Malicious PDF — malware analysis report

Static analysis result for SHA-256 07e783aa9109b942…

MALICIOUS

PDF

58.5 KB Created: 2020-12-24 06:43:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: cbf6533a09dfbc2f6305ad97e3b0dbf2 SHA-1: 34997f1e329dd84cf8838d1a4b63a0473fbc2fe8 SHA-256: 07e783aa9109b9427535c0af27c8bdbb5b553ac86003e1c3d35b34015c45c8c3
204 Risk Score

Malware Insights

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

The PDF contains multiple embedded links pointing to suspicious domains, including a known malicious redirector. The heuristic firings indicate the PDF is designed as a link farm on disposable hosting, likely to distribute malicious content or phish users. The presence of PRC/3D content is unusual for a legitimate document and may be used to exploit vulnerabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • PRC/3D content in PDF medium CVE related PDF_PRC_3D
    PDF contains PRC 3D content. PRC/U3D parsers have been a recurring Adobe Reader attack surface; treat as a related parser-exploit indicator rather than a specific CVE match.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffking.ru/123?utm_term=kfc+potato+wedges+nutrition+guide In PDF document text
    • https://tabogivazosepa.weebly.com/uploads/1/3/1/8/131871767/vemetobarofe-mosezap-pegum.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476148/normal_5fae9bc4cbde9.pdfIn PDF document text
    • https://vaniselati.weebly.com/uploads/1/3/5/2/135293279/wedasa_kepifonu_sezuwexa.pdfIn PDF document text
    • https://konevumi.weebly.com/uploads/1/3/4/3/134399330/38fe51.pdfIn PDF document text
    • https://jarapitoxedomel.weebly.com/uploads/1/3/1/4/131437170/2c63533cedb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370764/normal_5fde2de89c1e4.pdfIn PDF document text
    • https://lisefemibumosu.weebly.com/uploads/1/3/4/3/134339955/8659590.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449399/normal_5fb27e6deeda2.pdfIn PDF document text
    • https://bafumujem.weebly.com/uploads/1/3/4/4/134498711/a63330.pdfIn PDF document text
    • https://pegebitejujag.weebly.com/uploads/1/3/4/4/134445458/db56edc14a2e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453537/normal_5fc0c543c465e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473062/normal_5fb62ea09cc73.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478926/normal_5fb6060620c6c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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 8

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_off0000a960.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA960 5352 bytes
SHA-256: 0d50300f9adfdf131b58219bbd03f625e5f278bc32c63ea08d3e722bada6efb1
font_01_sfnt_off0000bbc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBC5 9860 bytes
SHA-256: 1025fba87d62fd57de7c1babec0875261d260867f9a23d5efdcbfdc6ae732e11

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