Malicious PDF — malware analysis report

Static analysis result for SHA-256 030b003e58585acd…

MALICIOUS

PDF

73.4 KB Created: 2021-01-05 02:53:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 5aadba721d03190a16c0c505d3a10998 SHA-1: 836d910c20038fc68a3124c23d011881224327eb SHA-256: 030b003e58585acd895b3b0f868438555457882081721ea7dfe1ad1ba8d50987
214 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically 'traffmen.ru'. Additionally, it exhibits a PDF link farm with numerous external links to Weebly-hosted PDFs, suggesting a coordinated effort for SEO manipulation or to distribute further malicious content. The ML classifier strongly supports the malicious verdict.

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/123?utm_term=alaskan+ulu+knife+chopping+bowl+set In PDF document text
    • https://dabelebixoxo.weebly.com/uploads/1/3/5/3/135310161/7451056.pdfIn PDF document text
    • https://panidulupeju.weebly.com/uploads/1/3/0/9/130969186/pawotisexuga.pdfIn PDF document text
    • https://bafovulik.weebly.com/uploads/1/3/1/0/131070506/sisujowi.pdfIn PDF document text
    • https://lofusomibebez.weebly.com/uploads/1/3/2/7/132740423/wesuzotasewizip.pdfIn PDF document text
    • https://vafukomoruf.weebly.com/uploads/1/3/4/8/134862603/7285267.pdfIn PDF document text
    • https://remewizefo.weebly.com/uploads/1/3/1/8/131856163/jezowogabusot_dajuxax_peloxidinivolup_foxilabeleturak.pdfIn PDF document text
    • https://xewulowew.weebly.com/uploads/1/3/4/7/134757629/nuxub.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387433/normal_5f99d5aa73bda.pdfIn PDF document text
    • https://kafuribawixunav.weebly.com/uploads/1/3/4/8/134897544/panipusitomejuzepi.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/didowugorokirug/teamviewer_linux_terminal.pdfIn PDF document text
    • https://s3.amazonaws.com/nakuzafol/creative_resume_format_for_freshers_free.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/galaxy_store_good_lock_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/xapijifas/livogixovefedamisunub.pdfIn PDF document text
    • https://s3.amazonaws.com/leributafa/83968176666.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d637.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD637 5348 bytes
SHA-256: 29b4c05f495bef9596028b9b293897039ea4ca20766cf38af278910c1fb0453c
font_01_sfnt_off0000e879.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE879 10012 bytes
SHA-256: d71a137fd3f9aba173d8ed114b218cb1319501df957b948046a29027e5d1a7b7
font_02_sfnt_off00010ac6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AC6 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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