Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fb379aab58db123…

MALICIOUS

PDF

44.1 KB Created: 2020-11-04 02:02:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: b9ee170e93c1551ab60e8f622854c6d6 SHA-1: dea38bd72c4fa2ec20f60c4b591d113cf8f0854a SHA-256: 9fb379aab58db1233b4e68a8789e6df492d36af30f75aec606d66c12e4231c53
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains a large number of embedded links, many of which point to disposable hosting services and a known malicious redirector. The primary URL, https://ggtraff.ru/strik?keyword=integrated+pest+management+guide+virginia, is flagged as malicious. The document's structure and extensive link farm suggest an attempt to lure users to malicious sites, likely for phishing or malware distribution.

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://ggtraff.ru/strik?keyword=integrated+pest+management+guide+virginia In PDF document text
    • https://digonowokeke.weebly.com/uploads/1/3/1/8/131856318/5f01512803a3.pdfIn PDF document text
    • https://sijevunima.weebly.com/uploads/1/3/1/8/131859613/pukolivorigavade.pdfIn PDF document text
    • https://degepuwenezeg.weebly.com/uploads/1/3/1/6/131607310/sakuguf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384634/normal_5f8f48259bfe9.pdfIn PDF document text
    • https://zizeximafebofiz.weebly.com/uploads/1/3/4/3/134369397/bifakerefi.pdfIn PDF document text
    • https://terobatef.weebly.com/uploads/1/3/4/3/134397950/05117fee.pdfIn PDF document text
    • https://sibakixode.weebly.com/uploads/1/3/2/8/132814768/siduru-wojexej-filuko.pdfIn PDF document text
    • https://mesipaku.weebly.com/uploads/1/3/1/3/131383407/925d696447.pdfIn PDF document text
    • https://pumowurunumig.weebly.com/uploads/1/3/2/7/132740285/eee55ed99a1a.pdfIn PDF document text
    • https://dojudiwoju.weebly.com/uploads/1/3/1/4/131406456/5106608.pdfIn PDF document text
    • https://tejigenunonim.weebly.com/uploads/1/3/0/8/130813632/xebopuviban.pdfIn PDF document text
    • https://naxedomabaxa.weebly.com/uploads/1/3/1/6/131606472/d7ea3174.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/temujonuwu/69091144187.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/xukatu.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_off00006d56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D56 5244 bytes
SHA-256: ca74605c795c21cfabf1f7309f7b59744be5b1cdf5f60a594f8f51276ef7aee7
font_01_sfnt_off00007f1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F1C 10748 bytes
SHA-256: b60777f2f9b3f028c03a97748a20a132db7f580bd5e75b50054e4f5d6230d338

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