Malicious PDF — malware analysis report

Static analysis result for SHA-256 a03bdde43958623d…

MALICIOUS

PDF

74.6 KB Created: 2021-02-20 12:42:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 6d332606cee75de3caf7677fee1b1c38 SHA-1: d6ea0b130f6e8860038ea54a3a4eed8bbf87fed2 SHA-256: a03bdde43958623d889cb65a2b358e081746058a08839230a34e4c67d2f0a7eb
116 Risk Score

Malware Insights

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

The file is a PDF document flagged by ClamAV as a phishing trojan. It contains an embedded URL pointing to 'baarspo.ru', which is likely part of a phishing or malware distribution scheme. The heuristic 'SE_QR_LURE' suggests the document may also instruct users to scan a QR code, further supporting a phishing or social engineering attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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/wix?keyword=beyblade+burst+app+best+qr+codes PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4476947/normal_5ff4fa9b757db.pdfIn PDF document text
    • https://cdn.sqhk.co/jimavidozeze/ciWd2jj/pirenarow.pdfIn PDF document text
    • http://naturalm.space/moments_choose_your_story_mod_apk_1.1.5k2q02.pdfIn PDF document text
    • https://cdn.sqhk.co/reretukida/TW2pY3W/ninja_revenge_will_rise_ganzer_film_deutsch.pdfIn PDF document text
    • https://cdn.sqhk.co/dofofoziga/FhazhaT/final_fantasy_tactics_advance_3.pdfIn PDF document text
    • http://picsonair.com/wuzufosulasiprqu.pdfIn PDF document text
    • http://ttop-shop.com/94025391988s71io.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/wudibirewuduto/hearthstone_arena_guide_october_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/lekezaru/tojolovivuxukujorovolowu.pdfIn PDF document text
    • http://tereralubo.epizy.com/65687304919.pdfIn PDF document text
    • https://s3.amazonaws.com/pozokimepe/information_technology_manager_job_responsibilities.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/esvs_guidelines_carotid.pdfIn PDF document text
    • https://s3.amazonaws.com/jaloto/medscape_diabetes_guidelines.pdfIn PDF document text
    • http://lugegurofeso.epizy.com/xezofezonamod.pdfIn PDF document text
    • https://s3.amazonaws.com/tufujifinobiro/wilofipixumolapujo.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/makita_circular_saw_guide_rule.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/attain_noun_form.pdfIn PDF document text
    • http://wofufudemito.epizy.com/db_legends_apk.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dac0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAC0 5212 bytes
SHA-256: b53e5a152ba48d4d7fbef1bfa4aed438f0f81b4fd9e5d276d59ad3e0a848b07d
font_01_sfnt_off0000ec85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC85 10224 bytes
SHA-256: 606a61b7bcccdedf3f14f05e300736259aa02a3e183de26ed4579c74932ee6e7
font_02_sfnt_off00010f66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F66 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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