Malicious PDF — malware analysis report

Static analysis result for SHA-256 0748093ad1f227f4…

MALICIOUS

PDF

79.9 KB Created: 2021-01-18 12:39:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 438f44235f00c15e1a1ffca74fecb33f SHA-1: 6baeae3315d12314465e83bb51f8e3c94aec11ce SHA-256: 0748093ad1f227f427025b0cd098ba2145e7b230a0fc01646c43c729d4e40658
214 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, many pointing to redirectors and link farms, indicating a phishing or malware distribution attempt. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' strongly suggest malicious intent. While no scripts were explicitly extracted, the nature of the embedded links and the ML classification point towards a malicious document designed to redirect users to 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://traffmen.ru/aws?utm_term=clear+saved+passwords+chrome+android In PDF document text
    • https://cdn.sqhk.co/worupageke/qDjibY4/pounds_to_canadian_dollars_calculator.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416659/normal_5fa60c05cce13.pdfIn PDF document text
    • https://cdn.sqhk.co/vekuperik/hkgjzhe/critical_survival_desert_shooting_game.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480582/normal_5fcb70b4ac338.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvexudid/hJ7N0hg/temowajavuvakexu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467298/normal_5fbebfa8a53b4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462730/normal_5ffcfe96ecf86.pdfIn PDF document text
    • https://cdn.sqhk.co/difigobon/xjaqUhj/the_battle_cats_hack_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/menasimax/hajfUgg/voxuperememituwelu.pdfIn PDF document text
    • https://supenavasude.weebly.com/uploads/1/3/5/3/135397397/poxim_wavulimita.pdfIn PDF document text
    • https://nipujari.weebly.com/uploads/1/3/1/3/131384055/12f492427.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402533/normal_5fee704678a9a.pdfIn PDF document text
    • https://cdn.sqhk.co/danopefasuf/Cjcjayo/90817681413.pdfIn PDF document text
    • https://cdn.sqhk.co/zatuwifezub/dicScje/34077966816.pdfIn PDF document text
    • https://cdn.sqhk.co/mapezagul/zxIijA1/zomisixenewedobimuregoji.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/takurugilij/redotojifozatefodewivewa.pdfIn PDF document text
    • https://s3.amazonaws.com/zerepuzuze/tofesutegagaraz.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/abdominal_trauma_guidelines_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/pokorevalaxex/587778396.pdfIn PDF document text
    • https://s3.amazonaws.com/sagotomagin/tukorasevojivezejejevibot.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_off0000ea54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA54 5196 bytes
SHA-256: bf27904c689fb6f7d0b7661807e08d4e9d49d965186e352d33938024e2d769fd
font_01_sfnt_off0000fbe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBE3 12380 bytes
SHA-256: a6f3c70492237793e2321d72f44a43991187b354f145c7aca120fb40c6da4ec1
font_02_sfnt_off00012437.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12437 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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