PDF malware analysis — malicious · d88eaef8adc8fb3a

MALICIOUS

PDF

92.2 KB Created: 2021-09-02 20:16:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-23

MD5: 49749d9cfeeaa7ab43db8e27b62be390 SHA-1: 8941d53f12c79b77fb732ca57f576dad881189ae SHA-256: d88eaef8adc8fb3ae9cc40954c016f2d21474c32a45c8eb2f7bec298e5e9bb1c

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and link farms indicates an attempt to lure users to external sites, likely for phishing or malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9968

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://allytemp.ru/uplcv?utm_term=bunnicula+test+pdf PDF link annotation
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/247064b24d52af18c0773419a9154298/munobaxixod.pdfIn PDF document text
- https://marblo.ph/app/webroot/img/files/kipamagejewimonuzowuji.pdfIn PDF document text
- http://hosungtour.com/FileData/ckfinder/files/20210702_804044FEFD38651B.pdfIn PDF document text
- https://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/4f37b32fc4344442f061b6b2894b91de/mejegofubonubitoxamituxe.pdfIn PDF document text
- https://aftaplan.com/works/peepsparty/html/upload_files/file/3787459123.pdfIn PDF document text
- http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16086106c483b7---doxupeveniker.pdfIn PDF document text
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/qis784bmhdb9ff0f9kqgsdjte1/73040478620.pdfIn PDF document text
- http://taeguektour.com/FileData/ckfinder/files/20210527_CB00320CFE9E414F.pdfIn PDF document text
- http://fygl.net/uploads/file/271601302867.pdfIn PDF document text
- https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/shuoom2ltimr6dd3eh1q2d058n/midizit.pdfIn PDF document text
- https://tedvandergulik.nl/userimages/file/77165487354.pdfIn PDF document text
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608668eee1ba8---3979465542.pdfIn PDF document text
- http://baigeleather.com/userfiles/file/28712891924.pdfIn PDF document text
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612e43ef09ea0---tabetigigadu.pdfIn PDF document text
- https://egokituz.eus/files/galeria/files/26296932132.pdfIn PDF document text
- http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/4c9vf1u9nv1q62cubeqbhjnrin/21715895227.pdfIn PDF document text
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160878b89e3176---suretinejipojaliton.pdfIn PDF document text
- http://sunil.kr/uploadfile/fckeditor/file/rotalidepibo.pdfIn PDF document text
- https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/160bd0ccd2a701---54228280578.pdfIn PDF document text
- http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160807a2e0ad1b---xakodopatavaxokufure.pdfIn PDF document text
- https://kamarkosong.com/contents//files/2143493354.pdfIn PDF document text
- http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607197496eb16---wekolafewizatekuvezob.pdfIn PDF document text
- https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/3a0aebf3a7bac42a148a73278a183c73/4571377877.pdfIn PDF document text
- http://bowlingkillers.com/imgdb/files/tivegexosisufil.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_off00010233.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10233	10544 bytes
SHA-256: `7106fddf72273bb5f60bc64e4acb757d7495bd56e11e9847cd4034dc2c86a13b`
`font_01_sfnt_off00011a5c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11A5C	18496 bytes
SHA-256: `e0da5799b640d1cc35879ce7ec93eb9aa60288c4073c0acac951e79cca0b4696`
`font_02_sfnt_off00014ac2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14AC2	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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