PDF malware analysis — malicious · b46a0ab8b6d0bda4

MALICIOUS

PDF

42.8 KB Created: 2020-10-15 23:33:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15

MD5: 1763d1e3b4959ec052a0cb4e62893074 SHA-1: 3355c8b98ff291d51a66c7b6ae5a0b78f4e95993 SHA-256: b46a0ab8b6d0bda48acf4bf12560a8934b404ba7faf69dc01741eee8b4a31b70

124 Risk Score

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 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://gettraff.ru/123?keyword=progressive+web+app+development+pdf In PDF document text
- https://cdn-cms.f-static.net/uploads/4366316/normal_5f87733bb1fc1.pdfIn PDF document text
- https://site-1040575.mozfiles.com/files/1040575/20635195589.pdfIn PDF document text
- https://site-1038784.mozfiles.com/files/1038784/lexiwaboxixuw.pdfIn PDF document text
- https://site-1038890.mozfiles.com/files/1038890/keduzo.pdfIn PDF document text
- https://site-1043207.mozfiles.com/files/1043207/20158937051.pdfIn PDF document text
- https://site-1037227.mozfiles.com/files/1037227/sedejesanofewajanites.pdfIn PDF document text
- https://site-1042725.mozfiles.com/files/1042725/51770156551.pdfIn PDF document text
- https://site-1038525.mozfiles.com/files/1038525/10146213774.pdfIn PDF document text
- https://ganulexotugoris.weebly.com/uploads/1/3/1/1/131164012/2441207.pdfIn PDF document text
- https://papunagaku.weebly.com/uploads/1/3/1/3/131384156/728af481.pdfIn PDF document text
- https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/kezupukono.pdfIn PDF document text
- https://site-1042498.mozfiles.com/files/1042498/8739270622.pdfIn PDF document text
- https://site-1048528.mozfiles.com/files/1048528/bunava.pdfIn PDF document text
- https://site-1040144.mozfiles.com/files/1040144/fusoragunebumi.pdfIn PDF document text
- https://site-1041765.mozfiles.com/files/1041765/4636578953.pdfIn PDF document text
- https://site-1038614.mozfiles.com/files/1038614/94105550866.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/80ac761f-e27e-4414-b922-65ccd71e32d1/99722235460.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9610bb9c-8df4-4f1d-8334-519f133cebf6/tisurebuxawadorutusare.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b95b1e2d-4d40-467f-9d48-3bf50f67cd6a/nilidegaravexijuvamuj.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_off000068be.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x68BE	5656 bytes
SHA-256: `24c4b1b5ccc6429392e0dd448b300e5d26d903515a10e092410f97f1ec43e932`
`font_01_sfnt_off00007bf9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7BF9	9960 bytes
SHA-256: `e8942c14996b186f7a7ab8014b0fc57deda80cd4c44c47300d23d2cb7d0735e9`

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