Malicious PDF — malware analysis report

Static analysis result for SHA-256 74366947c2656814…

MALICIOUS

PDF

39.5 KB Created: 2020-10-06 19:54:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 517d68bd656c534ccfb145140079b4fb SHA-1: 50324cefe3113877858d931cfc9475920e1e5020 SHA-256: 74366947c2656814a0c5c99e88a874ce16847f55c89207ef6bcac0a15e04cce3
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links, one of which, 'https://ttraff.club/pify?keyword=all+clad+browning+slow+cooker+manual', is identified as a malicious redirector. The document body, though partially corrupted, suggests a lure related to a 'slow cooker manual'. The presence of numerous links to disposable hosting and a malicious redirector indicates an attempt to drive traffic to malicious infrastructure, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.club/pify?keyword=all+clad+browning+slow+cooker+manual In PDF document text
    • https://site-1039446.mozfiles.com/files/1039446/36673587416.pdfIn PDF document text
    • https://site-1037156.mozfiles.com/files/1037156/75354796799.pdfIn PDF document text
    • https://site-1036722.mozfiles.com/files/1036722/85895536864.pdfIn PDF document text
    • https://site-1037837.mozfiles.com/files/1037837/tojanosufemagazobixoji.pdfIn PDF document text
    • https://site-1039702.mozfiles.com/files/1039702/fejomixixalagi.pdfIn PDF document text
    • https://site-1041372.mozfiles.com/files/1041372/xawodonipamumipubuzen.pdfIn PDF document text
    • https://site-1037082.mozfiles.com/files/1037082/belifopijuxof.pdfIn PDF document text
    • https://site-1038526.mozfiles.com/files/1038526/10133058336.pdfIn PDF document text
    • https://site-1037081.mozfiles.com/files/1037081/50052044667.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/9384b244-2f77-4d0a-b486-dae4cd2289a5/wetulo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c45f533-f646-4d68-8aa9-8b82aeb9cf69/92930706101.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c12cf5b0-e764-4510-a915-93c5760d9b24/panusotarak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5af3b4c3-5659-432f-bd2b-d3041c4b5c7a/rirarukirolumin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ee01543-7ce3-41c3-9618-929ea9f5b1b0/mezexaninajavex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f481e8bf-58ed-47ca-b4fd-c0bbb006821c/xikulitelejakodusedexora.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/183a477f-11ae-459f-9865-2bf4df012582/wofifo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f32a80a6-3fc6-472f-a15a-00e4781f1388/28105163644.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B0A 5544 bytes
SHA-256: 2c62ce5a67381809f359f8e46890a57283162d8ac1e661c84b3afd15305f396b
font_01_sfnt_off00006de2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE2 10320 bytes
SHA-256: 76f26d3df1603afee02cb3284beb6ad31d8605c0a43ef09af8bf9968e5b0b014

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