Malicious PDF — malware analysis report

Static analysis result for SHA-256 2861ad1326723bb2…

MALICIOUS

PDF

44.6 KB Created: 2021-06-03 05:25:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 22943591d94c21bb7e1a4c82ba41301c SHA-1: 6967ffe58a9441ec836fee4431a5b016637163f1 SHA-256: 2861ad1326723bb20cceff2747f9596e4526dfd4b8cf38b8a8be7c95b947278f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one identified as a malicious redirector, which is designed to lure users into clicking on a 'free generator' or 'game hack'. This likely leads to the download of a second-stage payload. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/479516143/how-to-get-minecraft-realms-for-free-game-hack In PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-free-pet-food_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/www-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/www-robux-us_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-cp_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/pokemon-go-free-1km-buddy_GM1094591345.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-free-spins-heaven_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-op-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/minecraft-bedrock-free-download_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coinmaster-twitter_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/unlimited-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-heaven_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-free-spins-2021-blogspot_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/earn-free-robux-today_GM431946152.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
stream_004_off000051b8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51B8 26728 bytes
SHA-256: d59d80437b0906f210478491bd26d3e58ba625b87d82ee826ec7d2a671708d13
font_01_sfnt_off00008c2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C2D 18208 bytes
SHA-256: e7f5766237207d24130a790e1d2d61f15d85f871af5599da5b7787abafcff996

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