PDF malware analysis — malicious · a7b9aacccc574e4a

MALICIOUS

PDF

42.3 KB Created: 2020-11-06 22:42:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23

MD5: 7cd14d1ad73a40d1ce7b7d72831ee86e SHA-1: 839ab99c9807bc668883cb3e40868e2fea2a0305 SHA-256: a7b9aacccc574e4a230b40c7ba734cf7b8847b3a57b0300d4dad574e448a4629

66 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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.
External URI info PDF_URI

PDF contains an external URL action
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://trafffi.ru/aws?keyword=ged+contemporary+math+practice+test PDF link annotation
- https://pefojefevofat.weebly.com/uploads/1/3/4/6/134659321/fcdaec17020ca2f.pdfIn PDF document text
- https://tevirilozarenov.weebly.com/uploads/1/3/2/6/132695732/75ccd9a9e3e40.pdfIn PDF document text
- https://tisatazufewuvo.weebly.com/uploads/1/3/1/1/131163687/314860.pdfIn PDF document text
- https://xazapadikud.weebly.com/uploads/1/3/1/8/131871762/6354a95404982a7.pdfIn PDF document text
- https://tokomekenipejo.weebly.com/uploads/1/3/4/4/134441443/butazefajo.pdfIn PDF document text
- https://povutepumik.weebly.com/uploads/1/3/2/7/132741486/likal-damaxawi-kakoguxuratisiv-dobutivigila.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/34969321-78e3-4a20-b476-8c76e0c01f1e/gedupizunedatowifilof.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6dbb0202-d9da-480e-8946-0d476827ba98/nepuwokenozefitukegi.pdfIn PDF document text
- https://s3.amazonaws.com/dedinavesute/sks_mag_conversion_to_ak_47_mags_kits.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b3e2bf12-0ca3-430f-a144-48eb7f242399/pudonikaboxe.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_off0000639c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x639C	5412 bytes
SHA-256: `ee94f1e441b4dd97cbb69c79b3e4adee510ba6e0b48dc82d318ee406f64c28e6`
`font_01_sfnt_off000075e3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x75E3	11612 bytes
SHA-256: `02f643f5fad17b84608c283c07697f295cd9c10b78d2331c6daf71851b731c7a`

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