PDF malware analysis — malicious · d7c2eaca7f7596de

MALICIOUS

PDF

87.7 KB Created: 2021-07-02 07:54:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12

MD5: 2eecce106c51c35461a77b32ee120583 SHA-1: 6f9bea3151a08c43b8e4be4a35105d50aa04e5e5 SHA-256: d7c2eaca7f7596def5c58c533a8b4dcf192f61c238323c3a265e30357b6bdde8

184 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Multiple heuristics point to the document being a link farm hosted on compromised or disposable domains, designed to trick users into downloading further malicious content. The presence of a 'download button' lure and callback phishing indicators further supports a phishing or scam-related attack pattern.

Machine Learning

Nyx PDF Classifier malicious score 0.9942

Heuristics 8

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.
Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/f1031828774b98449f201387f7cdce11/18669944650.pdf In PDF document text
- http://beiwendq.com//data/attachment/file/pefabutonobalemibuxapubes.pdfIn PDF document text
- http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160c2cc8e8eabf---xogajajudu.pdfIn PDF document text
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606d227af3bf3---63689975826.pdfIn PDF document text
- https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/cee9fd9d189433f6538b1759defd58ee/96586363514.pdfIn PDF document text
- https://takeorders.online/wp-content/plugins/super-forms/uploads/php/files/qshhq7h7ddo1jaadbdrot8dplo/xovuxazokenopobawe.pdfIn PDF document text
- https://shared401k.com/wp-content/plugins/super-forms/uploads/php/files/22dfea9777467034f12cb48befc0b5bd/ziwokokamitibadufuku.pdfIn PDF document text
- http://www.tiande-global.com/ckfinder/userfiles/files/60889236174.pdfIn PDF document text
- https://yziact.fr/wp-content/plugins/super-forms/uploads/php/files/pdckbogcoghd0sot2p3c0u8uc4/22988350359.pdfIn PDF document text
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607ddf8481dc1---10382837293.pdfIn PDF document text
- https://www.axelendinggroup.com/wp-content/plugins/super-forms/uploads/php/files/fd368abe37988fa976ab05f619eb565d/kamikuxusatitumeboje.pdfIn PDF document text
- http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160d949872257e---vivarofagoguzavowuvidosoj.pdfIn PDF document text
- http://2016montemayorreunion.com/clients/e/e5/e530e98a7ee505477716bae2fe71cdef/File/tusinasukujuxuxapikolan.pdfIn PDF document text
- https://elpmarketing.ca/wp-content/plugins/super-forms/uploads/php/files/bf95abfc3cdd6954ff171954c92bf737/gaxakazuvosilij.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8d98a42207.pdfIn PDF document text
- http://www.allatpatikapecs.hu/images/file/zijuwabaju.pdfIn PDF document text
- http://konemara.hu/userfiles/file/71142936805.pdfIn PDF document text
- https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16076bc7436ff6---25648593399.pdfIn PDF document text
- https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d8a36dcccb---66306739819.pdfIn PDF document text
- http://akcjonariusz.com/UserFiles/file/tejesivirir.pdfIn PDF document text
- https://alkalacarservice.com/public_html/userfiles/file/90818617951.pdfIn PDF document text
- http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/9a83c99d6bc31207aafbee7edd40e721/gekemulot.pdfIn PDF document text
- https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160a67f9e09898---25602454203.pdfIn PDF document text
- http://upoart.com/ckfinder/userfiles/files/golidosag.pdfIn PDF document text
- http://charivne.info/images/file/zitobasagilujorojo.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=cbse+english+textbook+answers+for+class+7PDF 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_off0000f23e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF23E	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off00010a50.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10A50	17360 bytes
SHA-256: `138759f8aa3aa8d531a55b5c3941d9c79684e79591d74f7d84b61567dffb4018`
`font_02_sfnt_off00013769.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13769	11116 bytes
SHA-256: `454052f7c2e66b012acb5bb49dd909691dc1c7cd7089437408ad603889bcaac6`

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