PDF malware analysis — malicious · ddb977b6a1b0d028

MALICIOUS

PDF

56.4 KB Created: 2020-10-15 06:22:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15

MD5: b5fea15a0fbdc5d6557862e924517a4e SHA-1: 23fb886c93ddcd513ecb0c3291e565d62d743883 SHA-256: ddb977b6a1b0d028c41aa85d366ccf79057c668423441700c293609d37cd7218

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://gettraff.ru/strik?keyword=fantaisie+impromptu+pdf+imslp In PDF document text
- https://ruwopevod.weebly.com/uploads/1/3/1/3/131397973/e41956c9496.pdfIn PDF document text
- https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/9707984.pdfIn PDF document text
- https://mogezisatizate.weebly.com/uploads/1/3/0/7/130775403/binukevuzimuk.pdfIn PDF document text
- https://site-1044309.mozfiles.com/files/1044309/60726589680.pdfIn PDF document text
- https://site-1039840.mozfiles.com/files/1039840/48284628486.pdfIn PDF document text
- https://site-1039688.mozfiles.com/files/1039688/jagopinogasedateki.pdfIn PDF document text
- https://site-1036684.mozfiles.com/files/1036684/lizeka.pdfIn PDF document text
- https://site-1042497.mozfiles.com/files/1042497/83680151190.pdfIn PDF document text
- https://site-1048471.mozfiles.com/files/1048471/71519342667.pdfIn PDF document text
- https://site-1038413.mozfiles.com/files/1038413/33567474173.pdfIn PDF document text
- https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/safado-fodidunixoso.pdfIn PDF document text
- https://pepotoxuxomupav.weebly.com/uploads/1/3/1/4/131483830/nurilajusulurojajet.pdfIn PDF document text
- https://xuvakaxatal.weebly.com/uploads/1/3/1/0/131070170/dawelusonevu-bodipalotit-xejemevunif.pdfIn PDF document text
- https://pigogokeda.weebly.com/uploads/1/3/1/8/131857695/a4eeddb.pdfIn PDF document text
- https://wuwenivavubujer.weebly.com/uploads/1/3/1/4/131437756/vopamon.pdfIn PDF document text
- https://pukotegifo.weebly.com/uploads/1/3/0/8/130874060/kuweg_tupuwakitamug_fadab.pdfIn PDF document text
- https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/xelikanotuzifaja.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://cdn.shopify.com/s/files/1/0428/4655/2227/files/1969_ford_galaxie_500_fastback.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0483/9270/0062/files/77613883894.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/0530/2168/files/nisopederab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5150/7112/files/8297511121.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000071e3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x71E3	5024 bytes
SHA-256: `7d0c4227a91b23756296b90f14b0353f74bb32907acb17075d76866f11734a0c`
`font_01_sfnt_off000082d4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x82D4	14856 bytes
SHA-256: `b5af4baf789421da75773b85f3fdca2e04a20aad849eea0913073817f9615da5`
`font_02_sfnt_off0000b0d3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB0D3	16184 bytes
SHA-256: `c648c52aec952dde0462bb6c0a9eb0694104c16a23fe19116e26a7832e51cdb0`
`font_03_sfnt_off0000c613.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC613	4324 bytes
SHA-256: `4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3`

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