PDF malware analysis — malicious · 2b6e7e1821c217c7

MALICIOUS

PDF

86.7 KB Created: 2021-09-15 19:48:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23

MD5: ee0d88213e95bddc170c7ce187d65c02 SHA-1: 8857dce21edb5c15aa8a7d3ca31b64655bb55fe7 SHA-256: 2b6e7e1821c217c78d5531b55a8687e9e40c88f0dd77e9c8a694be7b37213a33

166 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1539 Steal or Harvest Credentials

The file was detected as malicious by ClamAV and an ML classifier, and exhibits characteristics of a credential phishing lure. It contains numerous embedded URLs, many of which point to disposable domains and are part of a link farm, suggesting an attempt to distribute phishing pages. The heuristic 'SE_MFA_LURE' specifically indicates the document's intent to harvest one-time codes or MFA confirmations.

Machine Learning

Nyx PDF Classifier malicious score 0.9973

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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
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://inwebjor.ru/uplcv?utm_term=how+to+login+insta+without+security+code PDF link annotation
- http://thoitranglani.com/upload/files/37099174168.pdfIn PDF document text
- http://www.anclupnapoli.it/userfiles/file/42054274233.pdfIn PDF document text
- http://studiolauramoschini.it/userfiles/files/tetes.pdfIn PDF document text
- http://tetobox-budapest.hu/uploads/files/52266288800.pdfIn PDF document text
- https://ahl2005.com/ckfinder/userfiles/files/2864612399.pdfIn PDF document text
- http://marinda.ru/pics/images/file/vuvebovoxoweboxugijavi.pdfIn PDF document text
- http://kalkulacka-hypo.cz/userfiles/files/22339887723.pdfIn PDF document text
- https://rabudiagnostic.com/userfiles/files/sisexesa.pdfIn PDF document text
- https://windfreeklima.com/upload/ckfinder/files/17316617227.pdfIn PDF document text
- http://aorganboys.handyfriendship.com/upload/files/xagulezuvasezuga.pdfIn PDF document text
- http://baove247.org/upload/files/36206803824.pdfIn PDF document text
- http://gd-weimi.com/upfolder/e/files/20210914093047.pdfIn PDF document text
- http://karate-talence.com/newsite/userfiles/files/96940830061.pdfIn PDF document text
- https://ptogel2.com/contents/files/59662311973.pdfIn PDF document text
- http://squash-fitness.cz/userfiles/file/39158547199.pdfIn PDF document text
- https://www.wsbe17hongkong.hk/_bin/ckfinder/userfiles/files/tesonoxivawofiguloliwe.pdfIn PDF document text
- http://avandcie-energy.com/ckfinder/userfiles/files/konisakemavi.pdfIn PDF document text
- http://relaxzenter.com/uploads/files/87833642563.pdfIn PDF document text
- http://www.temaricerca.com/entry2013/admin/ckfinder/userfiles/files/61552133827.pdfIn PDF document text
- http://1-sanya.com/blog_images/blog_/file/54451331418.pdfIn PDF document text
- http://damutech.kz/upload/2021/09files/210907004853833511mtc98.pdfIn PDF document text
- http://abarappresentanze.it/userfiles/files/virasopikisobodikixonek.pdfIn PDF document text
- http://foodchemsino.com/d/files/77574668530.pdfIn PDF document text
- http://zdrowejaja.com/Upload/file/vefilupakolusu.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_off0000eb86.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEB86	18420 bytes
SHA-256: `a1de8f0cf359b70c1cc08b55a58a4d681319b99bce2e6e0cd347ea9c6b2ad7ca`
`font_01_sfnt_off00011bb8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11BB8	10940 bytes
SHA-256: `60280a053bb783e070e4f9772dbde1afc6b8c3410a9b2f84fb3d51a298b34987`
`font_02_sfnt_off000134dc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x134DC	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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