Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e55ee16aacc2019…

MALICIOUS

PDF

43.4 KB Created: 2020-11-07 06:59:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 09d76cd54da1549798fcb491f0d37464 SHA-1: 7860dcef40182c464f258a23f37f7f9235095564 SHA-256: 2e55ee16aacc2019c13b42d862f4f317fb526e67ad10c6cd51fcb66815386200
194 Risk Score

Malware Insights

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

This PDF document contains multiple embedded URLs, including a primary redirector at 'https://ggtraff.ru/aws?keyword=what+is+color+guard+band'. The document body, though heavily obfuscated, contains similar text and URLs, suggesting a lure to a malicious site. The presence of numerous PDF links and a critical redirector firing strongly indicates a phishing or scam 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/aws?keyword=what+is+color+guard+band In PDF document text
    • https://gapefupekud.weebly.com/uploads/1/3/1/8/131871489/532482.pdfIn PDF document text
    • https://fadusoga.weebly.com/uploads/1/3/0/7/130739873/6202603.pdfIn PDF document text
    • https://davobudo.weebly.com/uploads/1/3/4/4/134432622/586146.pdfIn PDF document text
    • https://sumijiluwovoj.weebly.com/uploads/1/3/4/2/134266387/lazunuwurefil_siloginil_bavital.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/satedafadusizo/737_900_united_first_class.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3678147-ebc8-4953-a6d5-3136de73751e/zeraroxofusejunegitit.pdfIn PDF document text
    • https://s3.amazonaws.com/somamere/94709576574.pdfIn PDF document text
    • https://s3.amazonaws.com/zunewidimem/91129067152.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/edward_said_orientalism_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/mawesenasijoser/myplan_poway_log_in.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_off00006ce6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE6 5352 bytes
SHA-256: 7f60deaab5e9ad06daff39f8a25fbc5a2956e486c050d9858f50c7ec4a6f63c8
font_01_sfnt_off00007f1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F1B 10020 bytes
SHA-256: 54fb6bcd02efe2da353f603ca5093fba5217c81dd7bbb6c0ff9ceb29f1fb6f36