PDF malware analysis — malicious · 7c68aa251c17e58a

MALICIOUS

PDF

75.7 KB Created: 2021-09-19 10:36:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23

MD5: 42223e7f9f9cfc3e3137c864be2f6146 SHA-1: f128e072e568d7c0c12985d4770f47d4755d9fe0 SHA-256: 7c68aa251c17e58aac38954adb275b0f5d9426bd05de2b2dd3c735d89a1d4e3b

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, including one pointing to a link farm hosted on disposable domains, which is a common tactic for phishing and malware distribution. The presence of these links suggests an attempt to redirect users to malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9009

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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 http://xn--80aafbjcazdrhzgiddbbcsg4l.xn--p1ai/pict/file/litosawe.pdf In PDF document text
- http://fitviewer.com/files/file/bubadivovexifegunudokufox.pdfIn PDF document text
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/e305188ab690f654844e917345eb039f/bofazeveladuzonuwadimok.pdfIn PDF document text
- https://ww150005.linebot.net/upfile/files/20210913045603.pdfIn PDF document text
- https://gabinetpro.pl/kosmetyczka/krakow/files/wakakaxilenodulojajukediz.pdfIn PDF document text
- https://www.zolmedis.lt/ckfinder/userfiles/files/37849778287.pdfIn PDF document text
- http://vinhomeshaiphong.net/app/webroot/img/files/785197384.pdfIn PDF document text
- http://directopinion.biz/uploads/FCK_files/file/68829185259.pdfIn PDF document text
- http://ibtaker.ps/userfiles/file/50703501489.pdfIn PDF document text
- http://shinex-auto.com/userfiles/file/82834047081.pdfIn PDF document text
- http://thankschicken.com/uploads/files/14209150105.pdfIn PDF document text
- http://potentialdesign.cn/userfiles/file/1631422269.pdfIn PDF document text
- http://andreaslasnik.com/data/files/9162006199.pdfIn PDF document text
- http://artio.pl/files/files/wokorifula.pdfIn PDF document text
- http://symbioticlifetech.org/attfile/fckimg/file///2021090794533_858030053.pdfIn PDF document text
- http://musicpark-live.de/userfiles/file/69180151191.pdfIn PDF document text
- https://intersensor.ro/v2011/Files/fck_upload/file/8058775283.pdfIn PDF document text
- http://eraldocomo.it/userfiles/files/ruxubefazupudakaruje.pdfIn PDF document text
- http://hevolta.com/upload/file/84869849795.pdfIn PDF document text
- http://www.pattyn360.com/upload/forum/files/9551561970.pdfIn PDF document text
- https://amursvoidom.ru/media/files/gazinegezabukodoj.pdfIn PDF document text
- https://www.grdr.org/paidel/ckfinder/userfiles/files/sitolafakubur.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=tagalog+short+stories+pdfPDF link annotation
- 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_off0000d501.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD501	10636 bytes
SHA-256: `1aac6c26a4890d3d1df0cc3e1d66184420e249951e8f009d982b9a136d52b99e`
`font_01_sfnt_off0000ed43.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xED43	16544 bytes
SHA-256: `e4d0a20a6380fff72c2177c340f6afbb933db2ddd3c41211d4e1190742ffc3f3`
`font_02_sfnt_off000117ed.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x117ED	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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