Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd1348e7c84a1af1…

MALICIOUS

PDF

81.1 KB Created: 2021-02-06 13:34:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: cd017b0d277ee38d010a410a0cb54d54 SHA-1: 20fb0686178beeb628ab04515b36b232787c45ab SHA-256: fd1348e7c84a1af197cee51507ed048f5056f37c6977c6e8c4f0691c5a51aa3f
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, many pointing to suspicious domains, and is flagged by heuristics as a link farm and potential phishing/malware distribution vector. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to redirect users to malicious sites, likely for phishing or to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://bologen.ru/aws?utm_term=halo+bassinest+swivel+sleeper+instruction+manual PDF link annotation
    • https://nigikejogu.weebly.com/uploads/1/3/4/9/134902550/jefajeru-jukebaponer-fopipure-nopajapafusafo.pdfIn PDF document text
    • http://gazzsheff.xyz/doxaminojoxexegibepegewig17z3.pdfIn PDF document text
    • https://rujuzodojavumip.weebly.com/uploads/1/3/4/7/134726220/bujemawejonakasev.pdfIn PDF document text
    • https://totakolexab.weebly.com/uploads/1/3/5/3/135391630/1974905.pdfIn PDF document text
    • http://mesretly.xyz/coursera_machine_learning_week_6_assignment_answers2xl9g.pdfIn PDF document text
    • https://zusabave.weebly.com/uploads/1/3/1/4/131406295/buzujivinupub.pdfIn PDF document text
    • https://nubeboganiroj.weebly.com/uploads/1/3/1/3/131384383/3b0c73125fa57.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://s3.amazonaws.com/saziwijaxodav/inventory_value_report_sap.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/19506439142.pdfIn PDF document text
    • https://s3.amazonaws.com/jijari/indian_army_song_2019_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/xakusineba/34408090948.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/board_meeting_agenda_template_word_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/wujapu/10470062911.pdfIn PDF document text
    • https://s3.amazonaws.com/xetasif/58819119545.pdfIn PDF document text
    • https://s3.amazonaws.com/tikofaketonub/bidevewedasusowerokiliza.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF0A 5744 bytes
SHA-256: bdbb6034dc5d646cad7564524881f36ab4e59f0ca6e8ed162b0f016bfeef16af
font_01_sfnt_off0000f2e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2E1 5212 bytes
SHA-256: ebc73cb5987c77ac3fd7226fbbd45472c83bbed7066ed90a0863bc0cf53b12a3
font_02_sfnt_off0001048e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1048E 10412 bytes
SHA-256: 9e402343b9d7cde5271829d38668e9d649445941858915e06bdaeb2a07bfbf71
font_03_sfnt_off0001283a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1283A 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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