Malicious PDF — malware analysis report

Static analysis result for SHA-256 29858c92ce35b595…

MALICIOUS

PDF

44.0 KB Created: 2021-05-19 00:01:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: cd9c66d1cb51d7b99fee0fbece375bd0 SHA-1: c6870c71514a1121c8379d69db3810356e415f0f SHA-256: 29858c92ce35b595803ac2be99314f1ccbe2afdec9b76bc1a9e6a25a67c89a20
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The document contains a lure for free Robux and a call-to-action button, directing users to a URL that likely hosts a malicious payload. The presence of an MFA lure suggests an attempt to harvest credentials or session tokens. While no scripts were explicitly extracted, the PDF structure and embedded URIs indicate a malicious workflow, likely involving the download of a second-stage exploit or malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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/431946152/to-get-free-robux-game-hack PDF link annotation
    • https://bancroftandsons.com/images/free-spins-and-coins-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • https://bancroftandsons.com/images/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://bancroftandsons.com/images/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
    • https://bancroftandsons.com/images/coin-master-hack-xyz-apk-download_GM406889139.pdfIn PDF document text
    • https://bancroftandsons.com/images/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
    • https://bancroftandsons.com/images/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://bancroftandsons.com/images/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://bancroftandsons.com/images/https-iosgodscom-topic-20218flipmastercoinshack_GM406889139.pdfIn PDF document text
    • https://bancroftandsons.com/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://bancroftandsons.com/images/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
    • https://bancroftandsons.com/images/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • https://bancroftandsons.com/images/free-spins-generated-from-coin-master_GM406889139.pdfIn PDF document text
    • https://bancroftandsons.com/images/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://bancroftandsons.com/images/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • https://bancroftandsons.com/images/coin-master-free-spins-hack-2021_GM406889139.pdfIn PDF document text
    • https://bancroftandsons.com/images/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • https://bancroftandsons.com/images/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • https://bancroftandsons.com/images/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • https://bancroftandsons.com/images/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://bancroftandsons.com/images/coin-master-hack-generator-tool_GM406889139.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_003_off00004c14.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C14 27556 bytes
SHA-256: 74a92751c09eee4109fe82a01c72598b0dc58426a95468942e68f6550568e548
font_01_sfnt_off00008a59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A59 18120 bytes
SHA-256: 5233d5aad1bcdd77905869674ceee15891b0fc77671f16174d37808cf9f58ee1

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