Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6a478d6daf801e2…

MALICIOUS

PDF

77.8 KB Created: 2021-04-04 15:20:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 515aff1459ce99129964b20b9fe3efdd SHA-1: a75d956db08b1bbbdb61f314603e61a15e423b5b SHA-256: a6a478d6daf801e23471f6014d2daa071c46ab9d903087dc79b85a009561845e
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous embedded URLs, with one specifically pointing to a link farm on disposable hosting, suggesting an attempt to redirect users to malicious content. The document body, though heavily obfuscated, appears to be a lure related to installing a sprayer hose.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://soxebez.ru/aws?utm_term=how+to+install+delta+quick+connect+sprayer+hose PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4403262/normal_5feb1995135ee.pdfIn PDF document text
    • http://jizimawaguda.22web.org/76300100589.pdfIn PDF document text
    • http://noncomform.space/android_studio_adb_obsoletenke6x.pdfIn PDF document text
    • http://tradebot.space/kakimezegora897qe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412774/normal_5fd8475b55262.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421623/normal_5fcaf23676ae5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365612/normal_5fe0b2e45df87.pdfIn PDF document text
    • http://puwofipafemuvif.22web.org/31172780004.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://12c9c681-cafc-4f88-93da-cb6f471fd49a.filesusr.com/ugd/f09a9d_890c6ee0cdb64215be5ad1ec02b1a376.pdf?index=trueIn PDF document text
    • https://3abcc933-4059-444f-8e65-7077e95f005f.filesusr.com/ugd/44645f_921fad500310404bb64fc351d533aeb2.pdf?index=trueIn PDF document text
    • http://bidanata.rf.gd/eiscotm_tall_form_borosilicate_glass_beakers.pdfIn PDF document text
    • http://solujenujaki.epizy.com/projected_cash_flow_statement_template.pdfIn PDF document text
    • https://c5c1e25b-3ca9-4f8f-aecb-0ee3b29cb37b.filesusr.com/ugd/f4fe7b_abaf47e3abbf4982972ed41254fa62f7.pdf?index=trueIn PDF document text
    • http://bujoginivela.epizy.com/cadet_recruitment_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/sutawowirosuvuv/xekunanupeboxikasulo.pdfIn PDF document text
    • http://gagarereforer.epizy.com/strategic_advertising_management_fourth_edition.pdfIn PDF document text
    • http://vemewef.rf.gd/90986021900.pdfIn PDF document text
    • https://6f8cb219-4830-455d-9ced-b55e65700e85.filesusr.com/ugd/fd30ac_6e3b878faf76423cb18ee3d7294c15ba.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/migivewuwe/nufepukovekamegodar.pdfIn PDF document text
    • http://kizarepopudoso.epizy.com/fugexufidijuxopewejesome.pdfIn PDF document text
    • https://b634734f-67aa-4edc-9b69-dcf7610e4690.filesusr.com/ugd/c86859_9f159bacc89d45909b31eac97d476e2e.pdf?index=trueIn 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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f32f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF32F 5508 bytes
SHA-256: 8907467eb53515d54dcd80f666fbe8bc3002988ee0f1fd96cb1045469828fdbd
font_01_sfnt_off000105f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105F7 10596 bytes
SHA-256: 44d29dc1e3f145164c3e4752af254f979295cfa1d0204dcc76b5d296d255d8d5

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