Malicious PDF — malware analysis report

Static analysis result for SHA-256 01ee3eb719a69e69…

MALICIOUS

PDF

83.3 KB Created: 2021-09-16 08:33:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 3d9485ee97883869f12c21a0a6a87044 SHA-1: 8748950d646e1a92698f4649deaf8aed8e97c3ff SHA-256: 01ee3eb719a69e69a2b80c8b18ac175bc11bb00332025a4482bc03b01b6c3468
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm with numerous disposable domains, a common tactic for phishing and malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and URL patterns suggest it is designed to trick users into downloading further malicious content, likely through a deceptive download button or link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://adikmanis.com/contents/files/pusawamajevizesewi.pdf In PDF document text
    • http://covina.crazyrockinsushi.com/uploads/files/68275620248.pdfIn PDF document text
    • http://446888.top/userfiles/file/ziponogipatatizapebeb.pdfIn PDF document text
    • https://sunwayhk.com/louis/STARKGROUP/ckfinder/userfiles/files/94140821592.pdfIn PDF document text
    • http://hsaltsj.com/uploads/files/vokiwuvorilavi.pdfIn PDF document text
    • http://uran-berlin.com/userfiles/file/lovusiwuwukimivotelobob.pdfIn PDF document text
    • http://meuble-tunisie.com/userfiles/file/5491382601.pdfIn PDF document text
    • http://mrcookie.tw/upload/editor/file/051728561057.pdfIn PDF document text
    • https://www.bevillelecomte.com/ckfinder/userfiles/files/53010991332.pdfIn PDF document text
    • http://thietbiytedaibao.com/media/files/fugodada.pdfIn PDF document text
    • https://pracowniatechart.pl/fckpliki/file/fefogukuvoza.pdfIn PDF document text
    • http://ersenergy.com/UserFiles/file/kodupiwipugebatane.pdfIn PDF document text
    • http://avsa.org/sites/default/files/images/files/telenobanivuwivorab.pdfIn PDF document text
    • https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/fd5aa716b5dd673add8b1b6dbd456f5e/28376408882.pdfIn PDF document text
    • http://ohana1bbq.com/uploads/files/87571215143.pdfIn PDF document text
    • http://mayepnuocmia.vn/data/ckfinder/files/29028797930.pdfIn PDF document text
    • https://emartdeko.pl/galeria/file/3893221574.pdfIn PDF document text
    • http://tochuchoinghi.org/files/61568394595.pdfIn PDF document text
    • http://xn--or3bo5mvlb.com/data/editor/file/52966876335.pdfIn PDF document text
    • https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/a2e6f9725b7380c7f340d7859e770484/73397952362.pdfIn PDF document text
    • https://anhhuynoithat.com/asset/files/reluzimufesivuji.pdfIn PDF document text
    • http://elitvorota.ru/f/file/33011826768.pdfIn PDF document text
    • https://liepasmuiza.lv/userfiles/library/fipaked.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=sniper+3d+mod+apk+unlimited+money+and+gems+and+energy+download+2020PDF link annotation
    • 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_off0000dd4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD4F 11616 bytes
SHA-256: a3c9c0c136dc8ff9c9b6281d588d47f951bd34f93d5415627182588a4f8e87fd
font_01_sfnt_off0000f8d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8D5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000110e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110E7 17708 bytes
SHA-256: 5bfd802c473846a040a0890daea3f0bd466c3840d344de3abfff221e7b4db875