Malicious PDF — malware analysis report

Static analysis result for SHA-256 22295b211d8ca344…

MALICIOUS

PDF

83.1 KB Created: 2021-08-18 17:27:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-29
MD5: 536d79737774201b94a0b896b6b0ec03 SHA-1: 4c96ff5d11662edc89a3ae0b81c14c19df526dac SHA-256: 22295b211d8ca3442821b8d9e53734c4b18ba4c3c4e89387fec978c760588dc6
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file 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 primary URL, 'https://nomylo.ru/uplcv?utm_term=vidmate+apk+download+latest+version+3.38+for+pc', appears to be a lure for software downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://nomylo.ru/uplcv?utm_term=vidmate+apk+download+latest+version+3.38+for+pc PDF link annotation
    • https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/e68dtcn5upv90h90muiqtne20d/14698859923.pdfIn PDF document text
    • https://ipic.vn/userfiles/file/luguridukebulegepuguwagu.pdfIn PDF document text
    • https://chp-travel.ir/data/file/62198735033.pdfIn PDF document text
    • http://djapm.com/userfiles/file/14225887572.pdfIn PDF document text
    • http://angelescare.com/userfiles/file/77411102319.pdfIn PDF document text
    • http://soft-pro.hr/upload/datoteke/nugaximumib.pdfIn PDF document text
    • http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607337c4e35ce---29552517358.pdfIn PDF document text
    • http://bizbecho.com/pa/trainstation/uploads/image/file/binaritagebaxutanotodag.pdfIn PDF document text
    • http://greenld.com/userfiles/19932983269.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160900d3fd3a51---surufin.pdfIn PDF document text
    • https://immo-cjeanpaul.lu/userfiles/files/tulubanetopa.pdfIn PDF document text
    • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16080310cbc3bc---4141692890.pdfIn PDF document text
    • http://burattinojatek.hu/userfiles/file/linutidazabuxutaziv.pdfIn PDF document text
    • https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/d02db5f75ac98084ab3090443a2dc50f/kizezamej.pdfIn PDF document text
    • https://masihpt2.com/contents//files/tudinetixujubitegajubux.pdfIn PDF document text
    • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ee718b269c9---76195737402.pdfIn PDF document text
    • http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160752c3902536---74628158590.pdfIn PDF document text
    • https://cfi-registration.org/buzzboxgift/img/userfiles/files/95949807161.pdfIn PDF document text
    • http://murphysbeads.com/clients/54316/File/10777144766.pdfIn PDF document text
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/a042a53940f69ad9d7e4e377c20826ad/wavabiniba.pdfIn PDF document text
    • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/f87de8398595df5f23ec826764855124/20774018989.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.

FilenameKindSourceSize
font_00_sfnt_off0000dead.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEAD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f6c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6C4 11440 bytes
SHA-256: 9d8e67def264103b6fb7a9cdebaf22f51edd984d3b4c38af4e275d652bcb6dd3
font_02_sfnt_off000111de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111DE 17076 bytes
SHA-256: 386e985f1bdf247125aa85d56c1670583208bd768db860c8d555ad9b054cc73f

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