Malicious PDF — malware analysis report

Static analysis result for SHA-256 0792294d14448934…

MALICIOUS

PDF

79.8 KB Created: 2021-03-10 07:09:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 04c7ac48e746812040015853bce47c8d SHA-1: e137f273510b8d60ed457474fb064c7be3e98703 SHA-256: 0792294d144489342624a9c9fbdeb8c54ded5df4836bdce1b637e28fe0243c94
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links pointing to disposable domains and link farms, a common tactic for phishing or distributing further malware. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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://fokemale.ru/award?keyword=sai+baba+kakad+aarti+lyrics+in+telugu+pdf PDF link annotation
    • https://sifuparara.weebly.com/uploads/1/3/4/3/134352995/dusez.pdfIn PDF document text
    • http://fumexijana.getenjoyment.net/modixutazesedupegibop.pdfIn PDF document text
    • https://kavekoda.weebly.com/uploads/1/3/5/3/135326791/8542961.pdfIn PDF document text
    • http://rexirututesopew.iblogger.org/what_is_the_difference_between_samsung_qled_models.pdfIn PDF document text
    • http://xelibirujegid.mywebcommunity.org/zigaketasitafutus.pdfIn PDF document text
    • https://cdn.sqhk.co/lakekomum/0hdgjjd/9846097134.pdfIn PDF document text
    • https://notilapixoto.weebly.com/uploads/1/3/4/3/134397855/5868958.pdfIn PDF document text
    • http://mitatizizuje.mypressonline.com/autocad_xref_manager_download.pdfIn PDF document text
    • https://cdn.sqhk.co/vigeroti/fAp1Xhj/first_aid_kit_band_emmylou_lyrics.pdfIn PDF document text
    • https://cdn.sqhk.co/tadawatimi/gggTja5/78416237333.pdfIn PDF document text
    • https://cdn.sqhk.co/sebutarukaw/iegihaS/55413083224.pdfIn PDF document text
    • https://kezagoguz.weebly.com/uploads/1/3/4/1/134131769/banoviwivoj_lebixexibabe.pdfIn PDF document text
    • https://zusajozaza.weebly.com/uploads/1/3/1/3/131381142/jaxabelupexip.pdfIn PDF document text
    • https://jubiporosevuzu.weebly.com/uploads/1/3/2/6/132695682/252c0800c0f83.pdfIn PDF document text
    • http://mixezitubut.mygamesonline.org/yashica_minister_d_repair_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/xugavizira/KjageSS/deep_ocean_shark_attack.pdfIn PDF document text
    • http://mufosozewolofar.iblogger.org/how_do_i_start_investing_in_stocks_for_beginners.pdfIn PDF document text
    • https://makifilibavik.weebly.com/uploads/1/3/5/3/135383918/6463574.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zozoramotuwiv.rf.gd/person_who_cant_stop_hiccupping.pdfIn PDF document text
    • http://bumurulepowele.myartsonline.com/32608381605.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/pixuviliridopivajiki.pdfIn PDF document text
    • http://zevizajezu.epizy.com/62118618846.pdfIn PDF document text
    • https://s3.amazonaws.com/timituvupame/zezelozumamenazizede.pdfIn PDF document text
    • https://s3.amazonaws.com/pozokimepe/third_person_singular_worksheets_to_print.pdfIn PDF document text
    • https://s3.amazonaws.com/guxosa/varevejuselub.pdfIn PDF document text
    • https://s3.amazonaws.com/sizadagazagaj/pc_browser_software_free.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_off0000f83c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF83C 5732 bytes
SHA-256: 679a3e8400f04cad0d0be3fa4f47c0e850cec36e48686b8fb4bc4e7527d7036f
font_01_sfnt_off00010bd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BD7 10968 bytes
SHA-256: ded21a462e2a5a2c4987af4635499c9c891e5ad076768753eacf7628b1803cbf

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