Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbe1528dbe65e066…

MALICIOUS

PDF

83.1 KB Created: 2021-03-01 12:15:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e533bc0c226bb45aa29763a0be8aeedc SHA-1: 5156d97106287741954b91f802397dd96861a7d8 SHA-256: cbe1528dbe65e066b4e04d7e35240ae7e061593dbb6ea8e8abfd448a3b673a8a
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a malicious domain, likely for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though heavily corrupted, contains text related to 'wkhtmltopdf' and a date, suggesting it might be a generated document used as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • 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://pelibifir.ru/123?utm_term=who+is+the+new+batman+2020
    • http://lotsmen.com/726147264812nutt.pdf
    • http://chambrely.xyz/how_do_i_remove_devices_from_my_kenwood_radiooiq18.pdf
    • https://static.s123-cdn-static.com/uploads/4445888/normal_5feda2d63ce2e.pdf
    • http://armada.technology/manual_maquina_de_costura_brother_ce_4000k1gvw.pdf
    • https://cdn-cms.f-static.net/uploads/4387813/normal_601ffd8c6a799.pdf
    • https://bexopugizabon.weebly.com/uploads/1/3/4/0/134042324/7965109.pdf
    • https://cdn-cms.f-static.net/uploads/4417659/normal_60138974b8dea.pdf
    • http://chambrehq.xyz/vsphere_client_6._0_linkigvwm.pdf
    • http://skout.tech/306315056522ncun.pdf
    • http://watertea.space/metaphysics_aristotle_perseusorirj.pdf
    • http://spain50off.info/29374039462b5g3a.pdf
    • https://cdn-cms.f-static.net/uploads/4403822/normal_5fe92a8b1b5a2.pdf
    • https://figapizezedop.weebly.com/uploads/1/3/4/3/134364787/foxedusokonoj_vivuti_pamisajolig.pdf
    • http://idealica-tufficiale.website/human_lifespan_in_ancient_timesf8d9p.pdf
    • http://tendernes.ru/application_for_scholarship_letter_examplesj2n97.pdf
    • https://pefopurez.weebly.com/uploads/1/3/4/3/134375846/8edd90614.pdf
    • https://jewadasin.weebly.com/uploads/1/3/4/6/134604584/53ac56aa2b8afe.pdf
    • http://topmassage.net/hallelujah_cohen_sheet_music_freegxz0i.pdf
    • https://cdn-cms.f-static.net/uploads/4481272/normal_602d027c97815.pdf
    • http://goodxday.xyz/kivozewixumupupogelp2wk.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://labireninofut.epizy.com/adding_machine_app_for_android.pdf
    • http://tewaremiluzavag.rf.gd/ipod_touch_5th_generation_dimensions_inches.pdf
    • http://kabodabuxujo.epizy.com/operations_order_example_usmc.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f97b.bin
4768bb9b5205d0b4030f46678bb0a3009f68f13fae9b9893493e0d373dfa2132		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF97B 5104 bytes
font_01_sfnt_off00010ab4.bin
e81cb0e7901bfb96151cfe1f1d3ac9ccffb89424fc34aa9c1fe0e6fdf440922c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10AB4 11180 bytes
font_02_sfnt_off00013081.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13081 4324 bytes

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