Malicious PDF — malware analysis report

Static analysis result for SHA-256 530d31d83250964c…

MALICIOUS

PDF

63.6 KB Created: 2020-11-17 07:58:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 2fe18b5f9dd7687e7bd710239dd59cb0 SHA-1: db606d8a7acd9f8a64da287edfdf77ef1aa5860a SHA-256: 530d31d83250964c4b2682d7a15364d7574736c0d859aeb393cec78905e05911
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://trafffi.ru/strik?utm_term=trimble+m3+total+station+user+manual PDF link annotation
    • https://bisawovetazevel.weebly.com/uploads/1/3/4/6/134613631/lusotetodutukukot.pdfIn PDF document text
    • https://visuxotilan.weebly.com/uploads/1/3/4/5/134593687/7572552.pdfIn PDF document text
    • https://xezinazilasiza.weebly.com/uploads/1/3/4/3/134319357/bugaruv.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/nojof.pdfIn PDF document text
    • https://jedunaxalow.weebly.com/uploads/1/3/1/6/131606453/xedizar.pdfIn PDF document text
    • https://bepikasubezitix.weebly.com/uploads/1/3/4/3/134325559/kudenepatizavepupe.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://uploads.strikinglycdn.com/files/2cc9c923-94d4-45c5-b60f-930c66712657/genius_hour_ppt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd97786a-9869-48c8-ae79-ecf512da0f55/life_in_the_dreamhouse_all_episodes.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/2012_buick_lacrosse_owners_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d34859b9-6021-4e34-8273-a33ead544192/was_ist_justin_bieber_Telefonnummer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/011fdcff-552f-497a-a281-3627d356398e/81414048517.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f10b486e-35a9-4e6a-94ad-7b114abeea69/sizubumefivu.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/lg_lp1015wnr_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/podawakumepewez/kenmore_ice_maker_not_filling_with_water.pdfIn PDF document text
    • https://s3.amazonaws.com/jozetej/hdfc_life_opportunity_fund_performance.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_off0000b05a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB05A 4968 bytes
SHA-256: 332e6d2c894c20eab40beba24207e8f739444c9cb1b053e421ef804e62adb42d
font_01_sfnt_off0000c117.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC117 10068 bytes
SHA-256: 4f23bc66f7db143b33d05474142b59b3951e6655821b9592a7e404d7628e3e94
font_02_sfnt_off0000e35c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE35C 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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