Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc9c127e6687c8c8…

MALICIOUS

PDF

70.0 KB Created: 2021-03-05 04:14:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e21d8b1897f58e0404f2d945481fe75d SHA-1: caf294fbe0084e32d9e17081713701fc21874f4b SHA-256: cc9c127e6687c8c802f0daccc3111c4a13d61909e799d63d94827b03f34738b6
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://maypoin.ru/wix?keyword=photosynthesis+practice+worksheet PDF link annotation
    • https://cdn.sqhk.co/ramidazumiko/MifjerS/pomalipaxebevepaxovejugi.pdfIn PDF document text
    • http://dadosib.22web.org/mufexosikumapitor.pdfIn PDF document text
    • http://fullstacket.online/myers_briggs_personality_percentage_breakdowno7nzf.pdfIn PDF document text
    • http://loberas.22web.org/file_transfer_app_for_windows_to_android.pdfIn PDF document text
    • https://kevanosum.weebly.com/uploads/1/3/0/9/130968994/lawajerulujepebija.pdfIn PDF document text
    • https://cdn.sqhk.co/vamunidibu/uhaVgeU/46550405134.pdfIn PDF document text
    • http://sozetil.66ghz.com/apa_referencing_guidelines.pdfIn PDF document text
    • https://cdn.sqhk.co/nikazurokuv/idthjii/yellow_cake_recipe_with_buttermilk_and_oil.pdfIn PDF document text
    • https://cdn.sqhk.co/baxotonad/ejbsWhg/sapuvoma.pdfIn PDF document text
    • https://cdn.sqhk.co/gozawelesutu/caiajai/dragon_raja_director.pdfIn PDF document text
    • https://kefomituwo.weebly.com/uploads/1/3/2/8/132815939/najufegerugo.pdfIn PDF document text
    • https://cdn.sqhk.co/vuvesanap/0jjgcuo/85851473332.pdfIn PDF document text
    • https://cdn.sqhk.co/pinofizulag/fAliigf/lodug.pdfIn PDF document text
    • https://gazobibulome.weebly.com/uploads/1/3/4/7/134775133/kajonemal_gusigefafesu.pdfIn PDF document text
    • http://verification-help.business/nelusamowowkc0ma.pdfIn PDF document text
    • https://bujivopipagafo.weebly.com/uploads/1/3/5/3/135321681/1119545.pdfIn PDF document text
    • https://sesirolomozanu.weebly.com/uploads/1/3/2/7/132741009/9355134.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://forubav.rf.gd/du_admission_form_2019_for_bsc.pdfIn PDF document text
    • http://putesedesupelo.epizy.com/18327168808.pdfIn PDF document text
    • http://noxikemudenuma.epizy.com/kuzekazubevoreje.pdfIn PDF document text
    • http://mafujerodise.epizy.com/free_business_letter_heading_template.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_off0000cdcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDCB 1684 bytes
SHA-256: a8640cb23b15ac802f89dd0648c07b7ad030d8b62c5f78624c3814794ace58c4
font_01_sfnt_off0000d62f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD62F 5248 bytes
SHA-256: 68f537804bb697e2bd56cb3559eb691c8f184dee47e460dbeb3790b2dfaf2995
font_02_sfnt_off0000e815.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE815 10028 bytes
SHA-256: de45b74849972699894429827f81bb6ea12e50fc9ef28682953c56756964ebc2

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