Malicious PDF — malware analysis report

Static analysis result for SHA-256 76dee1f8ad2d7d30…

MALICIOUS

PDF

70.0 KB Created: 2021-02-16 07:57:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d9a952281330cb871be17af87e9782eb SHA-1: a95b6065497639b147c4502b9ba74612e5fe4a57 SHA-256: 76dee1f8ad2d7d305f1e499b6257c5f2650c84f8bb61c14ee99617ed871ddc1b
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/wix?keyword=airtel+data+plan+unlimited PDF link annotation
    • https://cdn.sqhk.co/rafumufo/ib5B0Xk/newegg_cyber_monday.pdfIn PDF document text
    • https://vopupina.weebly.com/uploads/1/3/1/0/131070761/ganamurawikujer-titonu-joxisi.pdfIn PDF document text
    • https://wadasazaba.weebly.com/uploads/1/3/3/9/133999184/8315954.pdfIn PDF document text
    • https://cdn.sqhk.co/vumivatuvi/ji63hiQ/mokagulagivulipuvoximi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417040/normal_5ff0cd130e289.pdfIn PDF document text
    • https://ritewelikuwu.weebly.com/uploads/1/3/4/4/134493798/lunatu_dofim.pdfIn PDF document text
    • https://cdn.sqhk.co/jarogofef/aMgcghb/dakiwatolo.pdfIn PDF document text
    • https://pekumovulimezel.weebly.com/uploads/1/3/4/3/134363026/948285.pdfIn PDF document text
    • https://cdn.sqhk.co/fusojafiza/QQjhgcs/witivesusatepuberiri.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490754/normal_60120e531e719.pdfIn PDF document text
    • https://cdn.sqhk.co/pefapalotux/gUia15O/76551367014.pdfIn PDF document text
    • https://cdn.sqhk.co/datolabevev/b4jfRja/69834257593.pdfIn PDF document text
    • https://kenemujawov.weebly.com/uploads/1/3/4/6/134645985/9817a836c8188.pdfIn PDF document text
    • https://namunoxup.weebly.com/uploads/1/3/5/3/135339392/1727568.pdfIn PDF document text
    • https://cdn.sqhk.co/parapirer/idihqfm/samurai_mask_tattoo_forearm.pdfIn PDF document text
    • https://cdn.sqhk.co/leluforeref/iiIjfgf/kilurewikorixazawelubep.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/honeymoon_lana_del_rey_album.pdfIn PDF document text
    • https://s3.amazonaws.com/niwotipugonuvoz/suwugatapamidazerut.pdfIn PDF document text
    • https://s3.amazonaws.com/tinivukedeta/chhattisgarhi_song_new.pdfIn PDF document text
    • https://s3.amazonaws.com/dalava/jegiregofu.pdfIn PDF document text
    • https://s3.amazonaws.com/vikukinumet/70965614738.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d664.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD664 4916 bytes
SHA-256: a52d68c81ce4854818247a7700e2258ec894ca12844fc73a283194f7c8479263
font_01_sfnt_off0000e703.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE703 10524 bytes
SHA-256: bc936f6a028345450bffd853390ee54d5d4f589d6136c9fce2c3e2ea010f4361

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