PDF malware analysis — malicious · 66163c5d5e6dca0c

MALICIOUS

PDF

46.9 KB Created: 2020-10-24 16:20:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11

MD5: 3e337a6f937d623d425e6492e1ecb973 SHA-1: 225bdbc688a41dadb3f6c68623787038ea4a22d8 SHA-256: 66163c5d5e6dca0c1c2e813803484157a800f209f857395348f8bc0c34a3fd9b

184 Risk Score

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=ramayan+pdf+in+bengali In PDF document text
- https://deximuxinudob.weebly.com/uploads/1/3/0/7/130739142/tijogarutom.pdfIn PDF document text
- https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/vanojiraxajerubefiza.pdfIn PDF document text
- https://ruxodinari.weebly.com/uploads/1/3/4/3/134377607/kujorafutovulis_zodevowomolaw.pdfIn PDF document text
- https://kubupukadumu.weebly.com/uploads/1/3/1/3/131382740/5e8d75070a.pdfIn PDF document text
- https://dokodajibebabek.weebly.com/uploads/1/3/2/3/132302773/zutoris.pdfIn PDF document text
- https://tisatazufewuvo.weebly.com/uploads/1/3/1/1/131163687/fuvogogusagugo_waritep_pomaxusuvav_fepuve.pdfIn PDF document text
- https://femitinekabel.weebly.com/uploads/1/3/1/4/131437683/koduka-manunadiwebawof.pdfIn PDF document text
- https://worobewunit.weebly.com/uploads/1/3/1/4/131406731/4dc9fc93.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382773/normal_5f8b9e3953e99.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368763/normal_5f88aeb9719c7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377380/normal_5f903bc57e005.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378843/normal_5f8e67c9e9530.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377112/normal_5f8e1d38db6c8.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/1/0437/9197/4557/files/96901749435.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0500/7631/9915/files/71049015763.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0268/9384/4655/files/thinking_at_the_margin_worksheet.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f8a2cca6-fbff-4177-8239-11c27de5e0fa/95194636063.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/62f29284-e32e-45b9-b9a3-daf9160ea65d/majufab.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/832b73ac-ac4d-40a7-9749-8107e00a8f13/zasusak.pdfIn PDF document text
- https://s3.amazonaws.com/xabalaru/angina_de_prinzmetal.pdfIn PDF document text
- https://s3.amazonaws.com/memul/psychology_project_topics.pdfIn PDF document text
- https://s3.amazonaws.com/wonoti/tijesorosujalifajaji.pdfIn PDF document text
- https://s3.amazonaws.com/tejuvonixag/sakasilunifikifisugedera.pdfIn PDF document text
- https://s3.amazonaws.com/kavitokolezub/calories_in_food_chart.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
- http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006050.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6050	5336 bytes
SHA-256: `5c3553ee2709711f6826e50f50c2d692648402d4c31e838444f608515c25b13c`
`font_01_sfnt_off00007278.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7278	6112 bytes
SHA-256: `361c2e8e44594a443f1f7b89c9a5718d817618c626b29f7f781049e5d1ebbdd1`
`font_02_sfnt_off00008686.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8686	11224 bytes
SHA-256: `1ee5a515a869aaa6499b0ffcebdf20d8794baed98e41247dfa57ba2ada288138`

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