Malicious PDF — malware analysis report

Static analysis result for SHA-256 e30bc67e2eb87bf8…

MALICIOUS

PDF

74.5 KB Created: 2021-03-28 16:55:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 1730cf64d2a4816d2976f72e0819680d SHA-1: 5f163bde33496a3b0616da9619c581904360409d SHA-256: e30bc67e2eb87bf8ee077398748125b49c130130ce5289263c4bfb2ab0a99567
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a common tactic for phishing or distributing further malware. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of links, and 'CLAMAV_DETECTION' confirms it is recognized as a phishing/trojan PDF. While no scripts were directly extracted, the presence of embedded URLs and the overall structure suggest an attempt to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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 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.
  • 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://seumenha.ru/strik?utm_term=2020+can+am+outlander+maintenance+required PDF link annotation
    • http://particulier-societegenerale.xyz/cctv_system_installation_guided05rm.pdfIn PDF document text
    • http://changepass.online/ukulele_strumming_patterns_4_4d4fg6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425768/normal_5fcef6bbddf72.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384035/normal_60062a28818aa.pdfIn PDF document text
    • https://tufobedix.weebly.com/uploads/1/3/4/4/134431979/xufezulabur-nesevufedon-duxeluwoperew.pdfIn PDF document text
    • https://saxexowiki.weebly.com/uploads/1/3/0/9/130969873/f344f185b.pdfIn PDF document text
    • http://begemot.space/what_channel_is_newsmax_on_dishbtqv8.pdfIn PDF document text
    • http://kungfumalibu.com/jokeduwiviwepxjaw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482405/normal_604b250991d19.pdfIn PDF document text
    • https://xizenajagixofus.weebly.com/uploads/1/3/4/6/134657686/97935c.pdfIn PDF document text
    • https://dutajedi.weebly.com/uploads/1/3/5/9/135964159/modafutopowaguv.pdfIn PDF document text
    • https://fuwupizur.weebly.com/uploads/1/3/5/3/135390256/riwibifoz.pdfIn PDF document text
    • https://mimevomakiket.weebly.com/uploads/1/3/4/6/134693464/bizexomibepeti_nolanixe.pdfIn PDF document text
    • http://tricitysikhs.com/88616501650kval1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414164/normal_601ca2041d061.pdfIn PDF document text
    • https://munelexogetajax.weebly.com/uploads/1/3/1/4/131437313/bumixunepalawugob.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/neviwove/62115532122.pdfIn PDF document text
    • https://s3.amazonaws.com/tezofuretejom/flower_vector_background_template.pdfIn PDF document text
    • https://s3.amazonaws.com/pibabopuduj/xokupanubifikuweze.pdfIn PDF document text
    • https://s3.amazonaws.com/roxawo/fezedegepidun.pdfIn PDF document text
    • https://s3.amazonaws.com/fezenur/gosakepekilu.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/examples_of_broad_statements.pdfIn PDF document text
    • https://s3.amazonaws.com/bodajaku/minuwopiginonebifi.pdfIn PDF document text
    • https://s3.amazonaws.com/gonima/alberta_student_loans_and_grants_funding_guide.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_off0000e764.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE764 5212 bytes
SHA-256: 62abefa778d3f39a4de41d04451671d0f3099f653381787410ff1a18637155ad
font_01_sfnt_off0000f8f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8F7 10500 bytes
SHA-256: 0a38ad87c174a1c4aaf70c546e1bf045aaf7db8ffdcc6174ae34f67949d4e223

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