Malicious PDF — malware analysis report

Static analysis result for SHA-256 0eb0a57c54e75c35…

MALICIOUS

PDF

70.1 KB Created: 2021-02-23 14:56:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: ed819d18c6412aeac2353848c0ad5bab SHA-1: 4a14f1042d033cb8bcd1244288b56bdd2f15cd5c SHA-256: 0eb0a57c54e75c3598e6825fbdabb0dd3b3618df7016691fe048b66640fed2d5
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains, and is flagged by heuristics as a link farm and by ML classifiers as malicious. The ClamAV detection further confirms its malicious nature. The document body, though heavily obfuscated, suggests a lure related to a 'manual', which is a common tactic for phishing or malware delivery.

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
  • 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://druttle.ru/wix?keyword=pacemaster+pro+plus+manual PDF link annotation
    • http://bcpzonasegurape2-viabcp.com/mad_man_after_doomsday_apk_downloadey8a2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486987/normal_6028e1b3b0e4f.pdfIn PDF document text
    • http://jidugisukeranav.iblogger.org/torchlight_2_berserker_leveling_guide.pdfIn PDF document text
    • http://the-job.ru/bareboat_charter_agreementthv8b.pdfIn PDF document text
    • https://cdn.sqhk.co/tosilura/RMsiggf/12455012389.pdfIn PDF document text
    • https://cdn.sqhk.co/zodozane/hfNwhc8/kuxawafevudimi.pdfIn PDF document text
    • http://wokulorumal.iblogger.org/acknowledge_receipt_short_form.pdfIn PDF document text
    • https://cdn.sqhk.co/libuzewis/jjfjd2N/wekopedowamab.pdfIn PDF document text
    • http://coolstudent.space/precio_de_arado_manual185co.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502178/normal_5fcb5e91ba034.pdfIn PDF document text
    • https://cdn.sqhk.co/pafevola/d6QO1jg/interesting_facts_about_mexico_culture.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451019/normal_5ff374e5921e2.pdfIn PDF document text
    • https://cdn.sqhk.co/raxipopu/ggwkGDA/81071267756.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4504870/normal_60177df286dd1.pdfIn PDF document text
    • http://lovelyhouse.online/petta_audio_launch_videowuxbx.pdfIn PDF document text
    • https://cdn.sqhk.co/fenazijeguk/e6tPKii/oppa_doll_apk_uptodown.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499958/normal_5ff8bd8f82901.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
    • http://gusalixofunek.epizy.com/pole_barn_sliding_door_guides.pdfIn PDF document text
    • http://namavorudil.epizy.com/lavadoseg.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_off0000c8f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8F3 4912 bytes
SHA-256: 73310ae1d9619766b81ea1a221d9db0b6dbdf0924be8e0c7324da733507e0075
font_01_sfnt_off0000d984.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD984 10436 bytes
SHA-256: b932b1c756df7916480f158b0b7ae02fc3ba5fbf7d0bf75b07291794adbd9343
font_02_sfnt_off0000fd3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD3C 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

Open this report in the interactive analyzer, or submit your own file for analysis.