PDF malware analysis — malicious · 7758712ae1cc745f

MALICIOUS

PDF

76.3 KB Created: 2021-03-01 05:06:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 6433f81d622a789ed3b0ac6618d2d11f SHA-1: 5bcf9614777962185fc7c9ef25da4e5ecde0bd96 SHA-256: 7758712ae1cc745f8ba14ec9cf1b17b6aec226565c84eb35d3eacc8368b9f752

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9807

Heuristics 4

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.
External URI info PDF_URI

PDF contains an external URL action
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://seumenha.ru/award?keyword=best+price+on+weber+natural+gas+grills PDF link annotation
- https://dolepaxutafajur.weebly.com/uploads/1/3/0/9/130969408/widetuf_wefetawuzi_wezafuge_vipim.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383689/normal_601d7815a618c.pdfIn PDF document text
- https://cdn.sqhk.co/pefisemise/jchfhdT/talekonasulodota.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4494160/normal_5fd66f449d6f9.pdfIn PDF document text
- https://cdn.sqhk.co/vixemujomu/hgjJfgc/xakigozagekoposapajaj.pdfIn PDF document text
- https://bomoturu.weebly.com/uploads/1/3/1/3/131384468/1011532.pdfIn PDF document text
- https://tajerupabud.weebly.com/uploads/1/3/1/1/131164315/pufoneserezem_jarudomep_fepusuzidul_bubirevuwu.pdfIn PDF document text
- https://cdn.sqhk.co/jokawefezo/ijZjd2G/71994387399.pdfIn PDF document text
- https://xokokojimaxuwot.weebly.com/uploads/1/3/5/3/135345946/7770987.pdfIn PDF document text
- https://cdn.sqhk.co/rilowikapaz/fghicgf/systolic_blood_pressure_definition_physiology.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/xamibudasagas/95933553410.pdfIn PDF document text
- https://s3.amazonaws.com/xojafemori/6th_grade_math_percentage_word_problems_worksheets.pdfIn PDF document text
- https://s3.amazonaws.com/jajoxulabojaso/49879117902.pdfIn PDF document text
- http://tajiralilumes.epizy.com/kuledusuborosuwoteg.pdfIn PDF document text
- https://s3.amazonaws.com/juzewojavomofew/chatham_islands_council_annual_report.pdfIn PDF document text
- https://s3.amazonaws.com/lukepepe/maytag_maxima_xl_washer_drain_filter.pdfIn PDF document text
- https://s3.amazonaws.com/gavobawum/22481378606.pdfIn PDF document text
- https://s3.amazonaws.com/gisujubolidine/an_education_2009_movie.pdfIn PDF document text
- https://s3.amazonaws.com/lusegokaves/daycare_assistance_income_guidelines_ohio.pdfIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000103c6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x103C6	5380 bytes
SHA-256: `18df95df8315cbaae52271002505422d5479cac7d369057aa33d792ec8316323`

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