PDF malware analysis — malicious · a723b6760ea95a9d

MALICIOUS

PDF

38.1 KB Created: 2020-10-25 03:18:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14

MD5: eb34fcd1609cc70db2e157e4206254be SHA-1: 80bcc608a6f80cf5f263e60e272ff034135f77d0 SHA-256: a723b6760ea95a9d154672c0d932336d14d791ea9a5b17e96180be0bc9aef072

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a large number of embedded links, identified as a link farm. One of the primary links, https://gettraff.ru/strik?keyword=jet+post+driver, is flagged as a known malicious redirector. The document's structure and embedded links suggest an attempt to lure users to malicious or spam-related content, likely as part of a phishing or SEO manipulation campaign.

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://gettraff.ru/strik?keyword=jet+post+driver In PDF document text
- https://cdn-cms.f-static.net/uploads/4368467/normal_5f8e99fe2ebfe.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369494/normal_5f8c67b6d13c0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367680/normal_5f89702a14727.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384460/normal_5f920d514e0df.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388619/normal_5f94bb345e11a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365586/normal_5f86fa489f1c6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367961/normal_5f8789a18c258.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366003/normal_5f8702d1f3f14.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4373261/normal_5f925ac398b4f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4405945/normal_5f9389472a73d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367961/normal_5f89cb7a48bf3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4389366/normal_5f8fd02a06966.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/5eb73809-b929-4c4a-a658-bd7849fca946/rokuzalen.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6bafe20e-6b5a-4642-a5db-bb4905cbe82b/ge_oven_326b1230p001_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0b584b2d-85db-435d-ab1e-cef605ad74bc/xv2_mods_installer_download.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b62b81f0-1f60-4bba-8143-54343f614be3/16923768161.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0500/4420/7293/files/19080597960.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0496/1799/3877/files/list_of_chemical_industries_in_pakistan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0994/9348/files/double_wishbone_suspension_design.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0496/0210/1397/files/tojomofevurax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0499/2978/1416/files/openvpn_android_not_routing_traffic.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0505/6249/8754/files/vefaberobigubelepibi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4574/6838/files/linux_grep_command_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0485/7040/0928/files/juice_cleanse_plan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0496/2412/1495/files/brew_your_own_beer_instructions.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.

Filename	Kind	Source	Size
`font_00_sfnt_off000058b7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x58B7	4760 bytes
SHA-256: `49a2108750cb0240931c251f4c9bf4499129548ca71293635af9175974cc9e5d`
`font_01_sfnt_off000068f7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x68F7	10088 bytes
SHA-256: `083194751253d7762fd5e1e63690eb5a9b6b59be5e11670923801df070d7becf`

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