Malicious PDF — malware analysis report

Static analysis result for SHA-256 009fb80811409f39…

MALICIOUS

PDF

72.0 KB Created: 2021-03-16 21:25:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 02c8cb50146d162103fad423764ea39c SHA-1: 9a56f155c8758acd3b7d80ba546e1ac3d6105231 SHA-256: 009fb80811409f3970cd9e12031b89e256df965cc469975c98e8d5dfb2a9b2cf
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document exhibits characteristics of a link farm, containing numerous external URIs pointing to potentially malicious sites. Heuristics indicate a high likelihood of malicious intent, with ClamAV detecting it as Pdf.Phishing.Trojan. The presence of many links on disposable hosting suggests an attempt to distribute malware or conduct phishing attacks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://botokaw.ru/strik?utm_term=diary+of+a+wimpy+kid+hardback+box+set PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4427821/normal_5ff4fdeac3f3a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416326/normal_602255330fb2d.pdfIn PDF document text
    • https://tofeniva.weebly.com/uploads/1/3/4/6/134625175/e14fd7ee84.pdfIn PDF document text
    • https://natufebopod.weebly.com/uploads/1/3/4/3/134305275/7293948.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479710/normal_5fc882282d76f.pdfIn PDF document text
    • https://musigimipipo.weebly.com/uploads/1/3/4/4/134470090/lexifumilozizufuzik.pdfIn PDF document text
    • https://wuxinaruniluxod.weebly.com/uploads/1/3/4/8/134882591/4201631.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377697/normal_5fec163d2725a.pdfIn PDF document text
    • http://mexuzekinukogip.iblogger.org/vowabevoterusovudevegis.pdfIn PDF document text
    • https://mojoranazo.weebly.com/uploads/1/3/4/4/134403481/jutafajigo-zudepekuvu.pdfIn PDF document text
    • https://pixizibonemitu.weebly.com/uploads/1/3/1/3/131382366/243605.pdfIn PDF document text
    • http://wolutat.iblogger.org/44183651565.pdfIn PDF document text
    • https://pezilesuwubev.weebly.com/uploads/1/3/4/6/134639222/7d22f1355.pdfIn PDF document text
    • https://gawenowufiwozup.weebly.com/uploads/1/3/1/3/131383543/jurepe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pezukovurarugor.rf.gd/7646212740.pdfIn PDF document text
    • https://2cc3dcad-61c1-4442-8662-ca5be7cd8672.filesusr.com/ugd/71b93f_0f442d3fce4d4def88741ee4bb870ce5.pdf?index=trueIn PDF document text
    • http://nitusubor.rf.gd/letterhead_templates_psd_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a1cf9a4-2b8d-40ea-8fe3-9a4042db5493/2001_kawasaki_vulcan_1500_classic_owners_manual.pdfIn PDF document text
    • https://6d251753-49d0-4f5b-a278-10ed1cacc9d0.filesusr.com/ugd/5c139a_0fb4000ba9264843af22b268b64b049d.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae8dd3e7-1cf5-4492-9bb7-b59f2d0c72bd/past_continuous_tense_exercises_for_grade_5.pdfIn PDF document text
    • https://57fc24c6-ba7c-430a-bdae-05304608b610.filesusr.com/ugd/bc9c68_284b043dff9e4509a92a23a8f4bd92b2.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/3485db28-7e98-46e9-88e8-a16ff22bb40b/75841838746.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99fe4bff-abc2-4011-8955-2bc8deb99d6d/82155116189.pdfIn PDF document text
    • https://734e8db3-b9db-457c-abaa-08c06218e7ae.filesusr.com/ugd/f6bb82_2b7e19c684b849d48a98d5c5f18d90ef.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/28da8451-dd53-423b-94ed-e3e3dbef5713/dodge_durango_intermittent_starting_problem.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_off0000da16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA16 5828 bytes
SHA-256: 47b6b92d73f5ae1ace133e95cd71e965fda5ad9ead74df598c6851e8b07c1a2b
font_01_sfnt_off0000ede7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDE7 10564 bytes
SHA-256: 698134b29f033e96e4eb84e75b6048713917806dc7e65cb78b5a98fd700825af

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