Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c190f89280abe14…

MALICIOUS

PDF

35.8 KB Created: 2021-06-27 22:34:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 909d7d257533233f9dd786883bfcdc8a SHA-1: c779773ab834d726e97019676bb763bd46ff1674 SHA-256: 0c190f89280abe14b5d780731d586bdc4a131cdfa7b9afa6adf56e3378f9e2e0
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains multiple embedded URLs and a prominent external URI pointing to sites offering game hacks and giveaways, suggesting a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious, and the presence of a download button lure reinforces the malicious intent. No scripts were extracted, but the overall pattern indicates a likely attempt to trick users into downloading potentially unwanted or malicious software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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.co/app/431946152/free-gift-card-roblox-giveaway-live-youtube-2021-june-game-hack PDF link annotation
    • https://katalog.smkn1glagah.sch.id/repository/free-robux-no-human-verification-or-email_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/coin-master-unlimited-spin-hack-apk_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/all-the-roblox-hacker-ids_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/earn-free-online-game-items-and-currencies-roblox_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/dev-roblox-cheats_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/how-many-levels-are-in-coin-master_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/how-to-hack-coin-master-computer_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-coins-for-coin-master-blogger_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/rbx-robux_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/hack-para-roblox-youtube_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-thanos-shirt-roblox_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/casper-hack-for-roblox_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/coin-master-how-to-get-free-pet-food_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/does-roblox-premium-expire_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
font_00_sfnt_off000031fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31FC 22176 bytes
SHA-256: 24e1796fbe342fb1497319c3ab50c43a0377fdf06dc956ebb26d68502275b574
font_01_sfnt_off000062fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62FE 20376 bytes
SHA-256: 2848eba0fe0cfe8dad341f41515a0ef4b226497fe902c7e3fa40f8cbde7d1747

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