Malicious PDF — malware analysis report

Static analysis result for SHA-256 9410fdf6a12a0cb0…

MALICIOUS

PDF

85.6 KB Created: 2022-03-29 14:32:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 34ea3d38c72b1f4466a486a2309c90d0 SHA-1: 623cb0c16a2b9b56d2d33a1dca57b445225e6c64 SHA-256: 9410fdf6a12a0cb02eabf7bd1c40bf3a6959a1dbe7a009197787230c1a952a94
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was identified as malicious by multiple heuristics and an ML classifier, with ClamAV detecting it as a phishing trojan. It contains a large number of external links pointing to disposable domains, suggesting a link farm or SEO manipulation tactic. While no scripts were explicitly extracted, the PDF structure and the presence of numerous external URIs indicate an attempt to redirect users to potentially malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://cafij.co.za/YmrXLWy8?keyword=english%20short%20moral%20stories%20pdf PDF link annotation
    • https://zisefedid.weebly.com/uploads/1/3/4/7/134767142/7771227.pdfIn PDF document text
    • https://timokejega.weebly.com/uploads/1/3/4/4/134454798/jixifiroludamuxozuti.pdfIn PDF document text
    • https://bibonuben.weebly.com/uploads/1/3/4/5/134576194/rovilowasem.pdfIn PDF document text
    • https://dibigisilob.weebly.com/uploads/1/3/1/6/131607467/9361244.pdfIn PDF document text
    • https://xoxomegu.weebly.com/uploads/1/3/4/7/134724284/tevikisonoxi-lekamudiwalu.pdfIn PDF document text
    • https://tebojejuket.weebly.com/uploads/1/3/4/7/134764489/7632481.pdfIn PDF document text
    • https://lemoximut.weebly.com/uploads/1/3/7/5/137516849/nadagabebizonalo.pdfIn PDF document text
    • https://nelejezubifub.weebly.com/uploads/1/3/1/4/131406077/2256081.pdfIn PDF document text
    • https://suxeruto.weebly.com/uploads/1/3/4/6/134665584/vumuwirun_saronawegesuxi_diwubuw.pdfIn PDF document text
    • https://pozategon.weebly.com/uploads/1/3/2/6/132695347/8266156.pdfIn PDF document text
    • https://pafekirikigu.weebly.com/uploads/1/3/4/5/134590200/xejusele.pdfIn PDF document text
    • https://nimifitirujaga.weebly.com/uploads/1/3/4/6/134693460/fexovowifekewefezar.pdfIn PDF document text
    • https://viledilexemapol.weebly.com/uploads/1/3/4/6/134698440/383030.pdfIn PDF document text
    • https://gonubogebedop.weebly.com/uploads/1/3/4/8/134886664/49f81d364f.pdfIn PDF document text
    • https://zesalefol.weebly.com/uploads/1/3/5/9/135994098/a4c3d8.pdfIn PDF document text
    • https://jatuzoxoj.weebly.com/uploads/1/3/4/6/134682234/99712ae70775d35.pdfIn PDF document text
    • https://vewufozokan.weebly.com/uploads/1/3/1/0/131071297/segivalivinitegi.pdfIn PDF document text
    • https://zukugobewumebol.weebly.com/uploads/1/3/4/0/134017275/1917462.pdfIn PDF document text
    • https://tewazaxapij.weebly.com/uploads/1/3/4/8/134873756/7104412.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_off0000edd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDD2 16888 bytes
SHA-256: c436ddc17954ae1f253d7c9cfed3cddc6e916f92b5c69b82e85664b08f96aafd
font_01_sfnt_off0001199d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1199D 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00013041.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13041 10928 bytes
SHA-256: 1e7f4e63d92f82b0b0347bacb6bcf17047ac5be7f2560dd29cc91ff32cd88504