Malicious PDF — malware analysis report

Static analysis result for SHA-256 272ffe0352cd099d…

MALICIOUS

PDF

80.6 KB Created: 2021-03-04 22:08:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f0bd3a896bac74b2b669580b987c70ee SHA-1: 5c148636cebacdc4cc4d1c3f81572f08107d6d27 SHA-256: 272ffe0352cd099d66faa3760ba6def3569fbb8fc0f6b772f39a4e76b4285692
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or credential harvesting scheme. The document body, though heavily obfuscated, suggests a lure related to economic recession definitions, aligning with common phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://zajinet.ru/aws?utm_term=what+is+an+economic+recession+definition
    • https://cdn-cms.f-static.net/uploads/4465151/normal_602fc32eab9c0.pdf
    • http://juvizex.sportsontheweb.net/is_logic_pro_x_easy_to_learn.pdf
    • http://sudakomazagupa.22web.org/pentatonix_evolution_of_beyonce_sheet_music.pdf
    • https://cdn-cms.f-static.net/uploads/4417652/normal_6027476865cfc.pdf
    • https://cdn-cms.f-static.net/uploads/4372982/normal_600b797dd81be.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/23885665-6c80-43f5-a4d8-0b8faf2ee321/67218449114.pdf
    • https://uploads.strikinglycdn.com/files/d4ea60d8-327d-4eac-9999-95bdfbae94f6/chartered_financial_analyst_salary.pdf
    • https://5d3a357a-25b2-4459-9cd8-210b235f7b36.filesusr.com/ugd/45e30f_8cfbb1170db54cb0b0f61851026ec66e.pdf?index=true
    • https://eac5c218-d238-408c-98a6-8ff0ecbb25fc.filesusr.com/ugd/b1277d_37dcd79bc30e41769d631d0e98ada3dc.pdf?index=true
    • https://uploads.strikinglycdn.com/files/66ea094b-9d85-4194-976c-0d748c95ac3d/what_is_management_and_administration_fees.pdf
    • http://pulutugorivexek.atwebpages.com/moto_360_2nd_gen_specs.pdf
    • https://0f8fedcd-12c0-4678-86f8-e2bff7269121.filesusr.com/ugd/70e7d4_c2103a49aef24feeb9ddbb0558df1259.pdf?index=true
    • http://xukokumo.myartsonline.com/fewode.pdf
    • https://21a67f6d-2aea-439f-a910-ed4feb6be009.filesusr.com/ugd/173616_578ddedbd6d54b189831cba18710d6a6.pdf?index=true
    • http://vazuvipib.rf.gd/15445320389.pdf
    • https://uploads.strikinglycdn.com/files/1a167d9c-c67d-470c-9cc6-05273cd9a3b2/rifobi.pdf
    • https://s3.amazonaws.com/xugigabitulu/sokamigip.pdf
    • https://911f1565-2faa-4874-b261-330d521e7362.filesusr.com/ugd/f46427_bbafa9c55c8c48a5a520a8e352a66974.pdf?index=true
    • https://s3.amazonaws.com/girilifawuxi/naa_autograph_movie_full_songs.pdf
    • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fd6f.bin
a492f6d68b6e7bb2e68d8765721aa7e73cae7950dc54f2f241868f2e11c24055		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD6F 5244 bytes
font_01_sfnt_off00010f24.bin
1dc4f7105c43bf275ba89d7d3cfc6c3da4dba00853acce8c39d432426d32e287		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10F24 11336 bytes

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