Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ed6505da97c0587…

MALICIOUS

PDF

86.1 KB Created: 2021-03-05 13:48:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 5c66b3879219c2ef7dc316e9ee0e37c0 SHA-1: 7385ad2789a329343a0dc7fc525d92424094a927 SHA-256: 1ed6505da97c058791f01a333cffdd8a7fc1e0d725242a16975452ab727a50a4
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with a primary one pointing to a suspicious domain associated with phishing lures. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for link farms, suggesting malicious intent. The ML classifier and ClamAV detection strongly indicate this PDF is malicious, likely serving as a phishing document or a dropper for further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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://lozipotod.ru/wix?keyword=things+fall+apart+chapter+1-7+summary PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4472186/normal_6024820b46f7a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444369/normal_603a680c3fc30.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388177/normal_5fde85f8b8096.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386597/normal_5ffc4b32f1654.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471234/normal_5ff3c0aab8a40.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377931/normal_60309e160bdf9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426257/normal_5fec40d8d3df7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bofozimugonofa.rf.gd/bursa_malaysia_sustainability_reporting_framework.pdfIn PDF document text
    • http://febarufowit.epizy.com/auto_transformer_starter_control_diagram.pdfIn PDF document text
    • https://a121017b-3fb3-450c-9156-48dd71a9bf80.filesusr.com/ugd/07625c_02a7fd9c916e431c8e2758391aac3317.pdf?index=trueIn PDF document text
    • https://d62ff7d9-aefc-4ab8-8cdf-af38868aea16.filesusr.com/ugd/54b9a1_f7235285e22146868a3d3533514376cc.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/26597e24-00e2-42d4-bd3f-99176828f7b5/7152555054.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a205f48-4941-44d8-9244-7f5015d2ba10/how_to_make_creamy_cajun_butter_sauce_for_seafood.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06957fe2-912b-42e7-8cfa-06cd6ced2674/29500444296.pdfIn PDF document text
    • https://992bddda-184d-467f-a815-0165b41a2208.filesusr.com/ugd/69695d_7fd4694ec84c4889a17b9136880a8bcc.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/59ec23be-963d-4550-8666-40ce6bbedeee/11780234508.pdfIn PDF document text
    • http://tituroxir.rf.gd/analyzing_political_cartoons_student_worksheet_answer_key.pdfIn PDF document text
    • http://dozafuzap.epizy.com/jokaxidiwomabo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/192b0bea-46b8-4b09-a3a3-ff85d46c3e36/90500905348.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5ee582c-a0cf-4ee9-aae7-ae8b1fed1b90/how_to_hack_gta_5_pc_money.pdfIn PDF document text
    • https://24d1f61b-f5c5-4d2f-8180-62589f44e8d8.filesusr.com/ugd/eed56f_886e84ab85b841a6a5436af3e65e0f4a.pdf?index=trueIn 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_off00011181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11181 5644 bytes
SHA-256: 62cb72eaa7fff19756e754582d6cec2e7dffb8556397e82e41e8ae7daeb3928c
font_01_sfnt_off000124ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124AD 11932 bytes
SHA-256: 545f52176fe2d7a88c80d7d2c34c00c058e7fdb4676dc690067cadd4d2fbd295

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