PDF malware analysis — malicious · 0b0efb2e7b713938

MALICIOUS

PDF

52.3 KB Created: 2020-10-27 23:57:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14

MD5: ee6e6c9aa06de1468f0655105c89a35f SHA-1: e4e0fa2bbc21755dd9a81ca03475e81cd8c40657 SHA-256: 0b0efb2e7b713938bd82f49a2b8883bc4a1ec6f4e4d4175ddb2fea6b5511c20d

184 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of links to external websites, many of which are hosted on disposable domains and point to further PDF documents. One of the embedded URLs, 'https://ttraff.cc/123?keyword=price+is+right+questions+and+answers+uk', is flagged as a malicious redirector. The document body, though obfuscated, contains this URL and other links, suggesting a link farm or SEO poisoning tactic to drive traffic to malicious infrastructure.

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.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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.cc/123?keyword=price+is+right+questions+and+answers+uk In PDF document text
- https://vopevejefed.weebly.com/uploads/1/3/1/6/131606133/widipumov.pdfIn PDF document text
- https://xazojitov.weebly.com/uploads/1/3/1/4/131408465/vatinagaselazun.pdfIn PDF document text
- https://pepisukuwen.weebly.com/uploads/1/3/1/6/131606293/8090319.pdfIn PDF document text
- https://norumevi.weebly.com/uploads/1/3/0/9/130969469/d93cd6.pdfIn PDF document text
- https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/foburadip.pdfIn PDF document text
- https://tosisevutozu.weebly.com/uploads/1/3/4/3/134328017/f1f44491c2fb.pdfIn PDF document text
- https://rogidalot.weebly.com/uploads/1/3/1/6/131636841/finaxidepepukojodapa.pdfIn PDF document text
- https://jubunukaf.weebly.com/uploads/1/3/1/4/131483214/5753841.pdfIn PDF document text
- https://lififamofupuge.weebly.com/uploads/1/3/4/3/134317858/nowasekor.pdfIn PDF document text
- https://vemetufubejukat.weebly.com/uploads/1/3/4/3/134367776/1753910.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/4af0d117-5ab9-4ec6-a5d6-ea2ddd89e258/merck_manual_of_medical_information_latest_edition.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9d542969-a269-4e18-bbbd-8f98cf22ec20/la_pedagogia_del_oprimido_resumen_por_capitulos.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b478cb0b-f9c5-47a6-8efc-800552d783d9/principles_of_finance_with_excel_ben.pdfIn PDF document text
- https://s3.amazonaws.com/sakaburepagase/65056645181.pdfIn PDF document text
- https://s3.amazonaws.com/kigavanus/80567452547.pdfIn PDF document text
- https://s3.amazonaws.com/zuxadol/pares_biomagneticos_dr_goiz.pdfIn PDF document text
- https://s3.amazonaws.com/lebaxa/cahier_journal_de_l_enseignant_primaire_algerie.pdfIn PDF document text
- https://s3.amazonaws.com/bupaxomu/energy_production_in_india.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007d83.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7D83	5332 bytes
SHA-256: `5559dc56539b48919476bbbf61c8359d9902118695e70417fb0cbb3fba2088f1`
`font_01_sfnt_off00008f9b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F9B	11088 bytes
SHA-256: `1110dace95afcb09505f425f259ff50ea9553b4683e4f649e788da79325df1c6`
`font_02_sfnt_off0000b58e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB58E	4324 bytes
SHA-256: `b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c`

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