Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb3e4e179ad58d82…

MALICIOUS

PDF

76.6 KB Created: 2021-02-25 05:41:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 5c8fc2fae2a2e361de6cafbf864f7dbe SHA-1: 704dae64b709c63ffd23f95126cc611cfc9002e1 SHA-256: eb3e4e179ad58d8223b3c1f8835c0a2751f3a8a9a312f102467007eba7c30402
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs and is flagged as a link farm on disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the presence of external URIs and the overall structure point towards a malicious document designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/strik?utm_term=ht+ct780+sony PDF link annotation
    • http://talakam.space/950309514501y22x.pdfIn PDF document text
    • https://soxagunolipug.weebly.com/uploads/1/3/4/8/134887217/4158871.pdfIn PDF document text
    • http://alania365.ru/buxozifuvigoslyq8t.pdfIn PDF document text
    • https://dituvilabo.weebly.com/uploads/1/3/4/8/134897320/e3cae89dc590.pdfIn PDF document text
    • https://cdn.sqhk.co/nosimasiv/1shbjjp/marshalls_home_goods_hours.pdfIn PDF document text
    • https://cdn.sqhk.co/tipadasa/ign7XyY/gubajuna.pdfIn PDF document text
    • https://cdn.sqhk.co/jevipugirofi/ifTnjgI/lixifoxulipitexu.pdfIn PDF document text
    • http://axecheat7.xyz/garmin_g600_for_salejtt1x.pdfIn PDF document text
    • http://hookup153.site/dudofemuworonexv6h.pdfIn PDF document text
    • https://niresofet.weebly.com/uploads/1/3/2/6/132682193/jenonavebilimir.pdfIn PDF document text
    • http://winovigamaj.mygamesonline.org/36557706482.pdfIn PDF document text
    • https://poxomovuru.weebly.com/uploads/1/3/1/3/131381772/dewuxe.pdfIn PDF document text
    • http://wemuwetafivaxe.sportsontheweb.net/sasavirigonuvurid.pdfIn PDF document text
    • https://cdn.sqhk.co/xubuzivo/jf0gchj/12287444884.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375894/normal_5feea39f40c8f.pdfIn PDF document text
    • http://tixesikixux.mygamesonline.org/56207497884.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
    • https://s3.amazonaws.com/sevoga/anno_1800_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/jusagi/grocery_list_maker_excel_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_off0000e40e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE40E 4556 bytes
SHA-256: e8c622a313ecfad6c57786df71b1110762cc5598944e03b96e0b990e86b43e70
font_01_sfnt_off0000f393.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF393 10536 bytes
SHA-256: d0eb1d23ce0d58a19e58e9cc27259184716287d309b92f0a2bdff81b25259ee2
font_02_sfnt_off00011724.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11724 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

Open this report in the interactive analyzer, or submit your own file for analysis.