Malicious PDF — malware analysis report

Static analysis result for SHA-256 262450fba99bd112…

MALICIOUS

PDF

79.4 KB Created: 2021-03-24 01:10:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b52c4b631abe811035e355f6a448624 SHA-1: 5d606d43a6ef472ccda50f860a6fcb065246cd83 SHA-256: 262450fba99bd112326eb1fc5e5bd8907238ac03e31a84f418d5283e4f9a63f8
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, identified by ClamAV as a phishing trojan. The document body, though heavily obfuscated, suggests a lure related to 'Dell xps 8300 specifications pdf'. The presence of external URLs and the ML classifier's high confidence score indicate a malicious intent, likely to redirect users to a phishing site or download further malicious content.

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://seumenha.ru/strik?utm_term=dell+xps+8300+specifications+pdf
    • http://losmopaka.site/the_apple_never_falls_far_from_the_tree_movie_quote0e86r.pdf
    • http://qwertyujg.xyz/fast_report_communitydyu5m.pdf
    • http://fejovamujolod.22web.org/brenda_fassie_biography.pdf
    • http://ketadiets.site/amazon_kindle_fire_hd_10_user_manual0jggq.pdf
    • http://idealslimitaly.site/rockshox_xc32_tk_coilvprbz.pdf
    • http://help-ruleviolation.com/3464403460722uzr.pdf
    • http://future-techno.ru/world_war_z_game_review_redditbdsri.pdf
    • http://nicepics.xyz/14351938823qkodx.pdf
    • http://accface.in/what_factors_led_to_the_renaissance_start_in_italyyf38i.pdf
    • http://reliables.ru/dbpower_camera_software_downloadt1jsd.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/67d5ca14-6010-457e-a944-8fede9866c38/special_education_aide_job_responsibilities.pdf
    • https://s3.amazonaws.com/xifabilejilab/givegizubunibizaji.pdf
    • https://s3.amazonaws.com/midizaxopazeji/6684091080.pdf
    • http://nukisiboviwal.epizy.com/how_to_expunge_your_driving_record_in_maryland.pdf
    • https://uploads.strikinglycdn.com/files/c770b7d1-6150-473c-afb7-e9b5532e5ed0/felukasotakuludug.pdf
    • https://uploads.strikinglycdn.com/files/00367a56-9555-4a2c-9310-833440214a07/que_es_un_manual_de_organizacin_empresarial.pdf
    • http://rugogeke.rf.gd/apache_nifi_for_dummies.pdf
    • https://s3.amazonaws.com/sivanira/aflac_cancer_wellness_claim_forms.pdf
    • https://uploads.strikinglycdn.com/files/4e4f8c55-c15b-4d93-945f-28e7ce091e16/spalding_basketball_net_parts.pdf
    • https://uploads.strikinglycdn.com/files/84a5ee56-0c69-4b77-9c0c-d5a367f3d467/computer_system_validation_life_cycle.pdf
    • https://s3.amazonaws.com/polexebuj/yowhatsapp_v8._0.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_off0000f838.bin
7356976d16935d69ba8def0d6c9067d7ffdf624e873a154774d26148704c0ec0
pdf-font-stream PDF embedded font (sfnt) at offset 0xF838 5620 bytes
font_01_sfnt_off00010b7a.bin
f8a4fbfbfd8cda10df2695ecbbd2770c5e7a8b9bdb58773b1e939d2dc14eee02
pdf-font-stream PDF embedded font (sfnt) at offset 0x10B7A 10984 bytes