Malicious PDF — malware analysis report

Static analysis result for SHA-256 224c9f69fa121412…

MALICIOUS

PDF

137.5 KB Created: 2021-03-17 13:50:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f2449d5263f990d99d1b92c67915b32e SHA-1: d0be80c0431a4d9a5de3a01accdb125919c9f399 SHA-256: 224c9f69fa1214124611bf10df3528a375aa44b1e41bf8ffb2c5a3f4b4826466
104 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The presence of a 'download button' heuristic and an external URI pointing to 'lozipotod.ru' suggests a phishing attempt to trick the user into downloading a payload. While no scripts were explicitly extracted, the PDF structure and malicious classification indicate an attempt to exploit users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/strik?utm_term=how+to+write+a+logic+model+narrative
    • https://cdn.sqhk.co/nedabuke/2jiFibh/11392593170.pdf
    • https://cdn.sqhk.co/kisasizaro/kxZIEDX/posejapinoseg.pdf
    • http://xenifizonuk.22web.org/free_printable_budget_planner_2019.pdf
    • https://cdn.sqhk.co/jekuzedu/rjdiivp/gatefetuzoda.pdf
    • https://cdn.sqhk.co/zebimapajod/8UjdVum/zunokagarotikiwa.pdf
    • http://busevabafumoje.iblogger.org/angadi_theru_movie_songs_isaimini.pdf
    • http://kivikevakefum.22web.org/87658036363.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://0296ecfc-28ae-4fa5-925c-67a25994cace.filesusr.com/ugd/c88839_25de405c4fce49259340a3e3e6577e2c.pdf?index=true
    • https://7f1158f2-e44e-4cac-991a-806210d1dc3e.filesusr.com/ugd/e4a8e1_0ba80f96044a468f8e5021ef6242efb4.pdf?index=true
    • http://pozirumine.epizy.com/57909115555.pdf
    • https://s3.amazonaws.com/nowonovege/spatial_data_quality.pdf
    • https://27475d5a-2981-497d-8cd5-0c310ef10f8b.filesusr.com/ugd/9cb927_3ee8421efb9f44e6847bf133e837cef4.pdf?index=true
    • http://rebokomixuxoj.epizy.com/bepiraripuvobumu.pdf
    • https://s3.amazonaws.com/wisuw/ansel_adams_wilderness_map.pdf
    • http://misovin.epizy.com/91046515793.pdf
    • https://s3.amazonaws.com/fekaduvopigab/august_blank_calendar_template.pdf
    • https://050a9d39-d8a1-4107-8be8-b2b70b72e454.filesusr.com/ugd/5262df_470f8b293b814f5ab626ace6cde75ca6.pdf?index=true
    • http://nawatelobuj.rf.gd/norwegian_finans_holding_annual_report_2017.pdf
    • http://wakinenuzubuvu.epizy.com/time_management_worksheet_for_students.pdf
    • https://bf130ee1-1463-4c69-9604-1b23772ced92.filesusr.com/ugd/b4609a_40f24fde284d4463837e5491a38491c3.pdf?index=true
    • https://a540aa65-2eb1-4ac3-86d0-bf6a54daac96.filesusr.com/ugd/2d797c_dfcf65f773534a53aed19d1a56939c8e.pdf?index=true
    • https://24451074-f53b-4065-993c-779ba3957988.filesusr.com/ugd/0ae25f_2a95e6b752534563bb9ae9b2a3178911.pdf?index=true
    • http://puwogufipuja.epizy.com/90649632056.pdf
    • https://s3.amazonaws.com/kavugusepe/bosch_24_panel_ready_dishwasher_800_series_shv68t53uc.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_off0001dffe.bin
ffaf1fda12681b554c545567aa0d4b2b849e74f2a5e5235d50bd6eebc7d9b2dd
pdf-font-stream PDF embedded font (sfnt) at offset 0x1DFFE 5192 bytes
font_01_sfnt_off0001f1a8.bin
aae72ab69f750d025968b0b3a1798e3d5c497a088f5cefd9ee929ff5610bec10
pdf-font-stream PDF embedded font (sfnt) at offset 0x1F1A8 11952 bytes