Malicious PDF — malware analysis report

Static analysis result for SHA-256 00ce27c298315bfc…

MALICIOUS

PDF

73.0 KB Created: 2021-04-12 22:19:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 87bdf783b349623c0e2dbd7a5fa52761 SHA-1: e0021a7b8a17d76c07ca6e41bd70dccd3733fec9 SHA-256: 00ce27c298315bfce3650251ba89f333897b084d278515a08abf78bc68309dea
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with one prominent URL leading to a domain flagged for malicious activity. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing a second-stage payload. The document body, though heavily obfuscated, appears to contain keywords related to the embedded URLs, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://xezojetit.ru/strik?utm_term=dixie+chopper+silver+eagle+repair+manual PDF link annotation
    • http://ufenmac.com/badeboxabz6toj.pdfIn PDF document text
    • http://wssummer.space/cut_you_off_song_lyricstr94f.pdfIn PDF document text
    • https://dojoxokixen.weebly.com/uploads/1/3/4/8/134878929/ravunuga_sodiritavof_xutapekuf.pdfIn PDF document text
    • http://trokot-newshop.online/caltrans_bridge_design_practice_manualqneba.pdfIn PDF document text
    • https://zejinimab.weebly.com/uploads/1/3/1/8/131856072/lowilupididatejowes.pdfIn PDF document text
    • http://xajoxirutojik.iblogger.org/xakagokipitipedoxuve.pdfIn PDF document text
    • http://goldotzyv.ru/kundli_pro_64_bit_software_free10thm.pdfIn PDF document text
    • http://allwoman.site/fawigewejatagm2gwu.pdfIn PDF document text
    • http://lienforkid.com/bachelorette_party_invitation_templates_free_microsoftjapt3.pdfIn PDF document text
    • https://roloruvibufezer.weebly.com/uploads/1/3/1/4/131410818/pigen.pdfIn PDF document text
    • http://lalat.space/stanley_garage_door_bottom_seal_replacementy6h8t.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wepezip.epizy.com/16921628494.pdfIn PDF document text
    • http://fevovamebabeji.rf.gd/vefazuzumasefi.pdfIn PDF document text
    • http://vifowas.epizy.com/alligators_all_around_maurice_sendak.pdfIn PDF document text
    • http://wexalaz.epizy.com/jibese.pdfIn PDF document text
    • https://7dad073a-5858-4d13-bf35-a645d3acb044.filesusr.com/ugd/71e439_cfad02e767b043ae8882ba33f84e34ea.pdf?index=trueIn PDF document text
    • http://duguferebijojo.rf.gd/ore_beneficiation_process.pdfIn PDF document text
    • https://7be8961d-effb-4c78-a255-78c3c9f0be09.filesusr.com/ugd/3dd68e_b3800209544f4f778ad0ca40385c5767.pdf?index=trueIn PDF document text
    • http://zuwarikufaz.epizy.com/62758340647.pdfIn PDF document text
    • http://bomigezi.epizy.com/lemozujuburev.pdfIn PDF document text
    • https://0e01c86c-6ad9-43de-bc04-b8819f410213.filesusr.com/ugd/73c254_3f372d2c55124d1e8f273e7d1b713b9e.pdf?index=trueIn PDF document text
    • https://6974b9b2-fc2a-4e9b-9495-84ff65489eb7.filesusr.com/ugd/395280_4cd1d5b0a64144d2ac0c885fff5b0679.pdf?index=trueIn 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC63 5472 bytes
SHA-256: 291e0ba4d4e9bab3b19e866df409fb435f6e163ce598cf78626de331e059c02d
font_01_sfnt_off0000eeec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEEC 11032 bytes
SHA-256: d2726df0a354d921cdcd4b4347e7ee4c343e76cbcff31ead71332e64e9337fd0

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