Malicious PDF — malware analysis report

Static analysis result for SHA-256 32f119e13c46e748…

MALICIOUS

PDF

83.6 KB Created: 2021-04-30 04:18:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 42e5c9a4f4e947eb783ada77332aa405 SHA-1: 2f9a786a99bc26f147e49b0e41498ed1cf7ab145 SHA-256: 32f119e13c46e748960d1bba2bcc0c822eecea02bf7db6ca020bafcd086f62c5
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of external links, many of which point to PDF files hosted on various domains, suggesting a link farm or phishing attempt. The ClamAV detection and ML classifier strongly indicate maliciousness. The document body, though heavily obfuscated, appears to be a lure related to a manual, directing users to potentially malicious URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jumiwimov.ru/strik?utm_term=dixie+chopper+silver+eagle+2744+manual
    • https://tediresul.weebly.com/uploads/1/3/5/3/135345321/nulezigutanobuzomo.pdf
    • https://xutevuper.weebly.com/uploads/1/3/0/9/130969179/a055243f608de0a.pdf
    • https://cdn-cms.f-static.net/uploads/4379486/normal_60418c9dd8808.pdf
    • http://vitofemegawe.getenjoyment.net/ata_carnet_form.pdf
    • https://kasutuwisuruja.weebly.com/uploads/1/3/1/8/131872017/36b3df.pdf
    • http://tamakedesununod.mywebcommunity.org/asian_paints_colour_combination_book.pdf
    • http://xuzerujagojagip.scienceontheweb.net/twilight_life_and_death_download.pdf
    • https://cdn.sqhk.co/demanajinu/jhhiaih/38706779356.pdf
    • https://cdn-cms.f-static.net/uploads/4409606/normal_5fd136b7429d0.pdf
    • https://cdn.sqhk.co/felebamifuk/gpY6Oge/rosumisotali.pdf
    • https://karozazosepi.weebly.com/uploads/1/3/4/3/134316788/papajedipowosu.pdf
    • https://bososafevibusup.weebly.com/uploads/1/3/4/0/134041518/8fc24a85.pdf
    • http://tisimewifexumi.iblogger.org/ranemavojuku.pdf
    • https://cdn.sqhk.co/zivupowixede/ijbijXn/14784903187.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://tutexotebaz.rf.gd/bosebamikebizab.pdf
    • https://7ec9ed57-df89-401a-953b-45744c150cee.filesusr.com/ugd/6e3131_39f642766b9049f6b9a478ddfb070e09.pdf?index=true
    • https://d80868e2-5d34-4dda-9345-0396294a35aa.filesusr.com/ugd/f9fac6_99bc7a1592514b56bf2162896abc6618.pdf?index=true
    • http://pinogizege.rf.gd/app_video_free_ios.pdf
    • https://badbb018-ab4e-499b-b788-960949b82e3d.filesusr.com/ugd/4f4c56_b65f040f29fa46d3bcbf04d5fa52ef28.pdf?index=true
    • https://a49ec80b-b4e3-4dac-84ed-d687b6aff6a5.filesusr.com/ugd/46d696_a04608b28b1a4a96bb4f19ed157c3a05.pdf?index=true
    • http://xunonevikonog.rf.gd/44599998161.pdf
    • http://tupudenijusab.rf.gd/basic_java_interview_questions_and_answers_free_download.pdf
    • https://e1cf253b-b3af-4135-a675-1c3c021177f9.filesusr.com/ugd/111c46_302a73e157e54fd09d789010e5307dcd.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f989.bin
28f118f7e12b8eb6ae4c91abbd8e7cf44ccce6a45310d5bede3eee2ea0d8cd46		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF989 5576 bytes
font_01_sfnt_off00010c66.bin
8765c9060fab7c3f268fe1a11f432f105764e8b89508f1b572c35e6ec853948e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C66 11224 bytes
font_02_sfnt_off000132b6.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x132B6 4324 bytes

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