Malicious PDF — malware analysis report

Static analysis result for SHA-256 55fa09098e5cd714…

MALICIOUS

PDF

87.4 KB Created: 2021-03-18 20:09:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: fc93c2ecfc0b452a396075064ee0da20 SHA-1: a5d83d7deeebd9aa8c57ce30dcf3b22bd5221b79 SHA-256: 55fa09098e5cd71449e419ec8354ffa5f1926f81eeffa90746303dab3e9ff7c0
184 Risk Score

Malware Insights

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

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 0.7401

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.
  • 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
  • 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://dugedepap.ru/strik?utm_term=the+magic+tree+house+books+author PDF link annotation
    • https://cdn.sqhk.co/pibigovaxavu/jdSifBp/cod_loin_recipes_baked.pdfIn PDF document text
    • https://tajewarupimef.weebly.com/uploads/1/3/2/6/132681391/1659884.pdfIn PDF document text
    • https://lafajadisevo.weebly.com/uploads/1/3/1/4/131454770/8851610.pdfIn PDF document text
    • https://cdn.sqhk.co/duwenaxiseve/fnOQpG6/cake_icing_real_3d_cake_maker.pdfIn PDF document text
    • https://daliroxemonove.weebly.com/uploads/1/3/0/7/130775241/pegiziri-xojox-napukuzonofoxef-junerafaje.pdfIn PDF document text
    • https://kisobodowawon.weebly.com/uploads/1/3/1/3/131384145/7f419134b0705.pdfIn PDF document text
    • https://kazumole.weebly.com/uploads/1/3/1/4/131454435/13df34fcd051.pdfIn PDF document text
    • https://cdn.sqhk.co/risenulowo/hV7wgc8/pajirolutonememo.pdfIn PDF document text
    • https://jividakole.weebly.com/uploads/1/3/6/0/136090299/rozexigo_rotowaku.pdfIn PDF document text
    • http://zumewidife.mygamesonline.org/61226016414.pdfIn PDF document text
    • https://fuzimisadu.weebly.com/uploads/1/3/5/3/135319831/zimakagoveduz_jagovapi_pusoronewijez_mazefe.pdfIn PDF document text
    • http://wigageturuv.mywebcommunity.org/gobazokufimojefenajunil.pdfIn PDF document text
    • http://profibrend.ru/tiwiruxegofujubunugibeuv7xj.pdfIn PDF document text
    • http://xirapanagix.getenjoyment.net/ceramic_materials_carter.pdfIn PDF document text
    • http://art-practice.org/chicken_goujons_tesco_halalc4asg.pdfIn PDF document text
    • http://xofofumireke.mypressonline.com/zoom_g11_manuale_italiano.pdfIn PDF document text
    • http://wififeju.atwebpages.com/10657711006.pdfIn PDF document text
    • https://793776f3-68b4-44d3-947a-596ce2c6f652.filesusr.com/ugd/4e977a_5ac5229c71db4c1d90b7eb9b71cf0b47.pdf?index=trueIn PDF document text
    • https://5926284e-b61c-4ed0-95e5-27b9feedd2c3.filesusr.com/ugd/50c35f_39d4baaee05143ddb1448d8640f30eeb.pdf?index=trueIn PDF document text
    • https://13fad4bf-7224-44b3-802b-16842e97d241.filesusr.com/ugd/b14664_1c251ca1620d42abb3b004aa1a086816.pdf?index=trueIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00014d5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14D5C 5192 bytes
SHA-256: d32c0f8165a25c93bf9ed38902807a82a8819d9f453940325328016a94dae6d4

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