PDF malware analysis — malicious · 67d70bcedecac2ec

MALICIOUS

PDF

49.3 KB Created: 2020-10-26 04:02:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31

MD5: 2942ac6dc04e2971339a4e57549d0d21 SHA-1: 9ea3199fa80f05187fb36fb9a8f51e34123550af SHA-256: 67d70bcedecac2ecbe4ca568ccca7691055a602a7bdefb277130d677e22a4900

174 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous links to external websites, many of which are identified as part of a link farm or redirect to malicious infrastructure. The document body, though partially corrupted, contains a URL that appears to be a lure for 'Casio keyboards manual', suggesting a phishing or scam attempt. The presence of multiple PDF links and a critical redirector link strongly indicates malicious intent to lead users to harmful sites.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

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.
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.
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://ggtraff.ru/strik?keyword=casio+keyboards+manual In PDF document text
- https://porelananov.weebly.com/uploads/1/3/0/7/130775759/rolifavoma_lawafaledalil_porugijafer_vevujozikevox.pdfIn PDF document text
- https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/rezareludufiven-voxodopi.pdfIn PDF document text
- https://jubunukaf.weebly.com/uploads/1/3/1/4/131483214/8698601.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371783/normal_5f96106d0b65a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367650/normal_5f8d539695ca5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4372355/normal_5f925f9a0d046.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0266/7737/9249/files/22990554995.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0505/0345/0779/files/miwixotusanan.pdfIn PDF document text
- https://s3.amazonaws.com/janodojivi/math_formula_chart_in_hindi.pdfIn PDF document text
- https://s3.amazonaws.com/donake/zevovavuve.pdfIn PDF document text
- https://s3.amazonaws.com/wizidimawag/classification_of_antiviral_drugs_according_to_mechanism_of_action.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0365/7887/files/esrt_geologic_history_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5575/7977/files/quick_weight_loss_center_diet_plan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9925/8022/files/alimentos_organicos_definicion.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0501/0286/1992/files/microbe_invader_answers.pdfIn PDF document text
- https://s3.amazonaws.com/wovigebi/seylan_bank_annual_report_2009.pdfIn PDF document text
- https://s3.amazonaws.com/firigugixujotov/2447599057.pdfIn PDF document text
- https://s3.amazonaws.com/ruzaganog/losijifofikux.pdfIn PDF document text
- https://s3.amazonaws.com/susopuzupure/emotional_intelligence_worksheets_for_adults.pdfIn PDF document text
- https://s3.amazonaws.com/bulozor/birodopuk.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00006ce0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6CE0	5184 bytes
SHA-256: `80b8a13744a4bf2e5db9f8a1a2d6e9619e4127f675e3f980f6cbcc95823bd6f8`
`font_01_sfnt_off00007e6a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7E6A	11008 bytes
SHA-256: `2d8f5b77983c196a2111e190d78e3284f42d69616b604812c125e67fb55b8402`
`font_02_sfnt_off0000a3cb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA3CB	16088 bytes
SHA-256: `682ac705c5be444ce5b21f04f38977729d9cfe4d43695fc3e0dd73ef5123446b`

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