PDF malware analysis — malicious · 22a4a524bb143e70

MALICIOUS

PDF

75.1 KB Created: 2021-09-13 06:53:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-27

MD5: 8d313b3d7867bfe6e7d63414afd6e157 SHA-1: 7095d560edc8062892de93613d4c5476118bda49 SHA-256: 22a4a524bb143e706fa082ebd0419f550d16ca74def1a75375308ae94ce4d29f

134 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The file is identified as a malicious PDF by ClamAV and an ML classifier. It contains embedded JavaScript and multiple external URIs, including one that appears to be a phishing lure related to 'kidnap streaming'. The PDF structure suggests it's designed to redirect users to potentially malicious content hosted on various domains.

Machine Learning

Nyx PDF Classifier malicious score 0.9901

Heuristics 6

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.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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://wastran.ru/uplcv?utm_term=kidnap+streaming+vf PDF link annotation
- http://zhuoer.ltd/userfiles/file/murolodatulexuwutulesijaw.pdfIn PDF document text
- https://techson-cctv.com/upload/file/wuvaxagefifupizifiba.pdfIn PDF document text
- http://usairsprings.com/userfiles/file/mojozezuz.pdfIn PDF document text
- https://davidfoleyinc.com/userfiles/file/92984079931.pdfIn PDF document text
- https://ispartaprefabrik.com/ckfinder/upload/files/bodiripewaz.pdfIn PDF document text
- http://sobinco.cz/ckfinder/userfiles/files/68372884693.pdfIn PDF document text
- https://luatsuavina.com/userfiles/file/jinimixozukubebog.pdfIn PDF document text
- http://szentdorottyapatika.hu/files/48592343148.pdfIn PDF document text
- http://ng-sons.com/userfiles/file/96868637155.pdfIn PDF document text
- http://doingthing.com/downloads/blog/geust/files/88650728593.pdfIn PDF document text
- https://bozoklar.org/ckfinder/userfiles/files/dikovegodanezoxep.pdfIn PDF document text
- http://ketnoikienthuc.com/upload/files/50614917291.pdfIn PDF document text
- http://ptk-tent.ru/userfiles/file/23973653722.pdfIn PDF document text
- http://totoumi.jp/upload/file/wopunirazuxesijoba.pdfIn PDF document text
- http://abwplazaview.com/uploads/files/26469693443.pdfIn PDF document text
- http://commandhousecreations.com/uploads/files/siwopit.pdfIn PDF document text
- http://svsteinfurth.de/radsportfiles/file/78077221747.pdfIn PDF document text
- http://itexpertdog.nwoasis.com/upload/files/67228328611.pdfIn PDF document text
- https://supermagnum-bg.com/userfiles/file/kagalibaferazelokedebitiw.pdfIn PDF document text
- https://lolakarimova.uz/ckfinder/userfiles/files/zuwukigivoda.pdfIn PDF document text
- http://ottuk-e.org/userData/board/file/59919869243.pdfIn PDF document text
- https://firsatoyun.com/calisma2/files/uploads/25361816150.pdfIn PDF document text
- https://sofanet.ro/ckfinder/userfiles/files/42550761458.pdfIn PDF document text
- https://olterus.net/contents/files/42701570333.pdfIn PDF document text
- http://gtlfuelmarine.com/userfiles/file/30971248562.pdfIn PDF document text
- http://www.artefuoricentro.it/js/lib/ckfinder/userfiles/files/kajasusisivilanaxi.pdfIn PDF document text
- http://teusz.pl/UserFiles/file/korimagobeliz.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_off0000beca.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBECA	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000d6e1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD6E1	10732 bytes
SHA-256: `18db52c7e773177f45649b7eb0f0f4b2b500df06387199c20077202f64755dac`
`font_02_sfnt_off0000ef53.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEF53	18028 bytes
SHA-256: `a5cd91689835f4020a3cee6ad86f3cdf42059cb62273ac140c0883232c557570`

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