PDF malware analysis — malicious · a9eba6ae52ceef6a

MALICIOUS

PDF

52.4 KB Created: 2020-10-16 23:20:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26

MD5: ecd1605f36af0edd3932d753853bf512 SHA-1: dd2dce0d611fb4e17648049da4b8217593ccdd8c SHA-256: a9eba6ae52ceef6a6ba160cfa143db3d8c15c9eeb13845010e36d0e38c452eb3

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, which is likely intended to lead the user to a phishing or malware download site. The document body, though heavily obfuscated, contains text related to a 'Bulova marine star watch manual' and a URL that appears to be part of a link farm designed to generate traffic. The ML classifier strongly indicates maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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/strik?keyword=bulova+marine+star+watch+manual In PDF document text
- https://cdn-cms.f-static.net/uploads/4374379/normal_5f8964a87ef64.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368244/normal_5f87dd1285301.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370561/normal_5f891d62200a1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367912/normal_5f87c7779f798.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366331/normal_5f889a777d789.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/1/0485/9271/5941/files/sigibuted.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0482/0126/9405/files/macroeconomics_workbook_principles_and_practice_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0482/3256/2840/files/emperor_and_beauties.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0479/3670/0572/files/leviton_countdown_timer_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4cd7ce1a-0cdc-4519-b182-5da2924597bb/48576486999.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fabc80e5-e558-498f-924c-9d82fd89842a/bufufupuvonibalek.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/962e7d4e-6901-4469-83f8-5aa7cc6c302e/19889509856.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bd6b8228-5a7f-4c17-b2ef-7248d4372c0f/nivejulovinokogij.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/93ecbeb9-adb2-4af6-aad8-b0f8058891b2/78552252067.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/63d4ac24-eda2-47bf-bd9c-a75bd7676aa6/bufenubosikin.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/157807fe-e8af-4377-a624-89e4187b7d08/bironovakil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0481/0352/2467/files/zomavivatunafibosug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0494/0569/0023/files/pivomasovepepelur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0039/6956/files/visible_timer_for_students.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1825/5516/files/61889023554.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0493/1734/7514/files/brothers_in_arms_3_apk_old_version.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1130/8702/files/last_of_us_platinum_trophy_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0487/8801/3221/files/92181273188.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_off0000772f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x772F	5240 bytes
SHA-256: `6fab90d21d5f5f489584faea5a9cd7aa74140787f0d42231543ddb74791f42a1`
`font_01_sfnt_off000088e9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x88E9	10588 bytes
SHA-256: `a1c81001248e017262be65e04554f5fb3aa08c7be14bf8c603cdf1debda9c852`
`font_02_sfnt_off0000acdd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xACDD	16092 bytes
SHA-256: `39b2f4b99ee08965fd4836f89f628a00cde8346cb181131bba0308e80db8fb67`

Open this report in the interactive analyzer, or submit your own file for analysis.