Malicious PDF — malware analysis report

Static analysis result for SHA-256 69fee8bcca7e0875…

MALICIOUS

PDF

77.1 KB Created: 2021-03-22 20:30:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 46812313e77353e93b556b4259dfd1a9 SHA-1: ad14b43555c87b7ba7851e6a0e9e25db301fdc43 SHA-256: 69fee8bcca7e087576e0c559ce3d6312855c0b165034e862fe8ede0ec47faebb
126 Risk Score

Malware Insights

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

The ML classifier and ClamAV detection strongly indicate malicious intent. The PDF contains numerous external URIs and is identified as a link farm hosted on disposable domains, suggesting a phishing or malware distribution scheme. The presence of multiple suspicious URLs points towards an attempt to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/strik?utm_term=marshall+jmp-1+preamp+settings PDF link annotation
    • http://8gusevshop.space/382863542908whbx.pdfIn PDF document text
    • https://cdn.sqhk.co/pusuvizodez/2iegigg/jungle_monkeyz_adventure.pdfIn PDF document text
    • http://begezuwoxinum.iblogger.org/33370373320.pdfIn PDF document text
    • http://modernstyle.pro/chavo_del_8_dibujonmh2g.pdfIn PDF document text
    • http://kind-insta.site/54914749457zgb3q.pdfIn PDF document text
    • http://markettop.pro/fuwojamoxunur.pdfIn PDF document text
    • http://carluxepaint.site/vumoziwaw1sf4.pdfIn PDF document text
    • http://koxivesuvif.mypressonline.com/dutelo.pdfIn PDF document text
    • http://marketes.pro/what_does_it_mean_when_your_diesel_blows_white_smokeer2vc.pdfIn PDF document text
    • http://carinsusa.com/robert_monroe_journeys_out_of_the_body_freecb42q.pdfIn PDF document text
    • http://giocodigital.fun/kixuxisojuruwivupetakomd1vbg.pdfIn PDF document text
    • http://dekagexagupeje.iblogger.org/32827283028.pdfIn PDF document text
    • https://cdn.sqhk.co/gipekoma/D6gihaD/legends_of_football_2018.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://memepev.myartsonline.com/cryptocurrency_mining_for_beginners.pdfIn PDF document text
    • http://saxarivoje.onlinewebshop.net/x5_bluetooth_car_kit_manual.pdfIn PDF document text
    • https://2ddedb0e-b7b0-41c9-a8bc-c018bd0e6e4c.filesusr.com/ugd/70094d_0f8be002b7b4456cb3a01e1a8eb2ba6f.pdf?index=trueIn PDF document text
    • http://seromol.epizy.com/what_is_the_purpose_of_an_integrated_literature_review.pdfIn PDF document text
    • https://2987c0f4-171e-4473-b3f1-a5468658115b.filesusr.com/ugd/75ff8a_25867b46acc140b5b0a32d2b0e77357b.pdf?index=trueIn PDF document text
    • http://wigamezula.rf.gd/31930857256.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e085.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE085 5076 bytes
SHA-256: da19a0f36ab7f0712eb1b324d292cd905e3ec7b8e3499aa761354db53327fa8e
font_01_sfnt_off0000f1ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1AD 11772 bytes
SHA-256: 182c09836e060915155aa2b50bf64d4d59680907ce7a67778f0ac9397452bbf6
font_02_sfnt_off000118f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118F3 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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