Malicious PDF — malware analysis report

Static analysis result for SHA-256 c58ffa25f193d8d6…

MALICIOUS

PDF

39.2 KB Created: 2020-09-17 07:33:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dae8a17f435c757b915b6a2d669012ec SHA-1: 1e044fdcd58f0f030d2a002dd00936cbdecf605c SHA-256: c58ffa25f193d8d6224f5bfa2e2627b032303cbc4fb44624e614e38521288f6e
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-Override T1059.001 PowerShell

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body appears to be obfuscated or corrupted, but the presence of the malicious redirector URL and the link farm heuristic strongly suggest a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.me/pify?keyword=armarkat+cat+tree+blue In PDF document text
    • http://mivupiv.sprucecafe.com/uploads/1/3/1/4/131438044/kazadivufagibeme.pdfIn PDF document text
    • http://files.renaissancedress.com/uploads/1/3/2/6/132681824/juloxidujim.pdfIn PDF document text
    • http://guwaf.thecentennialhotel.com/uploads/1/3/0/8/130814328/f4e54a15.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://e1b3e868-0bc5-4e2e-98ee-31619a909711.filesusr.com/ugd/fedf23_bf5c487e523249ccaa2068a31e783737.pdf?index=trueIn PDF document text
    • https://1f35cdae-559f-45f0-b8a0-f1938b355119.filesusr.com/ugd/f967ac_6455c6e4923b418898066340250f6529.pdf?index=trueIn PDF document text
    • https://8ef7b55c-c838-4e7a-834c-7dee87c45085.filesusr.com/ugd/77941b_b9bcef70b5cc479fa4d4169af3438e0e.pdf?index=trueIn PDF document text
    • https://7f58f82d-4067-4eae-b4c2-240469091397.filesusr.com/ugd/6846fe_02b4e3175ad54c80aff21a7a027071e9.pdf?index=trueIn PDF document text
    • https://8fc0bb40-5c91-4dde-b684-11eb67c41d41.filesusr.com/ugd/12daa7_823c4b38ceab48df81eab48f00a005ed.pdf?index=trueIn PDF document text
    • https://3fc918c6-d1a4-4500-8aa1-a92c8af08c01.filesusr.com/ugd/3402b1_920d6f3291154d7791ec2e30fb424ad5.pdf?index=trueIn PDF document text
    • https://5dd77ba8-aa92-4ea1-b101-a87dd8fc41d1.filesusr.com/ugd/7198c1_e646472fcad1461794fd3a7c953dd9cf.pdf?index=trueIn PDF document text
    • https://28c844cd-7e5a-4783-9a4e-b8bb526bffc5.filesusr.com/ugd/a2e20a_36a8548b1f46441ea9beb62ba2f9c431.pdf?index=trueIn PDF document text
    • https://e0dd13e8-81be-4b79-b8d9-7188e93b6137.filesusr.com/ugd/0cd019_da7e7ad8767649079411467680844f04.pdf?index=trueIn 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

Related samples 3

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
font_00_sfnt_off00005a5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A5D 4960 bytes
SHA-256: 0ccd2e3b4e5b614f4e3f24797b4688869ac28dc76e641ede3e48a222dd477b37
font_01_sfnt_off00006b28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B28 10984 bytes
SHA-256: 7968b80bf061e3c46dffa01c9b0aab63bff9935b5bb2961a1feff92994eb42ea

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