PDF malware analysis — malicious · e6c591689b233524

MALICIOUS

PDF

82.9 KB Created: 2021-01-06 21:06:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05

MD5: a4d0e4f77b97a1ffd9c2db1fdaecc361 SHA-1: c1086417f2f0ed3cf1ffc8740817f751f109f036 SHA-256: e6c591689b2335244763bd7345682a12d976fe1f2b2cd37b85191a208b78a881

244 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a significant number of embedded links, with many pointing to disposable hosting services and redirecting to known malicious infrastructure. This pattern is indicative of a link farm designed to distribute phishing lures or malware. The ML classifier and ClamAV detection further support the malicious nature of this file.

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
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://traffmen.ru/123?utm_term=crest+movie+theater+westwood In PDF document text
- https://roxuvipiga.weebly.com/uploads/1/3/4/6/134637137/bulexepubiminevowex.pdfIn PDF document text
- https://nubenitenaw.weebly.com/uploads/1/3/4/0/134016689/1164022.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378378/normal_5f8aeff696204.pdfIn PDF document text
- https://bosesabefo.weebly.com/uploads/1/3/4/3/134362720/f5b8803b.pdfIn PDF document text
- https://kutemipemowu.weebly.com/uploads/1/3/4/8/134860595/fogelipanilo_kepesimafaja.pdfIn PDF document text
- https://tipotorujaviw.weebly.com/uploads/1/3/4/5/134523694/mapiguwotozidi.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4413374/normal_5ff55844efdfc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366969/normal_5fbf3c05259ad.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366027/normal_5fba646e7b4e0.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/651f3805-dca2-4a65-b740-c59963bb6680/nadidoselap.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1613edfd-fde9-457f-bd66-c5a6763b266b/69211738465.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5c5eceb6-80d5-4646-9dcb-adebb9cb3625/53733851396.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fad7923c-2c43-49d2-a274-ac60f97dd4c1/el_conejo_lector_primeros_pasos.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/516475c3-26ad-41d5-9b13-c1a1233802bc/18106813749.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ddc36186-4e0a-402e-8555-9749e2d5016a/remington_law_enforcement_training.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_off0000f9bc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF9BC	4888 bytes
SHA-256: `037687a47141f9327928d1910c932b1188e13059f24cd3889fcc2fb38ff3b31c`
`font_01_sfnt_off00010a69.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10A69	11360 bytes
SHA-256: `59ad5b5dcccf24f6e3be918cb8ed3865928a3bd25818fae6194c667d1dad1ddd`
`font_02_sfnt_off000130c6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x130C6	4324 bytes
SHA-256: `9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2`

Open this report in the interactive analyzer, or submit your own file for analysis.