Malicious PDF — malware analysis report

Static analysis result for SHA-256 96cad60500111def…

MALICIOUS

PDF

78.4 KB Created: 2021-02-16 04:53:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 2ba75f3cd8961bcb2af83cff4ae4a3d2 SHA-1: cd7b1509988023b478b4d1d0da59364b4045704b SHA-256: 96cad60500111def2452b254d9ba22aafdae92d0c58ebc56d331f89e402bb81c
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, many of which point to disposable hosting domains, indicating a link farm or phishing operation. The ML classifier and ClamAV detection strongly suggest malicious intent. The primary URL, 'https://baarspo.ru/strik?utm_term=pokemon+light+platinum+guide+pdf+download', is presented as a lure for a guide download, but leads to a network of other PDF links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/strik?utm_term=pokemon+light+platinum+guide+pdf+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4464067/normal_60123522c824e.pdfIn PDF document text
    • https://cdn.sqhk.co/pobumepova/iiiehat/88451315709.pdfIn PDF document text
    • http://5coupon.info/adobe_indesign_cs6_for_windows_7wk4k4.pdfIn PDF document text
    • https://cdn.sqhk.co/zejizoguzut/jqhcNha/96318308552.pdfIn PDF document text
    • https://zugimawaxudal.weebly.com/uploads/1/3/1/4/131410952/fazubomavo.pdfIn PDF document text
    • https://panikudar.weebly.com/uploads/1/3/1/4/131437701/risiz_wedosolepadogov_ropozitididupi_xodudasunoxor.pdfIn PDF document text
    • https://femovoba.weebly.com/uploads/1/3/0/7/130775826/34edc2b88c5.pdfIn PDF document text
    • https://matiposokatogu.weebly.com/uploads/1/3/0/7/130739068/4772578.pdfIn PDF document text
    • https://cdn.sqhk.co/jogepirar/ieibYid/wrecking_ball_lyrics_mother_mother.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489599/normal_601db57834239.pdfIn PDF document text
    • https://cdn.sqhk.co/dabozijide/hiibha5/pimple_like_bump_on_balls.pdfIn PDF document text
    • http://dudipoviju.22web.org/crusader_kings_2_holy_fury_guide.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wokofidikud.epizy.com/tegeguseli.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/bihar_board_online_form_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxutedi/wijewomufitigovisezudapo.pdfIn PDF document text
    • http://tawenaxogiminax.epizy.com/70482128739.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_off0000f553.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF553 5340 bytes
SHA-256: e5b1fbcaa85077ca35a89b73526e5e78b870d5320d4a1b53d7a4791fcfb618ee
font_01_sfnt_off00010775.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10775 10836 bytes
SHA-256: 348e13ab4e7b2f70403744646b574a84c2886df125e3607c13c61e2094eef98d

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