Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6164430242c9f9…

MALICIOUS

PDF

77.9 KB Created: 2021-05-21 17:20:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 067c452efc93e3dd692724ed5e7ef5e5 SHA-1: 56a035fb5ca300bb59deeb7bb304c747ae1a415c SHA-256: 2b6164430242c9f961258020d11213825526a2100ef188321576ea6871933188
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://maypoin.ru/strik?utm_term=how+to+pair+versa+lite+to+iphone PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4391340/normal_6068dba4e0955.pdfIn PDF document text
    • https://fexasesari.weebly.com/uploads/1/3/1/0/131070539/minonomib.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385869/normal_5fe0f2bd29395.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454281/normal_5fe9b7a14c294.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408713/normal_6001d35c6a1b0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455179/normal_604fc44a2fd0c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454041/normal_5fdd1c253ebd3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381105/normal_60616641e3491.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455684/normal_600c270a2e838.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420602/normal_606ddb491f893.pdfIn PDF document text
    • https://wipowolulufobud.weebly.com/uploads/1/3/1/4/131437369/meludevanetunet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477886/normal_600a7a0e744bf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366382/normal_6021f8884c66f.pdfIn PDF document text
    • https://jaxedafotonomut.weebly.com/uploads/1/3/4/8/134885779/3928302.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469863/normal_6007b24ebd384.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372373/normal_601e8c1aecc95.pdfIn PDF document text
    • https://zidimegaga.weebly.com/uploads/1/3/0/9/130969389/gapekojezuwup.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/dupula/kokexavegeruvobu.pdfIn PDF document text
    • https://s3.amazonaws.com/siwixomudit/19335587462.pdfIn PDF document text
    • https://s3.amazonaws.com/radubozufiwo/what_should_you_include_in_a_film_review.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwamoxamo/rekanavalu.pdfIn PDF document text
    • https://s3.amazonaws.com/wonumafubij/7252669469.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

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_off0000f3f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3F1 5020 bytes
SHA-256: 97bda316c3adf5969b310f60aa16ae752c8ffb7e6372e75d29ac346ab4cd1944
font_01_sfnt_off0001050d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1050D 10968 bytes
SHA-256: 7bbc8d63a40c5df3b4ccb177447a5112668bfc5d7f5185bc6c1dceeda824bb4a

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