Malicious PDF — malware analysis report

Static analysis result for SHA-256 0698176d48f4115a…

MALICIOUS

PDF

76.2 KB Created: 2021-04-02 04:36:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 5a0d7642122bb248ee3589e898ff76a1 SHA-1: 10f380b5c1e3b66027f662e3f3ec346954861afa SHA-256: 0698176d48f4115a29a9062c77fbd7d5e275cbe917dba28399a3752877e84fe6
202 Risk Score

Malware Insights

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

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier with high confidence. It contains a link farm with numerous external PDF links, many hosted on disposable domains, suggesting a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains elements that hint at a lure, possibly related to a download or an urgent action, supported by heuristics for urgency and download buttons.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 8

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/award?keyword=bienvenue+en+france+tome+2+pdf PDF link annotation
    • https://cdn.sqhk.co/wifinalimow/HxFjdji/killapps_close_all_apps_running_apk.pdfIn PDF document text
    • https://jemusutagutuf.weebly.com/uploads/1/3/5/3/135390091/jezipow.pdfIn PDF document text
    • https://puwulafu.weebly.com/uploads/1/3/5/3/135329465/67cdc2be76d36d.pdfIn PDF document text
    • https://mejojesakawevud.weebly.com/uploads/1/3/1/4/131438193/d79618.pdfIn PDF document text
    • https://kenafowipadile.weebly.com/uploads/1/3/1/4/131437871/6978267.pdfIn PDF document text
    • https://lawagupavuraxap.weebly.com/uploads/1/3/4/6/134616311/2690357.pdfIn PDF document text
    • https://bipokedofep.weebly.com/uploads/1/3/5/3/135322207/nokexakakorode.pdfIn PDF document text
    • https://murasujudadalox.weebly.com/uploads/1/3/5/3/135338307/2051828.pdfIn PDF document text
    • https://lebabipiw.weebly.com/uploads/1/3/0/9/130968925/6505429.pdfIn PDF document text
    • https://cdn.sqhk.co/pananumujo/ibha9ha/the_inner_world_game_wikipedia.pdfIn PDF document text
    • https://ramageputa.weebly.com/uploads/1/3/1/6/131637054/zudazonigem_lowuvodabon_lazovasogej_safexap.pdfIn PDF document text
    • https://punobedu.weebly.com/uploads/1/3/2/6/132683181/a7fa4139abe88d.pdfIn PDF document text
    • https://lonojoxojiliw.weebly.com/uploads/1/3/1/4/131438577/1001266.pdfIn PDF document text
    • https://cdn.sqhk.co/bexutavukaro/jfjjage/best_deals_online_shopping.pdfIn PDF document text
    • https://wisevagidigo.weebly.com/uploads/1/3/0/7/130740356/girokenibasid-kudazerawuvokum-mefekojaj-votuse.pdfIn PDF document text
    • https://zugixipenelir.weebly.com/uploads/1/3/4/5/134591811/1688912.pdfIn PDF document text
    • https://cdn.sqhk.co/zapiseniw/EhhfIgo/secure_settings_pro_license_key.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/b6d7c96f-e904-45bc-b6c8-873abd703c01/how_much_does_it_cost_to_start_a_podcast_on_itunes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f9558f1-5d5d-42be-9351-d05503b4b497/jupyter_notebook_windows_change_drive.pdfIn PDF document text
    • https://c81c1a69-aec6-471c-ac34-7a6800eafc69.filesusr.com/ugd/9ef1ea_8a04e4542c2c4d35b36c7455cb18233b.pdf?index=trueIn PDF document text
    • https://2108ee29-f41f-4224-afb3-8e24ca2f7712.filesusr.com/ugd/279473_ec8fbf5f6c56431e9bc71f4ff4a33beb.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/d13af94a-1827-4d16-894e-b1393789aaf2/jokovativunal.pdfIn PDF document text
    • https://a82c121c-2200-4cd7-aff6-47cf910fdadb.filesusr.com/ugd/117c17_34dabfd142e5430bb124fbf972974739.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ba60cae-2403-4f25-986a-ed10c1d1884c/26088655958.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA46 5332 bytes
SHA-256: 32c2d51f8064f3c444f4fe7ec706e4a90a8c292760fd9274477d3780ee4495e6
font_01_sfnt_off0000fc63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC63 11344 bytes
SHA-256: 6a20aa0154808999df8c002efc462ccebbb7d0ab75d7a00f55396461c22a9ccd