PDF malware analysis — malicious · eed66a136be07ac1

MALICIOUS

PDF

70.6 KB Created: 2021-03-13 23:58:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21

MD5: aedfa0ab16b70e2b68e22c80be532592 SHA-1: 9f409d2e36b19d0b2404e8866498318387db44ae SHA-256: eed66a136be07ac1846b0b7fc1f38f4b8d5f88ffb392edd17d66f75859054d43

186 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many pointing to disposable domains, suggesting it's part of a link farm designed to manipulate search engine results or host malicious content. The embedded URL `https://xajibur.ru/wix?keyword=pitbull+puppies+for+sale+in+nc+charlotte` is a primary indicator of the malicious redirection attempts.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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.
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://xajibur.ru/wix?keyword=pitbull+puppies+for+sale+in+nc+charlotte PDF link annotation
- https://cdn.sqhk.co/basinasedu/aGhcHje/chintakayala_ravi_cinema_songs.pdfIn PDF document text
- http://zereteleriw.getenjoyment.net/xcode_storyboard_tutorial_for_beginners.pdfIn PDF document text
- https://jatevabuxises.weebly.com/uploads/1/3/5/3/135382810/8054020.pdfIn PDF document text
- https://cdn.sqhk.co/vopofuxo/WKOgdgc/sejomefatubiwanal.pdfIn PDF document text
- http://mevukavotidu.getenjoyment.net/33315581525.pdfIn PDF document text
- https://cdn.sqhk.co/wimedizi/hFIhhlf/immigration_nation_netflix_review.pdfIn PDF document text
- https://maxazokal.weebly.com/uploads/1/3/1/6/131606281/fezedifeme.pdfIn PDF document text
- https://bikasiju.weebly.com/uploads/1/3/4/3/134385723/gumizarapibake.pdfIn PDF document text
- https://xoputiwi.weebly.com/uploads/1/3/1/4/131438532/e41bc7b17a1.pdfIn PDF document text
- https://bilurowunolip.weebly.com/uploads/1/3/4/3/134316979/femedo.pdfIn PDF document text
- https://cdn.sqhk.co/fepexeguma/Uic0hj0/40574088561.pdfIn PDF document text
- https://cdn.sqhk.co/nifijagik/JhgciUA/16770651791.pdfIn PDF document text
- https://topizamo.weebly.com/uploads/1/3/4/4/134435864/lilomaxozir.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/a17eceea-cf29-4344-8f05-f3a7855b4d1f/what_does_a_white_rattlesnake_mean_in_a_dream.pdfIn PDF document text
- http://mugazukadum.onlinewebshop.net/1280548603.pdfIn PDF document text
- https://s3.amazonaws.com/jokotaziweluge/zabipapesebuduwowewikozal.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/aad8e568-5e48-4d9f-9583-705a1fadda62/will_lost_be_on_netflix.pdfIn PDF document text
- https://s3.amazonaws.com/dinisemowoge/automotive_lighting_design.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/baf2b76a-85c7-4748-8a9f-0904b62a5bea/breville_toaster_oven_pro_sale.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_off0000cc04.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCC04	5128 bytes
SHA-256: `1fa0180f4c5b1f6bb36950b2934adf77d10f16c8452bdfd43fe7d86aa43bf2a4`
`font_01_sfnt_off0000dd59.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDD59	9860 bytes
SHA-256: `9318af0c23bbb615cfe9d3f7efa0a9465dfc3673acc5e76281ccf224075eaf45`
`font_02_sfnt_off0000feed.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFEED	4324 bytes
SHA-256: `4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3`

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