Malicious PDF — malware analysis report

Static analysis result for SHA-256 16a60ebaa7d3d82b…

MALICIOUS

PDF

60.8 KB Created: 2020-10-01 20:07:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: c964ba48a4f15283848e4fa69c10e1dd SHA-1: ed41d4460ee41d947c77678baa8d369a98651ea0 SHA-256: 16a60ebaa7d3d82bc21c5d30beaa780943da9e521029eebf2efadcaceee66d18
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, ggtraff.ru, which is likely intended to lead the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains a reference to the same URL, reinforcing the malicious intent. The presence of numerous external PDF links, many pointing to Strikingly, suggests a link farm or SEO manipulation tactic to increase visibility and traffic to malicious sites.

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 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.
  • 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://ggtraff.ru/strik?keyword=self+certification+form+template+pdf In PDF document text
    • http://files.veeralohiniva.com/uploads/1/3/2/6/132696274/jugubajexutuzi-javulurovivel.pdfIn PDF document text
    • http://vukix.butler-bowdon.com/uploads/1/3/1/3/131398140/dezojojevi.pdfIn PDF document text
    • http://sobaza.sandplumnaturetrail.com/uploads/1/3/1/8/131871456/aa84d8.pdfIn PDF document text
    • https://site-1037121.mozfiles.com/files/1037121/zeponejaferon.pdfIn PDF document text
    • https://site-1036851.mozfiles.com/files/1036851/44388271005.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/cf3c0563-87c9-4110-a0bf-b067e6164cd7/90329800362.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4ff02af-c020-47a2-b152-837e150f77bc/60407328484.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54b4afef-5036-42c9-9e6c-739383d8653b/38449195883.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4417fc76-5e93-49b8-964d-980617b3315e/setovubuliwaxuwiwebifavel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa9128af-5811-4b08-a5f1-e89e7166b603/wunusalosaxorarabaxina.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc0937b9-b402-449b-b250-1d2e7b077c4e/99157882708.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7aaa5138-be7d-4fbd-b07f-13002d50371a/98790988204.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ddcc1228-93f3-4577-895a-fa95df53f646/vuwusoxufididubovarone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6841cf02-6639-498d-b2bb-5637929eb9e5/dikuregagokawap.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_off0000b04d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB04D 5228 bytes
SHA-256: 0542d211272c66988a4e53992f70418e8369dc5315f81dadd0cdd482e7012e4a
font_01_sfnt_off0000c205.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC205 10672 bytes
SHA-256: 0d949560b0a74a387ae9c4c63b1aa5acac489c12d7def636e5cbd28aad49b460

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