Malicious PDF — malware analysis report

Static analysis result for SHA-256 62ea0f33973064e7…

MALICIOUS

PDF

77.6 KB Created: 2021-02-23 00:40:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 7fb7275233a29a7be70516bbf2762c35 SHA-1: 505c3517858f5e9ddb5caf9a53a6d3321be5fb6f SHA-256: 62ea0f33973064e7d30ef546a1d0c09d7115d420d40c6fc9c03193fd6f3e29dd
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 flagged as a phishing trojan. It contains an embedded URI pointing to 'baarspo.ru', which is likely a malicious domain used to serve a secondary payload or redirect the user. The document body, though heavily obfuscated, suggests a lure related to 'ethical hacking' to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/strik?utm_term=ethical+hacking+full+course+in+tamil+pdf PDF link annotation
    • https://vexefanakaxaki.weebly.com/uploads/1/3/4/8/134871487/6547247.pdfIn PDF document text
    • https://cdn.sqhk.co/xolanikipiz/hdNTEUq/star_wars_bacta_tank_toy.pdfIn PDF document text
    • https://cdn.sqhk.co/jisokemefaz/5jjNhfS/collage_maker_iphone_free.pdfIn PDF document text
    • http://xivetaf.22web.org/45229618.pdfIn PDF document text
    • https://menekagamop.weebly.com/uploads/1/3/4/0/134097565/5417287.pdfIn PDF document text
    • https://cdn.sqhk.co/remonupode/h7z7ghJ/alchemy_forge_of_gods_combinations.pdfIn PDF document text
    • https://xazonulukobimov.weebly.com/uploads/1/3/2/7/132712199/buvositexovi.pdfIn PDF document text
    • https://jimivisimobud.weebly.com/uploads/1/3/4/9/134901817/keravul.pdfIn PDF document text
    • https://cdn.sqhk.co/gukisafuw/CojdRib/55561907072.pdfIn PDF document text
    • http://jelepasit.22web.org/best_action_camera_2019_consumer_reports.pdfIn PDF document text
    • https://niritopep.weebly.com/uploads/1/3/4/6/134634222/jobiji-sixagejuzejix-bisuwufojetopu-dotopusi.pdfIn PDF document text
    • https://pufetebad.weebly.com/uploads/1/3/4/7/134711346/3814047.pdfIn PDF document text
    • https://tovunebutulewe.weebly.com/uploads/1/3/1/8/131871744/35421.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xajamojepoz.rf.gd/longman_dictionary_learners.pdfIn PDF document text
    • https://s3.amazonaws.com/kopisigapub/driver_impressora_bematech_mp-_4200_th.pdfIn PDF document text
    • http://wepirizifomonij.epizy.com/73898323234.pdfIn PDF document text
    • https://s3.amazonaws.com/seriposuj/68948161339.pdfIn PDF document text
    • http://jefebewo.epizy.com/pekewepagavatixewadit.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/dixokuwotorekazovune.pdfIn PDF document text
    • https://s3.amazonaws.com/xonobijikivo/autocad_lt_2018_free_trial.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e59e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE59E 5592 bytes
SHA-256: af2caf836de1d97210ff8448e26962419415de1417552a5267e6683f60141500
font_01_sfnt_off0000f87c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF87C 3720 bytes
SHA-256: d5ecec3e822993868ba70e247019bcdb656a9fee58d620eb93bc70658e929280
font_02_sfnt_off000103df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103DF 10828 bytes
SHA-256: 19e3417a9cc4bc2bbee384a81ef1d7db407545b413a00dfa32a89c3b3bfeb361

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