PDF malware analysis — malicious · 0e5dd61a9ba2955c

MALICIOUS

PDF

77.5 KB Created: 2021-09-07 11:03:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05

MD5: ffd238579012d1a25b48833ce5567577 SHA-1: 730b03d0a5d647d489bc78cc67f589b7ae658fdb SHA-256: 0e5dd61a9ba2955c2a21eb9319a640affc0cf8093251d85e1b32c45fc3063ad3

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains a link farm pointing to compromised WordPress upload directories, suggesting an attempt to distribute further malicious content or redirect users to phishing sites. The presence of multiple distinct hosts hosting similar PDF files indicates a coordinated effort to host malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9973

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
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://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16089b73b22d6e---babinutobit.pdf In PDF document text
- https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/ce254009dcab7c1f945a8262ad59666d/gavixinozulasuwedutusufo.pdfIn PDF document text
- http://3bbb.fr/ckeditor/upload/files/rubiduwemexiwenosi.pdfIn PDF document text
- https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/d38ca03230593727e39473be8d530566/tekugagewalunupetazidime.pdfIn PDF document text
- http://jghsclass75.com/clients/f/f3/f322050927ea28328664fd088939ffaa/File/89129430205.pdfIn PDF document text
- http://thefarmatarapahoecounty.com/userimages/75083426647.pdfIn PDF document text
- https://slaterlighting.com/wp-content/plugins/super-forms/uploads/php/files/fda53439bee042500d49227066706387/5416695310.pdfIn PDF document text
- https://esz.jp/img/editor/files/82461821353.pdfIn PDF document text
- http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/d90p3f62ehvegcv94e1r77lte0/woraledemizuxodukoze.pdfIn PDF document text
- https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/tbli9oq4aluvl35jsc9tnq0bar/sekev.pdfIn PDF document text
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c15611c857e---lizeganiguvazamuxi.pdfIn PDF document text
- https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/uu2vj2b28084npgu6ljrqvj5s0/buzadapatojuk.pdfIn PDF document text
- http://childconnect.com/swi/fckfiles//file/6077712426.pdfIn PDF document text
- https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/160906627b5e58---57552561738.pdfIn PDF document text
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079bb0bbe9cd---nusuretoselijogaf.pdfIn PDF document text
- https://hunglivet.com/uploads/files/202108252058128212.pdfIn PDF document text
- https://pensiuneavalentina.ro/app/webroot/file/22962074400.pdfIn PDF document text
- https://all-stage-meditation.tw/uploads/files/60c3df89002e5.pdfIn PDF document text
- https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/rtjnqci8froe7c6a5vgumt1480/7255738557.pdfIn PDF document text
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bdf99652439---fuluguvefa.pdfIn PDF document text
- http://voxel-avocats.fr/uploads/file/mipoxojelovogozadoruri.pdfIn PDF document text
- https://pacpartner.net/images_client//imagesfile/xixotigowibemojosisunetal.pdfIn PDF document text
- https://eobliecky.sk/userfiles/file/52862972678.pdfIn PDF document text
- http://ferrocom-spb.ru/userfiles/files/74035523768.pdfIn PDF document text
- https://ficsllc.com/wp-content/plugins/super-forms/uploads/php/files/v4bs3dduq3o1m008k9srla6l8b/mogodujorunovo.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=opel+astra+2003+service+manualPDF 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_off0000cabb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCABB	11020 bytes
SHA-256: `c4d9532b60c6f2ba9778a129c3fae6f3b3a6b53ba65cabaefe4c27aa990c6546`
`font_01_sfnt_off0000e478.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE478	17024 bytes
SHA-256: `10061ee7c16362300966ff8b863adde592937c8a6242d8e5eea89d6d5418c28f`
`font_02_sfnt_off00010ff5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10FF5	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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