PDF malware analysis — malicious · 41119ec980038307

MALICIOUS

PDF

116.6 KB Created: 2021-01-24 12:27:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11

MD5: 03c6f89990fd9686485c41b4497f2aa9 SHA-1: 9be1edd9aa58b3a09a2bd73f8ca203d6436efa12 SHA-256: 41119ec980038307b07847f1312daad2f70d6e9e63722d1c3dd34f458cc4c2b5

226 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document exhibits characteristics of an advance-fee scam, containing language related to lotteries and prize money, combined with requirements for parcel delivery. It hosts a large number of external links, many pointing to disposable domains, suggesting a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 7

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.
Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE

Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
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://druttle.ru/123?utm_term=gold+miner+game+online+unblocked PDF link annotation
- http://moekolechko.icu/665668366465u2zr.pdfIn PDF document text
- http://ig-socialmedia.xyz/wurizemagatikexolijuvemazcx0o.pdfIn PDF document text
- https://levevuwakute.weebly.com/uploads/1/3/4/9/134904524/9e4a77.pdfIn PDF document text
- http://wamuvosuvebupa.iblogger.org/closing_the_gap_report_2018.pdfIn PDF document text
- https://danegatazi.weebly.com/uploads/1/3/0/7/130776269/mavifupafalizaxux.pdfIn PDF document text
- http://mafaregasinuviv.22web.org/11100117940.pdfIn PDF document text
- https://libufuvebugun.weebly.com/uploads/1/3/1/4/131406816/6630407.pdfIn PDF document text
- https://juvikawupuw.weebly.com/uploads/1/3/1/4/131409017/foxetavovubavutenimu.pdfIn PDF document text
- http://foyou.store/93210819675btfyb.pdfIn PDF document text
- http://petrol-v-pol-price.site/nba_2k20_soundtrack_clean2bffp.pdfIn PDF document text
- https://molisepav.weebly.com/uploads/1/3/5/3/135347716/35c9409d41ec5.pdfIn PDF document text
- https://fefirewaw.weebly.com/uploads/1/3/0/7/130775199/a41cf8dc01b75.pdfIn PDF document text
- https://guvepilafofifiv.weebly.com/uploads/1/3/4/6/134682232/fab3b27e0f.pdfIn PDF document text
- http://podarokinsta.online/the_last_remnant_remastered_switch_cheats1p23i.pdfIn PDF document text
- http://olivamebel.com/fufigireke0ew6y.pdfIn PDF document text
- https://zewabezasakaru.weebly.com/uploads/1/3/4/5/134593707/wezokuleb.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
- http://poweradufuxi.epizy.com/rofimofikavuverepoz.pdfIn PDF document text
- http://kubemumibesedu.epizy.com/odisha_map_in_odia.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_off00017dc2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x17DC2	5116 bytes
SHA-256: `451922d918ff172208631df674f50aea536314ebd55c20aa180716c28bc604e3`
`font_01_sfnt_off00018f07.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x18F07	11608 bytes
SHA-256: `e91f5b5713f937676db81556598b3185136e96504b99728cc23278755bb5d786`
`font_02_sfnt_off0001b69f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1B69F	4324 bytes
SHA-256: `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`

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