PDF malware analysis — malicious · 17a5e2dd2cdd066e

MALICIOUS

PDF

67.6 KB Created: 2021-09-14 13:03:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14

MD5: d5e76137978c98cf485933abfde827fa SHA-1: 0e941952fa82899abffcd3fd3839098906251f76 SHA-256: 17a5e2dd2cdd066e7ec1a0d15496199796f9ecb2e5cb116551f2ffe2c4e2d60e

146 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF is identified as malicious by a ML classifier and ClamAV, exhibiting characteristics of a phishing lure. It contains an image-only design with a clickable action, typical for tricking users into visiting external URLs. The presence of numerous disposable links on potentially disposable hosting further supports a malicious intent, likely for phishing or malware distribution.

Machine Learning

Nyx PDF Classifier malicious score 0.9957

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
Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE

PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 67 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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://crewmak.ru/uplcv?utm_term=sistemas+productivos+pdf PDF link annotation
- http://atsolution.org/userfiles/file/20210911214232108816527.pdfIn PDF document text
- http://thephinhmienbac.com/upload/files/mobewodetirivakiram.pdfIn PDF document text
- http://industrialsupplies.pk/userfiles/files/ratusipojegunovenobokugur.pdfIn PDF document text
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1613c7f931b5d3---niwepapemanal.pdfIn PDF document text
- https://kubermatkaplay.com/ckfinder/userfiles/files/574269020.pdfIn PDF document text
- http://dezis.ru/uploads/files/geguzakiv.pdfIn PDF document text
- http://congseng.com/uploadfile/files/mawasekuker.pdfIn PDF document text
- https://hophamthaibinh.com/upload/files/dosolo.pdfIn PDF document text
- http://www.hkrns.org.hk/ckfinder/userfiles/files/gisujulitiwisoj.pdfIn PDF document text
- http://dominopark.pl/public/upload/ckfinder/userfiles/files/simawenulilogo.pdfIn PDF document text
- http://ondrejkocar.cz/img/file/48751003962.pdfIn PDF document text
- https://mpressivelabels.com.au/application/third_party/ckfinder/userfiles/files/tebadojarajijike.pdfIn PDF document text
- http://gordostcrista.ru/userfiles/file/pisimowixoluzojamojofuve.pdfIn PDF document text
- https://media-get.com/userfiles/files/rokemovedizuvor.pdfIn PDF document text
- https://xn--fct5g39pjpo.tw/upload/leakstop/files/46758432998.pdfIn PDF document text
- http://twtqedu.com/userData/ebizro_board/file/wuruxagutewewume.pdfIn PDF document text
- http://njbeihang.com/uploadfile/file///2021090505294168.pdfIn PDF document text
- http://cbafjvn.com/uploads/userfiles/file/85134153410.pdfIn PDF document text
- https://connatlas.com/home/conn/public_html/ckfinder/userfiles/files/fuwidijebobemurawowa.pdfIn PDF document text
- http://sevinctekstil.com/resimler/files/80312798001.pdfIn PDF document text
- http://irths.com/upload_files/files/dosim.pdfIn PDF document text
- http://chinhsuasolieu.com/media/files/22024848061.pdfIn PDF document text
- http://espwireless.net/uploads/file/zokitexudexuxofirenefu.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_off0000adb1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xADB1	14336 bytes
SHA-256: `4dd02718a6d575929ff79acf9c49b7e88237bba240d163af6d55a47151abe339`
`font_01_sfnt_off0000d01f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD01F	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off0000e836.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE836	10872 bytes
SHA-256: `6579ea6922a60aad2eb5f03b4578f049c73b53a5d0d528e17fa86858fd53de8a`

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