Malicious PDF — malware analysis report

Static analysis result for SHA-256 60bb0446c917f60f…

MALICIOUS

PDF

61.3 KB Created: 2020-11-22 20:40:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 446d24d4708f3c64cec2f73df8baebab SHA-1: 39d9d2bc1fea11f0430d63ce491382837526d329 SHA-256: 60bb0446c917f60f8ddc1ce3c21c61ebd2ed61add5754b3721d7ccbe52b21155
214 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which are designed to appear as legitimate PDF files but redirect to malicious infrastructure. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' indicate a clear intent to direct users to harmful sites. While no scripts were directly extracted, the nature of the embedded links suggests a phishing or redirection scheme, likely intended to deliver further malware or phish for credentials.

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
  • 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://traffine.ru/aws?utm_term=cartoon+couple+images+hd In PDF document text
    • https://misamizejip.weebly.com/uploads/1/3/4/3/134348089/sobede-bubuzotab-rolomexotedo-sufumel.pdfIn PDF document text
    • https://fategebedabeno.weebly.com/uploads/1/3/4/7/134718848/3c840056.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/7b41df98-b7fd-4a15-a35c-34e231c7ad5c/chicco_umbrella_stroller_replacement_parts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a176e49-0924-4aa7-9dde-a22aec9ef15e/sigma_bc_509_user_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4144c5b-31ff-49b3-93a8-57986fa4ca40/bujiruzuwaxuxokivinofadof.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c43e1587-c34f-4de9-a2f1-ca4086a7a1fb/60215909083.pdfIn PDF document text
    • https://s3.amazonaws.com/fujadabez/75311249561.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c617c75e-ed5c-4c4f-ba4a-7255d5c0203b/zawotutujurureforesazi.pdfIn PDF document text
    • https://s3.amazonaws.com/panokojol/57581589632.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae4d2122-de26-4b75-9ecf-25937d3c65f5/wurapu.pdfIn PDF document text
    • https://s3.amazonaws.com/dujepav/broken_android_data_recovery_without_usb_debugging.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc200931-98c5-4377-9f0a-42021fa1508d/ankara_mahalleleri_haritas.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_off0000b59b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB59B 5392 bytes
SHA-256: a4d54e5c72abba3c37f09a22ce7663f65d98af233d9e11bd98d572666c7bd318
font_01_sfnt_off0000c7bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7BB 9728 bytes
SHA-256: 6480fc8b892f8830c7be884d5e7302b4140ac9737fdf1a45b7f5c628a78884dd

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