Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0a10049ab5bfc41…

MALICIOUS

PDF

125.0 KB Created: 2021-04-08 04:10:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 4d38153d7952696ea0593f040f00f5e4 SHA-1: 9714ea041953b034ce878ed3f96573a56ae109c5 SHA-256: a0a10049ab5bfc41f05e0138645b5e85627df99f2e16fc0869c57d35aff79e86
96 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 external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://golowaki.ru/strik?utm_term=how+to+run+clean+cycle+on+frigidaire+affinity+washer PDF link annotation
    • https://cdn.sqhk.co/xadelakora/ihrS94x/bluetooth_para_pc_64_bits.pdfIn PDF document text
    • https://vujebitaj.weebly.com/uploads/1/3/4/7/134759162/fugip_bubob.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413227/normal_6000da14b352b.pdfIn PDF document text
    • https://cdn.sqhk.co/legexere/ChioJIU/lopekebasobapofig.pdfIn PDF document text
    • https://zajebujop.weebly.com/uploads/1/3/4/9/134902249/kapug.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372955/normal_60552904907af.pdfIn PDF document text
    • https://lomizagufefeg.weebly.com/uploads/1/3/4/0/134096038/kawajaxurojexe_kulosinav_ropenawitadujus_kuwedibepe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451955/normal_5fc8c88e6e985.pdfIn PDF document text
    • https://cdn.sqhk.co/xebibugekux/8h8hiie/super_bernie_bros.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374860/normal_6020fb9d32b86.pdfIn PDF document text
    • https://kikuwigew.weebly.com/uploads/1/3/1/4/131407235/japiviviserur.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388177/normal_5fca3134772cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459174/normal_605c049d6cec9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446165/normal_606275d6d9038.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459788/normal_5fff4d0173763.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449627/normal_5fcb5aec562c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446645/normal_60352f2276f1c.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/jusagi/2017_audi_q5_review_consumer_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/feliso/73951066014.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2810d9c4-d6ea-4ae9-86b0-cbf0644e782d/is_data_science_all_about_coding.pdfIn PDF document text
    • https://s3.amazonaws.com/kafises/87181080151.pdfIn PDF document text
    • https://s3.amazonaws.com/punagilelabon/kitchenaid_superba_refrigerator_ice_maker_troubleshooting.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9879cbde-d904-42fe-b41b-c23fc923019b/19617925002.pdfIn PDF document text
    • https://s3.amazonaws.com/poguvelefa/98171265751.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_off0001aaf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AAF8 5436 bytes
SHA-256: 67861721521ee0bfd09e55268e55dcf169c574f73e400c1300d4b2fc1b43f1ea
font_01_sfnt_off0001bd8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BD8B 12184 bytes
SHA-256: 461f95b27eda69d1b3a2c3871f6aed008212554939067cf47d45e8086086092e

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