Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa835ba1dfa59c24…

MALICIOUS

PDF

77.7 KB Created: 2022-04-13 02:51:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 4609ca509b35bf4b483fb9a58962b1d2 SHA-1: d381f41432064e106f5addcacafc66bb2f1147b4 SHA-256: aa835ba1dfa59c2470cbc585938e0713ce6eea5edbf60fd37dcd914057c55db8
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://yubit.co.za/YmrXLWy8?keyword=how%20do%20i%20find%20the%20zip%20code%20plus%204 PDF link annotation
    • https://jopomewimedadi.weebly.com/uploads/1/3/4/4/134465277/kaxoj.pdfIn PDF document text
    • https://wisolowiguwo.weebly.com/uploads/1/3/4/6/134630140/bijunisoza_ratagorevozun_kakulefomijelo_divexix.pdfIn PDF document text
    • https://kogimejazasopuj.weebly.com/uploads/1/3/4/7/134713999/2b177374f35f0a8.pdfIn PDF document text
    • https://kajibelewori.weebly.com/uploads/1/3/4/3/134307873/fovidemilupalar_bebowikusebe_fiditune.pdfIn PDF document text
    • https://faromemexe.weebly.com/uploads/1/3/5/3/135399009/nugotobogasaj.pdfIn PDF document text
    • https://gawidosenadipag.weebly.com/uploads/1/3/1/0/131069875/84435.pdfIn PDF document text
    • https://gobadinemi.weebly.com/uploads/1/3/5/2/135299992/sidesu.pdfIn PDF document text
    • http://testwebb.net/kcfinder/upload/files/62373140263.pdfIn PDF document text
    • https://vajdasaraegyesulet.hu/kcfinder/upload/files/76618838728.pdfIn PDF document text
    • https://babotiditufo.weebly.com/uploads/1/3/4/6/134694550/8561898.pdfIn PDF document text
    • http://sotel-perm.ru/site/file/67366378102.pdfIn PDF document text
    • http://comercialardevolana.net/admin/kcfinder/upload/files/regum.pdfIn PDF document text
    • https://xajaxosu.weebly.com/uploads/1/3/5/3/135304217/sujulewutosek.pdfIn PDF document text
    • https://marlschuz.com/userfiles/files/gojozurigakimamipo.pdfIn PDF document text
    • http://xn--365-pn7mwb654m2qn.com/ckupload/files/fedesoduxasasawisuw.pdfIn PDF document text
    • https://zadivodewereb.weebly.com/uploads/1/3/2/6/132683121/refiz_jeluxunuja_jebozuwirowetor.pdfIn PDF document text
    • https://tubosulitina.weebly.com/uploads/1/4/1/3/141377239/451d969f.pdfIn PDF document text
    • http://e-sheremet.com/img/dolotegufasaxo.pdfIn PDF document text
    • http://integrotech.eu/zdjecia/file/65634622121.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_off0000ca2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA2C 10768 bytes
SHA-256: 7bf2a8a25374885be0e9f1322b0a5d874af28e8ad8c1adbcbb4ff83a6a5c225a
font_01_sfnt_off0000e2ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2EE 17484 bytes
SHA-256: 5d13ba79e9b4912e1d3c1346aa353339e6928802c45bb2c459e2245b2736a2b0
font_02_sfnt_off00011091.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11091 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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