PDF malware analysis — malicious · c009b063d8bfceab

MALICIOUS

PDF

88.0 KB Created: 2021-07-05 10:57:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-15

MD5: ef144ffaf2ace7ee986e7992c312bb90 SHA-1: 82069055884997249c8535b487989217582acc12 SHA-256: c009b063d8bfceab90bc6da27482d508c4c5c64342eac8e363021d61956cbae0

164 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to compromised CMS uploads, suggesting a phishing or malware distribution scheme. The presence of external URIs and link farm heuristics strongly supports this attack pattern.

Machine Learning

Nyx PDF Classifier malicious score 0.9835

Heuristics 7

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.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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 http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606df635ba71a---panisujubozubonafek.pdf In PDF document text
- https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/3d0aa50e4a535e448450af13ed054279/11869667029.pdfIn PDF document text
- https://teenvolunteer.org/wp-content/plugins/super-forms/uploads/php/files/fbb3cc52ddba7d2d69564506eb6c660e/suzakekomazenalotuma.pdfIn PDF document text
- http://poslovniimenik.net/firme_data/files/75929913428.pdfIn PDF document text
- https://meganimal.pt/site/upload/file/72132260957.pdfIn PDF document text
- https://systematix.pl/userfiles/file/merasosenazudufudakono.pdfIn PDF document text
- https://wpsqld.com.au/wp-content/plugins/super-forms/uploads/php/files/2ebdee8b63450aa51851124437537b3e/66807414857.pdfIn PDF document text
- https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/16081890ecda32---kunuxetafomulelaw.pdfIn PDF document text
- http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160d003232b072---gazagegod.pdfIn PDF document text
- https://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/83caa5cc5a1f63ad37f6e6fb89d7b3c4/56886742898.pdfIn PDF document text
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/160c658b63b883---21404047097.pdfIn PDF document text
- https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/1le5ln88n8doi15qm8si2cl0s3/tetowemakesonujele.pdfIn PDF document text
- https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/bc0add88f3e70b15b259a4e336cf3787/sujeguwuf.pdfIn PDF document text
- http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081d59b5300d---moted.pdfIn PDF document text
- https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/5t9qj5vm66k16eqdr5vtradlec/91090800434.pdfIn PDF document text
- https://www.analfissur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072180cb7fa0---wagaduxezazopavutel.pdfIn PDF document text
- https://artbynela.com/uploads/file/narebuvilaritunenu.pdfIn PDF document text
- http://marinapogon.pl/upload/file/lopotefabumuvajesubi.pdfIn PDF document text
- https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dccbd7319b7---43431505194.pdfIn PDF document text
- https://upchealth.net/wp-content/plugins/super-forms/uploads/php/files/3dfd6164e0945930ec2172bb8f4d3214/88321831568.pdfIn PDF document text
- https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/233fe47b5e1e06bb7d2996c0639dcc4c/12063921490.pdfIn PDF document text
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/16090257d4dd86---16774887660.pdfIn PDF document text
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1607011eabf54c---6939411580.pdfIn PDF document text
- https://ayurvedaemart.com/uploads/file/66789406438.pdfIn PDF document text
- http://colorfusion.us/admin/images/file/56958587815.pdfIn PDF document text
- http://panziofabian.hu/fck_kepek/88189528339.pdfIn PDF document text
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d52d09b4e13---21507409072.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=fifty+shades+of+grey+watch+full+moviePDF 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_off0000f014.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF014	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off00010826.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10826	18720 bytes
SHA-256: `c03e1b36d7d4bdc0f783d3e25565da95a38c72d73982733e0a8566576d222ef1`
`font_02_sfnt_off0001384d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1384D	11160 bytes
SHA-256: `b5b041bfb5dd792acc71b6fc8e8d52ff62c3bc9d5586a097818f559430165eb0`

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