Malicious PDF — malware analysis report

Static analysis result for SHA-256 10a8f20f5a93fea0…

MALICIOUS

PDF

102.8 KB Created: 2021-03-17 16:30:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: f08bbbe44ddff6bebcdaf1dcbd6447ea SHA-1: d3426ac9ee99f148ae357face12fc41166375a73 SHA-256: 10a8f20f5a93fea0e44bbff05e07b70c82f95be298249d7c1f82cc8c15874121
244 Risk Score

Malware Insights

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

This PDF file contains a large number of embedded links, many of which point to known malicious redirectors or disposable hosting. The document body, though heavily obfuscated, appears to be a lure related to 'Moulin Rouge characters names'. The primary goal seems to be directing users to malicious websites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9936

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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://dafemum.ru/wix?keyword=moulin+rouge+characters+names In PDF document text
    • https://cdn.sqhk.co/wujakegu/iaNieii/love_island_2020_where_are_they_now.pdfIn PDF document text
    • http://megoreboboni.22web.org/bicep_muscle_stretches.pdfIn PDF document text
    • http://hargotel.xyz/mofinepdjo7w.pdfIn PDF document text
    • https://zesukixugedun.weebly.com/uploads/1/3/4/5/134593530/dimed-dijodorufi.pdfIn PDF document text
    • http://bumawusuka.mypressonline.com/55396784214.pdfIn PDF document text
    • https://cdn.sqhk.co/rapovixovuti/MjfUgdX/neutron_music_player_apk_pro.pdfIn PDF document text
    • https://wuduzavuvavazi.weebly.com/uploads/1/3/4/6/134618101/xineguvokiro.pdfIn PDF document text
    • http://sikojomur.22web.org/6960979236.pdfIn PDF document text
    • https://defaxudenuged.weebly.com/uploads/1/3/5/2/135293647/2829585.pdfIn PDF document text
    • https://gufonalika.weebly.com/uploads/1/3/4/0/134096228/8626784.pdfIn PDF document text
    • https://cdn.sqhk.co/dosojegomugu/hjgfjjb/ordering_numbers_to_100_worksheet_ks1.pdfIn PDF document text
    • http://tevfikyuce.xyz/559008331924ur4u.pdfIn PDF document text
    • http://helpcopyright-service.com/fargo_hdp5000_driver_update3rvlk.pdfIn PDF document text
    • https://zugatesek.weebly.com/uploads/1/3/6/0/136082504/lonoper_xaxadas_momomirin_zodidavol.pdfIn PDF document text
    • https://cdn.sqhk.co/laxefotogulo/hjehGgg/56080379915.pdfIn PDF document text
    • https://cdn.sqhk.co/pumafuki/xygfHja/zobazokizemaderudoxotul.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://merapenerabari.myartsonline.com/sasejof.pdfIn PDF document text
    • http://kimoviranonaf.onlinewebshop.net/zavedulanuditezosepubi.pdfIn PDF document text
    • https://c78ffd2e-fc3d-4272-86ca-968d835fb7ad.filesusr.com/ugd/0f9ef0_0b387d4185a842aa98ca840f5f22315b.pdf?index=trueIn PDF document text
    • http://nozaleb.rf.gd/zodureditekob.pdfIn PDF document text
    • https://9e705916-5bde-4eb8-be9b-8b3e910fbaf8.filesusr.com/ugd/c7a620_22ff9f3d826049818f4fc3d9db8af849.pdf?index=trueIn PDF document text
    • https://ff87c8b5-ca28-4ac0-94ba-218234037d87.filesusr.com/ugd/1d4e4f_7a6c61075646416987dbdf12f22a3e44.pdf?index=trueIn PDF document text
    • http://gadivedu.rf.gd/la_cimbali_m27_re_manual.pdfIn PDF document text
    • https://2dcb0092-dd22-4cef-90c1-8c398f802bb7.filesusr.com/ugd/ff3115_e7fd67bbe75d41919cc78e35867f189f.pdf?index=trueIn PDF document text
    • https://28ed73df-463f-41d7-bc87-4635118fd8e0.filesusr.com/ugd/74acc8_f5a6a76c7a08440d8b3e997bcccc3982.pdf?index=trueIn PDF document text
    • http://saxogif.epizy.com/87486869753.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_off00014293.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14293 5100 bytes
SHA-256: 832cb9041aecdbd9046fb725a76506dc9407cbedae2b89e262db4ff2fbd1e198
font_01_sfnt_off000153bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x153BD 13064 bytes
SHA-256: 73e17eac9de2daa99bd4a33a12895dcd31730ccdc398bcbf38223738549764a4
font_02_sfnt_off00017f2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17F2C 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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