PDF malware analysis — malicious · 757facaff768abe5

MALICIOUS

PDF

72.5 KB Created: 2021-09-17 04:21:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16

MD5: 2f19429b2037b8530736dece0299d4d1 SHA-1: 1bf5be8a84f7265738beea3e2da3cc9163eb9859 SHA-256: 757facaff768abe56349b43d76d45b98a450b388f770d6f1b5c8e980d63ab1e2

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link farm pointing to multiple disposable hosting sites, with one URL specifically mentioning a game download. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of numerous links on disposable hosting suggests an attempt to distribute malware or phishing content.

Machine Learning

Nyx PDF Classifier malicious score 0.9915

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
PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM

PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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://nocenzura.space/web/img/podborky/files/jijivipemeroximabeto.pdf In PDF document text
- http://jmyhship.com/uploadfile/files/4401999818.pdfIn PDF document text
- https://minipowerpack.net/upload/files/mufaritimavuluv.pdfIn PDF document text
- https://onderhoudnlgarantie.nl/upload/file/dinejuvegevanagowanadefuv.pdfIn PDF document text
- http://manilag.com/FileData/ckfinder/files/20210911_D9CBA01AB1167716.pdfIn PDF document text
- https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143e061097f5---gosisixewav.pdfIn PDF document text
- https://ngoctraithaibinhduong.com/uploads/news_file/musafemawosedazefipa.pdfIn PDF document text
- http://otestmanager.org/club/data/userfiles/file/20210910024537.pdfIn PDF document text
- http://hieuchuan.com/upload/files/muduxotadapijugu.pdfIn PDF document text
- https://mimpidia.com/contents/files/6462430803.pdfIn PDF document text
- https://netiko.ge/img/Data/file/40256727574.pdfIn PDF document text
- http://humansharehouse.com/userData/board/file/82705849126.pdfIn PDF document text
- http://studiopol.com/userfiles/files/senivaxifekibeguxinawusuz.pdfIn PDF document text
- https://sacc-la-chaux-de-fonds.ch/fichiers/file/xarubotesadomasip.pdfIn PDF document text
- http://hoteldanang.com/uploads/images/files/17973181824.pdfIn PDF document text
- https://digitaluzaktanegitim.com/calisma2/files/uploads/tuvokuvipakirunugegid.pdfIn PDF document text
- https://congnghiepxd204.vn/upload/files/46018557552.pdfIn PDF document text
- http://studioriboldi.eu/userfiles/files/52654819058.pdfIn PDF document text
- http://k-sta.kr/FileData/ckfinder/files/20210911_A305125D143EEE39.pdfIn PDF document text
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613357279bb2a---xifofamorulidigesi.pdfIn PDF document text
- http://yummyschool.com/_UploadFile/Images/file/jagijimaniwirefaziwodefu.pdfIn PDF document text
- http://viettruss.com/upload/file/viwos.pdfIn PDF document text
- https://menokatea.in/ckfinder/userfiles/files/vevonokixifufomufakasunal.pdfIn PDF document text
- https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/6cd86e3b59f3ff7197ef490b37993c09/68329172239.pdfIn PDF document text
- http://toflight.mobi/attachment/ckeditor/files/9d6d3a6a674aabc6b227b0873c47d7ee.pdfIn PDF document text
- https://vidaleve.net/ckfinder/userfiles/files/12597299802.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=spider+man+ps4+game+download+apkPDF link annotation
- 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_off0000b748.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB748	10968 bytes
SHA-256: `24da8f99ff8048c9585b9089052f1f3a989d8b83037f019c3aaee2286ebbd95d`
`font_01_sfnt_off0000d08f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD08F	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off0000e8a1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE8A1	17268 bytes
SHA-256: `7da7bc819005a752be0784184b4382cf56b7e66c6c46ef8d58f1c1eaebdb69e4`

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