Malicious PDF — malware analysis report

Static analysis result for SHA-256 60bfef1774f0519c…

MALICIOUS

PDF

44.6 KB Created: 2021-06-09 16:08:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 5b3b6d1af69af8446a55acf764b8104b SHA-1: a64eab2e489f8a3ce66164b3860773403fd55ca7 SHA-256: 60bfef1774f0519ce721548575949e489beb752b92d01e578fe90dfa9b62c859
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, including one pointing to a known malicious redirector. The document body text and extracted URLs suggest a lure related to 'free Robux' or game hacks, indicating a phishing or scam attempt. The presence of a visual download button further supports the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.tw/app/431946152/guuudd.info-get-free-robux-game-hack In PDF document text
    • http://shapemybrows.id/images/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://shapemybrows.id/images/free-gfx-roblox_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/free-roblox-hair-boy_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/free-links-coin-master_GM406889139.pdfIn PDF document text
    • http://shapemybrows.id/images/roblox-free-hair-codes_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/coin-master-free-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://shapemybrows.id/images/hack-naruto-final-bonds-roblox_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/coin-master-free-mighty-lion-card_GM406889139.pdfIn PDF document text
    • http://shapemybrows.id/images/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • http://shapemybrows.id/images/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://shapemybrows.id/images/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://shapemybrows.id/images/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://shapemybrows.id/images/roblox-redeem-codes-free_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/free-coin-master-androd-cheats-2021_GM406889139.pdfIn PDF document text
    • http://shapemybrows.id/images/robux-for-free-no-phone-apps_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_off000050f2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50F2 25408 bytes
SHA-256: c28962037b23aead3dc239b83ad79cef22881fe97c13eb8c4b198c7197a4159d
font_01_sfnt_off00008b50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B50 18476 bytes
SHA-256: 2ab5fc0e74594191fc14c4ad3bd4f0f7ac4feb894990c625830775d062e6a6ce

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