Malicious PDF — malware analysis report

Static analysis result for SHA-256 99017413675093ce…

MALICIOUS

PDF

33.8 KB Created: 2020-09-02 11:58:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f5d947e5a85408a8c1fa19477bcc7f3a SHA-1: f2c764caf78132fc55337f17dce919b7ca72c766 SHA-256: 99017413675093ce38855842dc434430d606b36671ec8cd5b24edfc8ba66b955
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector infrastructure, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'Armonia cromatica edicion pantone pdf gratis' and the URL itself, suggesting a lure for users seeking free content. The ML classifier also strongly flagged this PDF as malicious. The primary attack vector appears to be directing users to a malicious URL, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.com/pify?keyword=armonia+cromatica+edicion+pantone+pdf+gratis
    • https://static.usrfiles.com/ugd/724bd4_a99413ed9c514685b6a62cba0a511a09.pdf
    • https://static.usrfiles.com/ugd/fac845_a1040d48d2c740b783453d72c3f7906c.pdf
    • https://static.usrfiles.com/ugd/0dd040_53037e16461b4afd81db3db7e249d43a.pdf
    • https://static.usrfiles.com/ugd/7041e4_25ad46b280de4af6a130e64df5f27767.pdf
    • https://static.usrfiles.com/ugd/0789d5_3581494b019e47cb9483702fbabda961.pdf
    • https://static.usrfiles.com/ugd/0a593f_b5684701a4d043618d2f0ebce7a13719.pdf
    • https://static.usrfiles.com/ugd/c75f60_3671fc99fbec47d7bb69fec8add0c3a3.pdf
    • https://cdn.shopify.com/s/files/1/0433/4141/4555/files/kefaju.pdf
    • https://cdn.shopify.com/s/files/1/0433/9502/3013/files/rotozojixetilepukosup.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046f2.bin
dd897312d44e61e651cd5dad174d71557343d23c89a1b8fa0eda2cccd18a323d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x46F2 5432 bytes
font_01_sfnt_off00005954.bin
e9675b120c4f9b92baf0c351f95bd7cb9baa1c7883598a26d298c04ae2097f10		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5954 9828 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.