Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8fb031c067b9370…

MALICIOUS

PDF

39.4 KB Created: 2021-05-20 16:55:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 2ed7e3223f0894a5ba6298d1590965ee SHA-1: bd43136722d0eb32bf8bf8b9b2509c562c916fc1 SHA-256: f8fb031c067b937070b84ab4c3e987b921f390a14beb063ff14080e4727cc91b
82 Risk Score

Malware Insights

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

The PDF document contains embedded links and text that mimic a game hack download, a common social engineering lure. The 'SE_CLICKFIX' heuristic indicates the document likely instructs the user to execute a command, which is a technique to bypass security measures. The embedded URLs point to potentially malicious content, suggesting the document's purpose is to trick the user into downloading and executing a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

Heuristics 4

  • 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
  • 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/minecraft-free-online-unblocked-game-hack PDF link annotation
    • http://bressanassessoria.com.br/images/coin-master-hack-that-actually-works_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/http-coin-master-hack-club_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/hack-coin-master-spin-android_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/hack-my-spins-coin-master_GM406889139.pdfIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000035c6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x35C6 24468 bytes
SHA-256: f28f301a925fc53413b82862948c641d0b4a8fd12c4bedb2b031764a9a43a410
font_01_sfnt_off00006de5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE5 2892 bytes
SHA-256: c2578a292634a901613c1dd9f9883dd4930e6811e59ae03d696f263e56ea17b4
font_02_sfnt_off000077ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77CE 18472 bytes
SHA-256: abb7a985c0805b7a76c0c4535c5556453d230e477aa0a832b20693e75b2d3697

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