PDF malware analysis — malicious · 09aaa90ebd6e56ac

MALICIOUS

PDF

55.0 KB Created: 2020-10-25 09:07:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23

MD5: c7aafb750645fa615e7c5a636b51ad9d SHA-1: 940106d52936ee33bfb21e3088211da1d6849b2c SHA-256: 09aaa90ebd6e56ac1991a3071565871075d15dda192bc8694fa2b20783d40d06

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to external PDFs, a common SEO poisoning tactic. One prominent link, 'https://ttraff.me/123?keyword=st+benedict+prayer+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect users to malicious infrastructure. No scripts were extracted, but the PDF structure and link farm heuristics strongly indicate a malicious redirection attempt.

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://ttraff.me/123?keyword=st+benedict+prayer+pdf In PDF document text
- https://cdn-cms.f-static.net/uploads/4365661/normal_5f87348ca4ecc.pdfIn PDF document text
- https://vupimolafi.weebly.com/uploads/1/3/1/3/131398504/7d4b3a0a3c0.pdfIn PDF document text
- https://jenafowumavadas.weebly.com/uploads/1/3/1/4/131437472/zokufij.pdfIn PDF document text
- https://molisemopum.weebly.com/uploads/1/3/1/4/131437834/xonunotefow.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn PDF document text
- http://smc.org.inhttp://smc.org.inIn PDF document text
- https://s3.amazonaws.com/felasorarabipis/22831358181.pdfIn PDF document text
- https://s3.amazonaws.com/jamokaroxoj/anatomy_of_digestive_tract.pdfIn PDF document text
- https://s3.amazonaws.com/fuwawibu/554241692.pdfIn PDF document text
- https://s3.amazonaws.com/xamibudasagas/66441020855.pdfIn PDF document text
- https://s3.amazonaws.com/vedexajawo/riwotexojifipipomikivemir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7186/3961/files/th_9_base_layout_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0479/5740/9948/files/gepufageno.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5784/8224/files/calculus_multiple_choice_questions_with_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0503/6664/4384/files/33962247164.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3150116b-dc40-4e52-95b0-02f5e3cdee82/the_raven_lesson_plans.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0ded8f52-ee1d-4982-9027-b88cd7e8b51c/transformers_the_covenant_of_primus.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ea3256c0-eb80-4187-9857-6e72cd8eb863/jipaxekabitejejegete.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c1555c4e-9c1c-4d85-b4fb-9e94e41c2f75/50110504217.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b019d552-0d31-4a68-aa90-89c0dd56ca08/tamagaba.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2f74dd21-5056-4fa4-b4eb-269b373aa8ee/jitodipurides.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/88ba3aff-42be-4272-9843-76ebb90fe7e5/jijeve.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
- https://gitlab.com/smc/meera/blob/master/COPYINGIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000814a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x814A	5284 bytes
SHA-256: `0c5dcee22cee763201c675cb5487a875b3fa10eb40caff94a91182d9e333c876`
`font_01_sfnt_off0000934f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x934F	5892 bytes
SHA-256: `56d87341ddbe50adffa730d7cf4a82be0a417cf93a1f9633ef819b81f93790cc`
`font_02_sfnt_off0000a8af.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA8AF	11304 bytes
SHA-256: `7d4139f3ce956ef56cf0aab815e37b910c722d703864f2f7a54bc33a9ca672a1`

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