PDF malware analysis — malicious · 2d0d7967366e0b93

MALICIOUS

PDF

80.4 KB Created: 2021-03-09 00:48:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22

MD5: 79b772db4a7134bde967ddffc2cde23b SHA-1: 13c482b4ddbdee770e4f6ca454a6270ec5d94c16 SHA-256: 2d0d7967366e0b931794472b7a109d0588b094d85a0300e2b494b7e11558d023

204 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous external links, with one heuristic specifically identifying a 'link farm' designed to generate SEO traffic. The document body, though heavily obfuscated, contains text suggesting urgency ('account will be terminated', 'action required within 24 hours'), aligning with a phishing lure. The presence of ML and ClamAV detections, along with the 'MFA / one-time-code harvesting lure' heuristic, strongly indicates a malicious intent to phish credentials or abuse authentication mechanisms.

Machine Learning

Nyx PDF Classifier malicious score 0.9993

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.
MFA / one-time-code harvesting lure high SE_MFA_LURE

Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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://vilenefex.ru/strik?utm_term=english+class+for+adults+near+me PDF link annotation
- http://difozoxezepi.getenjoyment.net/metric_mania_lesson_1_length_lab_answer_key.pdfIn PDF document text
- http://com-servers.online/nidaxunexoq53g5.pdfIn PDF document text
- https://xalofaba.weebly.com/uploads/1/3/5/3/135339869/a09f8f1c9.pdfIn PDF document text
- http://memowelubi.mygamesonline.org/how_to_install_a_dishwasher_disposal.pdfIn PDF document text
- https://lelusujizuzu.weebly.com/uploads/1/3/1/4/131438438/dilebitixido_lejobizafif.pdfIn PDF document text
- http://lavkavkusa.store/rokufuzurofekeboxofup5nmhs.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4467927/normal_60239d8e09911.pdfIn PDF document text
- http://shopyou.online/74759780165dnvdo.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4473432/normal_6007ad7e7ef94.pdfIn PDF document text
- http://vivekawiga.sportsontheweb.net/mupesenaguxafa.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4407991/normal_6046a0b040f4f.pdfIn PDF document text
- https://pofekabebo.weebly.com/uploads/1/3/0/7/130739116/bilajafelal.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4459477/normal_5fe1a80e7adbc.pdfIn PDF document text
- http://inglassrus.ru/why_recycling_is_important_articleam1p2.pdfIn PDF document text
- http://funasowuto.getenjoyment.net/the_100_year_life_book_amazon.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/gowupuzokowuxes/renutisevodaremaruzopa.pdfIn PDF document text
- http://namepafubi.atwebpages.com/disaserazuf.pdfIn PDF document text
- https://s3.amazonaws.com/sirilagewuga/78125304900.pdfIn PDF document text
- https://s3.amazonaws.com/golepe/85810636882.pdfIn PDF document text
- https://s3.amazonaws.com/vokeri/accutime_watch_corp_cr2025_manual.pdfIn PDF document text
- https://s3.amazonaws.com/zaxefemebidaz/wilifo.pdfIn PDF document text
- https://s3.amazonaws.com/genedesowul/compensating_controls_worksheet.pdfIn PDF document text
- https://s3.amazonaws.com/lepefi/asccp_guidelines_positive_hpv_with_negative_pap.pdfIn PDF document text
- https://s3.amazonaws.com/vufuzewasi/moxaju.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_off0000f7c4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF7C4	5392 bytes
SHA-256: `e0d8487641dde4ec983bdb8d2102b5e46bd5ac3ebf279e459aa470005fc96b88`
`font_01_sfnt_off000109f9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x109F9	13920 bytes
SHA-256: `e9b5f579847157b1d9d2ee4e4cddb0c89be20405ab750da41259eab55f55892c`

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