Malicious PDF — malware analysis report

Static analysis result for SHA-256 db0752897b1c22ac…

MALICIOUS

PDF

83.1 KB Created: 2021-03-25 11:00:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 05852c9bbfc64f83757fdd2b8ceb10c6 SHA-1: dc29432c0e6925f9452e0a126202db4d3613c8bc SHA-256: db0752897b1c22ace6202afd887722855f6886a6420b278814b83f36bf777f3c
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, which identified it as a phishing trojan. It contains an external URI pointing to a suspicious domain, likely intended to deliver a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, appears to contain keywords related to the URL, suggesting a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://vilenefex.ru/wix?keyword=comcast+channel+guide+lancaster+pa PDF link annotation
    • https://cdn.sqhk.co/dekorasenu/cijZgj6/food_defense_plan_warehouse.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378382/normal_6022bf6d378cb.pdfIn PDF document text
    • https://cdn.sqhk.co/bosamame/aghOhay/block_tank_wars_2_premium_hile_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492529/normal_5fc9433618993.pdfIn PDF document text
    • https://cdn.sqhk.co/sowuwinadapu/Eqhfhaq/t_mobile_tuesday_frankenstein_location.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470222/normal_604a9a38c2c4e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409393/normal_5ff8fc6cc703c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459482/normal_603c303e17dd1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450424/normal_6043bebf8827d.pdfIn PDF document text
    • https://cdn.sqhk.co/kekelivig/8Hjc7cR/nail_art_stamping_image_metal_plates_kit_set.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481409/normal_5fca288b8cfad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369928/normal_60333a8be7085.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497688/normal_60242058a5537.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450438/normal_5fcf36718c3ee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453579/normal_600cabf6904d0.pdfIn PDF document text
    • https://cdn.sqhk.co/soziwariru/0Fvgiji/15986419690.pdfIn PDF document text
    • https://cdn.sqhk.co/fopikudapom/ieLCji1/28842528709.pdfIn PDF document text
    • https://cdn.sqhk.co/vuzowadijavu/Qjhibia/siloseviwagopo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/3da898d1-66e0-4f79-9f0d-2181d30d4737/dialectical_behavior_therapy_groups_near_me.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f921ff17-b891-4320-9370-b2939a45cb3e/devoboxikudejola.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4bf99a64-24e9-4ac3-96cd-7cef832fa455/what_are_the_symbols_used_in_algebra.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af930455-424c-4792-90d9-3755e610f9de/ti-89_titanium_calculator_not_turning_on.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_off0000fca0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCA0 5392 bytes
SHA-256: 0eac636a1b8057a8305a59e7ae1c3d69151cc28ee1eb4b685dfe54f3bda2309d
font_01_sfnt_off00010ebc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EBC 1736 bytes
SHA-256: 07c84f77592677288ca875bf625b70675398c5641e675ea78e87ca7de719f1bc
font_02_sfnt_off00011741.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11741 10920 bytes
SHA-256: 9adc1c16831058b77d94efb325a744a3500cff0ba3beba39cfbe399c263a5384

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