Malicious PDF — malware analysis report

Static analysis result for SHA-256 01a9044f02dc046e…

MALICIOUS

PDF

84.0 KB Created: 2021-07-04 02:49:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: abd4b7c97349dfe6ffafe8a425aa0fac SHA-1: e9186206f95b5ff6ad09148f7cdc9633e4334a17 SHA-256: 01a9044f02dc046e8389534a31dd43696dc4b20d32c75ef8f059555df91cb1af
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier indicating a high probability of maliciousness. It contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution campaign. The presence of external URIs and link farms indicates an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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://huntic.ru/uplcv?utm_term=wc+3+reforged PDF link annotation
    • http://liburnia.pl/userfiles/file/32965704666.pdfIn PDF document text
    • https://www.ppmcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/uvqv5fv0b2vcbl99lls03sd7lo/nameliped.pdfIn PDF document text
    • https://www.kasekimi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081ca91660d2---lowizejipezikuzikeburajuf.pdfIn PDF document text
    • https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606d83f820fd6---safenifixowafuwuneviw.pdfIn PDF document text
    • http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b44d89dfe66---wekezumalalevegixivowu.pdfIn PDF document text
    • http://sl-light.ru/design/img/upload/file/xinexedipobumasaxaje.pdfIn PDF document text
    • https://acgroupenterprise.com/userfiles/file/10061090544.pdfIn PDF document text
    • http://afgventuregroup.com/cfiles/file/83445680668.pdfIn PDF document text
    • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070a1d0d025a---6231782413.pdfIn PDF document text
    • https://www.sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/160877ba3e4daf---kebapulupetus.pdfIn PDF document text
    • http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1607d19d2c0e2b---jopivenixonuzuw.pdfIn PDF document text
    • http://arebiatours.com/uploads/files/64142116036.pdfIn PDF document text
    • https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/2587f9be1c8325abb84155d419fd7bd8/vekelunaravi.pdfIn PDF document text
    • http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/160a63bdbeb31f---24199194686.pdfIn PDF document text
    • https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/160cd421f4a2cd---sigeroxezufijapumup.pdfIn PDF document text
    • http://kgmda.com/upload/files/pijidete.pdfIn PDF document text
    • https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b54a3b1ad4f---zapizuli.pdfIn PDF document text
    • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160ba251959e89---47231197535.pdfIn PDF document text
    • http://lapenya.cat/imgjovesnaves/file/51224077878.pdfIn PDF document text
    • https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/i8ker06522rq0ipc4hih6h5ib2/tasokesiwikusexawebofukuz.pdfIn PDF document text
    • http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16079c41b2394b---26458135133.pdfIn PDF document text
    • http://hebammenglueck.de/ckfinder/userfiles/files/fuzonadofejerunidebubavi.pdfIn PDF document text
    • http://dodici12.ru/wp-content/plugins/super-forms/uploads/php/files/grcd2r9f5sa0o30sqastq86ru6/3499361424.pdfIn PDF document text
    • http://autohondl.cz/userfiles/file/55628632144.pdfIn PDF document text
    • https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/035d5f0c126ec47626dbf0009b24dec8/zileto.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_off0000dd37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD37 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f549.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF549 21508 bytes
SHA-256: f3aa7babff3160c1c5681c75dbf4afd09a7367f39eb657d37040abeec2c075c0
font_02_sfnt_off00012a84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A84 10144 bytes
SHA-256: abb714ca0eeb8bea7f5d833fbfb01430a61f348401ed2d1e196c745278d5aabd