PDF malware analysis — malicious · 5204070776042a0f

MALICIOUS

PDF

75.1 KB Created: 2021-09-21 15:38:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24

MD5: b46841bcb500caa91711d581f70948eb SHA-1: e1009172bb5d156d5c80425008e5594c6101036b SHA-256: 5204070776042a0fdaf003b6544252268f11224dbec2c31a6995b55931696e02

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The file was detected as a malicious PDF by ClamAV and an ML classifier. It contains numerous embedded URLs, many of which point to disposable domains and appear to be part of a link farm, suggesting a phishing or redirection scheme. The presence of external URIs and the overall structure indicate an attempt to direct the user to potentially harmful external content.

Machine Learning

Nyx PDF Classifier malicious score 0.9976

Heuristics 5

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 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://infrive.ru/uplcv?utm_term=android+studio+open+camera PDF link annotation
- http://xn--2e0b30g3uq7pay7m.com/upload/fckeditor/file/79487438166.pdfIn PDF document text
- http://ogledalata.bg/uploads/pages/files/lezosusaniguratinitivivi.pdfIn PDF document text
- https://stayinbranson.com/ckfinder/triplebuserfiles/file/40382796641.pdfIn PDF document text
- https://baxsporthorses.com/userfiles/file/tiwuxilozur.pdfIn PDF document text
- https://too.kg/wp-content/plugins/super-forms/uploads/php/files/a53ea3ddca30ec2b2c5d6b405b98bdf9/58697564517.pdfIn PDF document text
- https://gkia.org/kingkong/userfiles/files/tilijawemelojarotafidofes.pdfIn PDF document text
- http://lnv-cnc.gr/userfiles/file/dajajij.pdfIn PDF document text
- http://chip-chup.hu/upload/file/42124638509.pdfIn PDF document text
- https://editora-arara-azul.com.br/site/admin/ckfinder/userfiles/files/wugunudozopurajozujixux.pdfIn PDF document text
- https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/161413f57d6966---8771846156.pdfIn PDF document text
- http://biomehl.com/images/content/files/wulegadakaxaluxedig.pdfIn PDF document text
- http://associatedreclaimed.com/userfiles/files/78775916961.pdfIn PDF document text
- http://champagne-marc-chauvet.com/images/files/mutadubemivogopegegerudu.pdfIn PDF document text
- http://vinhomeshaiphong.net/app/webroot/img/files/fanojuwikunubodinazemadim.pdfIn PDF document text
- https://elemental-ia.com/userfiles/file/99261489672.pdfIn PDF document text
- http://newgatedesign.com/Images_upload/files/felajadilavisidegupit.pdfIn PDF document text
- http://stfurnimart.com/file_media/file_image/file/43523666386.pdfIn PDF document text
- http://bresky.cz/res/file/garazesofib.pdfIn PDF document text
- https://www.tratedu.net/ssss2018/assets/143ad273/ckfinder/core/connector/php/upload/userfiles/files/94860a50ec792db35738118f0c7db00e.pdfIn PDF document text
- http://safeabortionnepal.com/userfiles/file/dumikitutapasurebaxazug.pdfIn PDF document text
- http://rigassprotes.lv/uploadz/file/muzisinitosanogumexotip.pdfIn PDF document text
- https://nordiskvillaventilation.dk/userfiles/file/dolapiteraraxaxolimelut.pdfIn PDF document text
- https://aaaxxion.info/images/file/660201999.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000c03c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC03C	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000d853.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD853	10712 bytes
SHA-256: `ab2505b3f217589c6adf21e16094ef1df8a42d4dc880fec0bb512ad8e5bf6999`
`font_02_sfnt_off0000f0ef.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF0EF	17668 bytes
SHA-256: `ed65b2d3177bf2dc870a979c9ce783a06635e213deae238aa38677b2e7a603e4`

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