PDF malware analysis — malicious · aadb448b114dfe29

MALICIOUS

PDF

77.5 KB Created: 2021-09-20 19:23:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-29

MD5: 5eb615d7b9d1794df92d1454bd3fa2b1 SHA-1: 0f7fc560b82116f1b0bdd675424612461173a8b7 SHA-256: aadb448b114dfe298fa27b7db1265b753ab9c825de07e7293a3fb118951561da

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs pointing to external domains, many of which are associated with link farms or disposable hosting, indicating a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of an attack pattern that likely involves redirecting the user to malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.8891

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 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
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://wastran.ru/uplcv?utm_term=best+drawing+apps+for+galaxy+tab+s7 PDF link annotation
- http://ch-yang.com/upload/files/73948878150.pdfIn PDF document text
- https://homeuu.biz/upload/ckeditor/pages/files/nokepude.pdfIn PDF document text
- http://automyjka.pl/automyjka.pl/userfiles/file/81567271436.pdfIn PDF document text
- https://adepotcustom.com/UploadFiles/file/20210906082153119.pdfIn PDF document text
- https://encoyun.com/calisma2/files/uploads/34721093116.pdfIn PDF document text
- https://ceccardolj.ro/userfiles/file/nezarozejenurewupenoraso.pdfIn PDF document text
- http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1613548fe66f7b---susimizefovoxikudomegare.pdfIn PDF document text
- http://busangh.com/attfile/fckimg/file///2021090321328_239729954.pdfIn PDF document text
- https://mariellatriolo.it/public/file/84867951169.pdfIn PDF document text
- http://vietnam-intraco.com/webroot/img/files/17918513371.pdfIn PDF document text
- http://stepasidemedical.com/images/uploads/file/famozusorazakegazelawu.pdfIn PDF document text
- http://alhambra.kopanramen.com/uploads/files/woposusemixidaji.pdfIn PDF document text
- http://twozonechickenlasvegas.com/uploads/files/bemel.pdfIn PDF document text
- http://tnmetalworks.com/images/files/91629524205.pdfIn PDF document text
- http://studiosimonepantaleo.it/userfiles/files/jedeled.pdfIn PDF document text
- http://highgaincomposites.com/img/file/20219495137.pdfIn PDF document text
- https://rotitelor.com/contents/files/denobototiliwi.pdfIn PDF document text
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/5dbeae9617f1949c66f78b5e078bdae6/felozapogijexunifobexaken.pdfIn PDF document text
- http://www.investinwielkopolska.pl/application/lib/ckfinder/userfiles/files/buzagaki.pdfIn PDF document text
- https://bandotrading.it/uploads/file/80225539888.pdfIn PDF document text
- http://erainbowrealty.com/userfiles/file/bagidikubovogawedago.pdfIn PDF document text
- http://thaihotelsale.com/FileData/ckfinder/files/20210910_C3A1CA938B8BF16B.pdfIn PDF document text
- https://ntct.dz/ckfinder/userfiles/files/xeburakifabenevumef.pdfIn 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_off0000d502.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD502	16316 bytes
SHA-256: `6cf9855578383bc37871ee58c2ff9625584a3635164541070cb90b6be784e44b`
`font_01_sfnt_off0000ff73.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFF73	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off0001178a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1178A	11216 bytes
SHA-256: `7a9ce79aa91e2dc8023ddb39caef31e9e3f825e0b26accec322cb18aeb39cce9`

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