Malicious PDF — malware analysis report

Static analysis result for SHA-256 de22ed05067c50b6…

MALICIOUS

PDF

60.6 KB Created: 2020-12-18 03:46:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: b1905c0cf4827d5001d95a1fef1424c2 SHA-1: 97cc7f8135c02e93bb82a5a9a253f2924b453a1e SHA-256: de22ed05067c50b678251d477bd27a1ef3c0b0cbde340362a6f964ab4c2fb71c
214 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous links to external websites, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, appears to be a lure related to religious imagery. The presence of multiple PDF links suggests a link farm or redirection strategy to distribute malicious content or phish users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • 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 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://cctraff.ru/aws?utm_term=shankar+bhagwan+ka+photo In PDF document text
    • https://vigofamuzozovi.weebly.com/uploads/1/3/4/6/134671609/gokavumi-lonarenozuvap.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408701/normal_5fd3319f0fe1c.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/50eb80e7-ca74-4a4a-8a81-0f6bea27e609/30686863491.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5a206bda9c57a97de70c0/t/5fd5f760de5b1220c01fda2d/1607858016480/guxexinopelavekotupavob.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc384387848ba205d291bb5/t/5fd090ef0c0c9b10ab0b2349/1607504114277/62419221607.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4c675ec917750a3f08ff0/t/5fc98ad1414f5e352371215f/1607043797556/e_pluribus_unum_stranger_things_recap.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc549542e537a05ef25fbe0/t/5fd686f9154d727871f1667a/1607894778378/12472152474.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea4924c7-32a5-4fc0-9743-a273f8293e7a/79652456465.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4ec032cf09257bd856c41/t/5fd6c03d5b1f6f7539e58b24/1607909438124/extinction_imdb_parents_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aaa6a92d-1f34-4c90-8e0a-c9c64e505204/pifofalufatavezamenigu.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_off0000b30a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB30A 5272 bytes
SHA-256: b24fb4748e8f5351340c09f32843a5addac213a7c6862061e2f8edf1e9f21142
font_01_sfnt_off0000c507.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC507 9552 bytes
SHA-256: ee598f64e2fffa057d773711e1ca4ab5b2c673617d3fcb2b3334f0bf6bd2f67e

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