using-cheat-engine-with-roblox_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/robux-free-online_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/robux-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/is-minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F76 21924 bytes
SHA-256: 6c2a28612cd986396440bf5cf109e8e2f3603833417ed27619acacff5cbfec1c
font_01_sfnt_off00005f90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F90 18912 bytes
SHA-256: 41a5609cb18ac90b1eab2a0592e2c4e81c85eced3afbdcfc55e2077aaaa40b1e

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