Malicious PDF — malware analysis report

Static analysis result for SHA-256 16269dc84e7bc3bb…

MALICIOUS

PDF

44.6 KB Created: 2021-05-13 01:40:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 55b1eb8c00212c649a345affefeb9c0a SHA-1: 0bd0f2d67e9ce80b4da87e03d4526fe1976d7ab0 SHA-256: 16269dc84e7bc3bb6bac2bd61bf027cfed1718a49f9283939f29e9d2a012fdef
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious Link

This PDF document employs social engineering tactics, specifically a 'ClickFix' lure, to trick users into executing commands or visiting malicious links. The document impersonates Microsoft while directing users to a link on 'netcdn.xyz' for free in-game currency, a common tactic for credential phishing or malware distribution. The presence of numerous embedded URLs further supports the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

Heuristics 5

  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/479516143/how-to-get-minecoins-in-minecraft-for-free-game-hack.
  • 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 https://netcdn.xyz/app/479516143/how-to-get-minecoins-in-minecraft-for-free-game-hack PDF link annotation
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/hack-coin-master-app_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/coin-master-free-spin-link-today-16-11-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/free-coins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/free-robux-accounts_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/coin-master-hack-twitter_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/free-realistic-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/best-site-for-free-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/roblox-com-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1kotadumai.sch.id/__statics/gudangsoal/files/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C3A 24376 bytes
SHA-256: 3cd1ff6b3fc3de363cf3bdcd5db0801d5e8b1656777abe66c35de97224439368
font_01_sfnt_off00008386.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8386 2820 bytes
SHA-256: 96a70491b0783ad8c6fc9b11a18f021aa22c69ac41ee4499b781d16a1b99b689
font_02_sfnt_off00008d26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D26 17872 bytes
SHA-256: d23bbe04ef3196a5fa54f397c57d78b821aa47262b4b410e5e0dbd5db48197bd

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