Malicious PDF — malware analysis report

Static analysis result for SHA-256 6066336890e7380b…

MALICIOUS

PDF

69.2 KB Created: 2020-11-19 02:59:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 6e7e83f1971df0035406ced1e23f7201 SHA-1: d48e48cc0c4d435f9a95a5ea0f2f93315cd63b66 SHA-256: 6066336890e7380b17eb6da5cf29e13ec394210ca00ea04630f76a9b56fc1c5d
176 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, many pointing to PDF files, suggesting a link farm or SEO manipulation tactic. The 'SE_CALLBACK_LURE' heuristic indicates the document is designed to trick users into calling a phone number, consistent with phishing or tech support scams. While no scripts were extracted, the presence of numerous external URLs and the callback lure strongly suggest a malicious intent to deceive users for financial gain or credential theft.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://traffnew.ru/strik?utm_term=marie+joseph+spiritual+center PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4458839/normal_5faa5dffccb8e.pdfIn PDF document text
    • https://tidemipevu.weebly.com/uploads/1/3/0/7/130740592/5401811.pdfIn PDF document text
    • https://risimukino.weebly.com/uploads/1/3/1/3/131383953/daad2a588d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417220/normal_5f9cc73a71094.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464709/normal_5fa51af403559.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374519/normal_5f937be2e7954.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453334/normal_5fa5b3b9ba3aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365580/normal_5f8e1676d96b4.pdfIn PDF document text
    • https://zufugorutamivas.weebly.com/uploads/1/3/4/4/134401118/jewus-lolakasel.pdfIn PDF document text
    • https://vizomitula.weebly.com/uploads/1/3/4/2/134266598/9718293.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/fc4647aa-9af3-4705-96cd-4a4ec81b27c5/tadarugavob.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bd17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD17 5104 bytes
SHA-256: f9f39b968932c6a63fbfc5fb42f99cf646b40b17c8176215be2fb520fc93ae8a
font_01_sfnt_off0000ce7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE7C 10712 bytes
SHA-256: 5f706de1d817a60c263ad2386406b3752f66f74258722084acd88ed31cb4a3a3
font_02_sfnt_off0000f2a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2A5 16204 bytes
SHA-256: e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15

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