Malicious PDF — malware analysis report

Static analysis result for SHA-256 d585b441b910c31f…

MALICIOUS

PDF

37.3 KB Created: 2021-05-21 20:10:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 3f9e2cd18b9917ec9a9eaeffcbe5c3b0 SHA-1: 99d15b5882d8f2a5fdb49187efe4b2e2ee940245 SHA-256: d585b441b910c31f1e5b7cc2378a7562c5ec9a509a138fbf3d5f9362dc0581cf
122 Risk Score

Malware Insights

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

The PDF document contains embedded URLs and social engineering lures, including a 'ClickFix' style prompt instructing the user to execute a command. It impersonates Microsoft to promote 'free Minecraft codes' via a malicious URL, indicating a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to lead the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/free-minecraft-codes-2021-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/free-minecraft-codes-2021-game-hack PDF link annotation
    • http://technologicalsc.com/images/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/microsoft-roblox-rewards_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/master-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.freenom.comHeyIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000035e4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x35E4 25856 bytes
SHA-256: 35d2294d3ca7fd14fd5e94f671c631424c49f19cc673869146dc16a7905ccaad
font_01_sfnt_off00007052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7052 18288 bytes
SHA-256: c3cf5bb4a2b6206e2e9676afab3316ea2b1c646b143759ef858dff5c5e762465

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